/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(to bottom, #001f3f, #000000);
        color: #ffffff;
        overflow-x: hidden;
    }

    /* 导航栏样式 */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 200px;
        height: 100%;
        background: rgba(0, 0, 0, 0.8);
        display: flex;
        flex-direction: column;
        align-items: center;
        padding-top: 50px;
        z-index: 1000;
    }

    .navbar a {
        color: #ffffff;
        text-decoration: none;
        margin: 20px 0;
        font-size: 16px;
        transition: color 0.3s ease;
    }

    .navbar a:hover {
        color: #00aced;
    }

    /* 主内容区样式 */
    .main-content {
        margin-left: 200px;
        padding: 50px;
        display: flex;
        flex-direction: column;
    }

    section {
        min-height: 100vh;
        padding: 50px 20px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        position: relative;
    }

    section:nth-child(even) {
        background: linear-gradient(to right, #2c3e50, #4ca1af);
    }

    section h2 {
        font-size: 36px;
        margin-bottom: 20px;
        color: #ffcc00;
    }

    section p {
        font-size: 18px;
        line-height: 1.6;
        max-width: 800px;
        margin: 0 auto 20px auto;
    }

    /* 按钮样式 */
    .btn {
        background-color: #0074D9;
        color: #ffffff;
        padding: 10px 20px;
        border: none;
        cursor: pointer;
        transition: background-color 0.3s ease;
        font-size: 16px;
    }

    .btn:hover {
        background-color: #0056b3;
    }

    /* 代码块样式 */
    pre {
        background: #2d2d2d;
        padding: 15px;
        border-radius: 5px;
        overflow: auto;
        max-width: 100%;
        margin: 20px 0;
    }

    code {
        color: #f8f8f2;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 图片样式 */
    .images-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        margin: 20px 0;
    }

    .images-container img {
        width: 150px;
        height: 150px;
        object-fit: cover;
        border-radius: 10px;
    }

    /* 粒子特效 */
    .particle-container {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        overflow: hidden;
    }

    .particle {
        position: absolute;
        width: 5px;
        height: 5px;
        background-color: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        animation: float 10s infinite ease-in-out;
    }

    @keyframes float {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-20px); }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .navbar {
            width: 180px;
        }

        .main-content {
            margin-left: 180px;
        }

        section h2 {
            font-size: 32px;
        }

        section p {
            font-size: 17px;
        }
    }

    @media (max-width: 1200px) {
        .navbar {
            width: 160px;
        }

        .main-content {
            margin-left: 160px;
        }

        section h2 {
            font-size: 28px;
        }

        section p {
            font-size: 16px;
        }
    }

    @media (max-width: 1024px) {
        .navbar {
            width: 140px;
        }

        .main-content {
            margin-left: 140px;
        }

        section h2 {
            font-size: 24px;
        }

        section p {
            font-size: 15px;
        }
    }

    @media (max-width: 768px) {
        .navbar {
            position: relative;
            width: 100%;
            height: auto;
            flex-direction: row;
            justify-content: space-around;
            padding: 20px 0;
        }

        .main-content {
            margin-left: 0;
            padding: 20px;
        }

        section {
            padding: 30px 10px;
        }

        section h2 {
            font-size: 22px;
        }

        section p {
            font-size: 14px;
        }
    }

    @media (max-width: 480px) {
        .navbar a {
            font-size: 14px;
            margin: 10px 0;
        }

        section h2 {
            font-size: 20px;
        }

        section p {
            font-size: 13px;
        }

        .images-container img {
            width: 100px;
            height: 100px;
        }
    }

    @media (max-width: 320px) {
        .navbar {
            flex-wrap: wrap;
        }

        .navbar a {
            font-size: 12px;
            margin: 5px 0;
        }

        section h2 {
            font-size: 18px;
        }

        section p {
            font-size: 12px;
        }

        .images-container img {
            width: 80px;
            height: 80px;
        }
    }

    /* 视觉效果增强 */
    .gradient-text {
        background: linear-gradient(45deg, #ff6ec4, #7873f5);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .highlight {
        background-color: rgba(255, 204, 0, 0.2);
        padding: 2px 4px;
        border-radius: 3px;
    }

    /* 示例数据展示样式 */
    .example-section {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 30px;
        max-width: 1000px;
        margin: 20px auto;
    }

    .example-section h3 {
        color: #ffcc00;
        margin-bottom: 15px;
    }

    .example-section ul {
        list-style: none;
        padding: 0;
    }

    .example-section li {
        margin-bottom: 10px;
        font-size: 16px;
    }

    .example-section li::before {
        content: "•";
        color: #ffcc00;
        margin-right: 10px;
    }

    /* 提示文字样式 */
    .reference-note {
        position: fixed;
        bottom: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.7);
        color: #ffffff;
        padding: 5px 10px;
        border-radius: 5px;
        font-size: 14px;
    }