/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: radial-gradient(circle, rgba(10,31,68,1) 0%, rgba(78,42,132,1) 50%, rgba(0,0,0,1) 100%);
        color: #ffffff;
        overflow-x: hidden;
    }

    h1, h2, h3 {
        text-align: center;
        color: #FFD700;
        text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
    }

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

    h2 {
        font-size: 2em;
        margin-top: 40px;
    }

    h3 {
        font-size: 1.5em;
        margin-top: 30px;
    }

    p {
        font-size: 1em;
        line-height: 1.6;
        margin: 20px auto;
        max-width: 800px;
        padding: 0 20px;
    }

    pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        max-width: 800px;
        margin: 20px auto;
    }

    code {
        color: #00FFFF;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(10,31,68,0.9);
        padding: 10px 0;
        z-index: 1000;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    }

    .navbar ul {
        list-style: none;
        display: flex;
        justify-content: center;
        margin: 0;
        padding: 0;
    }

    .navbar li {
        margin: 0 15px;
    }

    .navbar a {
        color: #00FFFF;
        text-decoration: none;
        font-size: 1.1em;
        transition: color 0.3s ease;
    }

    .navbar a:hover {
        color: #FFD700;
    }

    /* 模块化布局 */
    .module {
        margin: 80px auto;
        padding: 30px;
        background: rgba(78,42,132,0.8);
        border: 1px solid #4E2A84;
        box-shadow: 0 4px 8px rgba(0,0,0,0.5);
        border-radius: 10px;
        max-width: 1000px;
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .module:hover {
        transform: scale(1.02);
        background: rgba(78,42,132,0.9);
    }

    /* 按钮样式 */
    .button {
        background: #FFD700;
        color: #000000;
        border: none;
        padding: 10px 25px;
        border-radius: 5px;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        font-size: 1em;
    }

    .button:hover {
        transform: translateY(-3px);
        box-shadow: 0 6px 12px rgba(0,0,0,0.4);
    }

    /* 背景星河 */
    .stars {
        position: fixed;
        width: 100%;
        height: 100%;
        background: transparent;
        overflow: hidden;
        top: 0;
        left: 0;
        z-index: -1;
    }

    .star {
        position: absolute;
        width: 2px;
        height: 2px;
        background: #FFFFFF;
        border-radius: 50%;
        animation: twinkle 2s infinite alternate;
    }

    @keyframes twinkle {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    /* 代码块样式 */
    .code-block {
        background: rgba(0, 0, 0, 0.8);
        padding: 20px;
        border-radius: 8px;
        overflow-x: auto;
        max-width: 800px;
        margin: 20px auto;
    }

    /* 响应式设计 */
    @media (max-width: 320px) {
        h1 { font-size: 2em; }
        h2 { font-size: 1.5em; }
        h3 { font-size: 1.2em; }
        p { font-size: 0.9em; }
        .navbar ul { flex-direction: column; }
        .navbar li { margin: 10px 0; }
    }

    @media (max-width: 480px) {
        h1 { font-size: 2.2em; }
        h2 { font-size: 1.6em; }
        h3 { font-size: 1.3em; }
        p { font-size: 1em; }
    }

    @media (max-width: 768px) {
        .module { padding: 20px; }
        .navbar ul { flex-direction: row; }
    }

    @media (max-width: 1024px) {
        h1 { font-size: 2.5em; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.4em; }
    }

    @media (min-width: 1200px) {
        h1 { font-size: 3.5em; }
        h2 { font-size: 2.5em; }
        h3 { font-size: 1.8em; }
    }

    @media (min-width: 1440px) {
        h1 { font-size: 4em; }
        h2 { font-size: 3em; }
        h3 { font-size: 2em; }
    }

    /* 图片样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        max-width: 1000px;
        margin: 20px auto;
    }

    .image-gallery img {
        width: 320px;
        height: 320px;
        object-fit: cover;
        border-radius: 10px;
    }

    /* 提示文本 */
    .reference-note {
        text-align: center;
        font-size: 1em;
        color: #FFD700;
        margin: 40px 0;
    }

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

    .background-animation {
        animation: aurora-move 15s linear infinite;
    }