/* 基础样式 */
    body {
        margin: 0;
        font-family: 'Georgia', serif;
        background: linear-gradient(135deg, #87CEEB, #4B0082);
        color: #333;
    }

    /* 导航栏 */
    header {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(61, 153, 112, 0.9);
        padding: 20px;
        z-index: 1000;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    header h1 {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        color: #fff;
        font-size: 1.8em;
    }

    nav ul {
        list-style: none;
        padding: 0;
        margin: 10px 0 0 0;
        display: flex;
        gap: 15px;
    }

    nav a {
        color: #fff;
        text-decoration: none;
        font-size: 1em;
        transition: color 0.3s;
    }

    nav a:hover {
        color: #ADFF2F;
    }

    /* 主内容区 */
    main {
        padding: 100px 20px 20px 20px;
        max-width: 1200px;
        margin: auto;
    }

    section {
        margin-bottom: 40px;
    }

    h2, h3 {
        font-family: 'Roboto', sans-serif;
        color: #3D9970;
    }

    p {
        line-height: 1.6;
        margin: 15px 0;
    }

    pre {
        background: #f0f0f0;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #D2691E;
    }

    /* 图片样式 */
    .images-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }

    .images-grid img {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    /* 按钮样式 */
    .button {
        position: relative;
        overflow: hidden;
        background-color: #3D9970;
        color: white;
        border: none;
        padding: 10px 20px;
        cursor: pointer;
        border-radius: 5px;
        font-size: 1em;
    }

    .button::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        animation: ripple 0.6s ease-out;
        opacity: 0;
    }

    .button:hover::before {
        animation: none;
        opacity: 1;
        width: 200px;
        height: 200px;
    }

    @keyframes ripple {
        from {
            width: 0;
            height: 0;
            opacity: 1;
        }
        to {
            width: 200px;
            height: 200px;
            opacity: 0;
        }
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        header h1 {
            font-size: 1.5em;
        }

        nav ul {
            flex-direction: column;
            gap: 10px;
        }

        .images-grid {
            grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        }
    }