/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #000046, #1cb5e0);
        color: #ffffff;
        font-family: 'Roboto', sans-serif;
        overflow-x: hidden;
    }
    
    /* 头部样式 */
    header {
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
        background: rgba(0, 0, 0, 0.5);
        text-align: center;
        flex-direction: column;
    }
    
    header h1 {
        font-size: 3rem;
        margin-bottom: 20px;
        color: #39FF14;
        text-shadow: 2px 2px 8px #ff00ff;
    }
    
    header p {
        font-size: 1.5rem;
        max-width: 800px;
        line-height: 1.6;
    }
    
    /* 主体内容样式 */
    .section {
        padding: 60px 20px;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #1cb5e0, #000046);
        position: relative;
    }
    
    .section:nth-child(even) {
        background: linear-gradient(135deg, #000046, #1cb5e0);
    }
    
    .section h2 {
        font-size: 2.5rem;
        margin-bottom: 20px;
        color: #ff00ff;
        text-shadow: 1px 1px 5px #39FF14;
    }
    
    .section p {
        font-size: 1.2rem;
        max-width: 800px;
        text-align: center;
        line-height: 1.8;
    }
    
    /* 示例展示样式 */
    .example {
        background: rgba(255, 255, 255, 0.1);
        padding: 40px;
        border-radius: 10px;
        box-shadow: 0 0 20px rgba(0,0,0,0.5);
        max-width: 900px;
        width: 90%;
        margin: 40px auto;
    }
    
    .example h3 {
        font-size: 2rem;
        margin-bottom: 15px;
        color: #39FF14;
    }
    
    .example pre {
        background: #1a1a1a;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        color: #f1f1f1;
        font-size: 1rem;
    }
    
    .example code {
        font-family: 'Courier New', Courier, monospace;
    }
    
    /* 图片样式 */
    .decorative-images {
        position: absolute;
        top: 10px;
        right: 10px;
        display: flex;
        gap: 10px;
    }
    
    .decorative-images img {
        width: 80px;
        height: 80px;
        object-fit: cover;
        border-radius: 50%;
        animation: float 6s ease-in-out infinite;
    }
    
    .decorative-images img:nth-child(odd) {
        animation-delay: 2s;
    }
    
    @keyframes float {
        0% { transform: translateY(0px); }
        50% { transform: translateY(-20px); }
        100% { transform: translateY(0px); }
    }
    
    /* 提示文字样式 */
    .reference-note {
        position: fixed;
        bottom: 10px;
        left: 50%;
        transform: translateX(-50%);
        background: rgba(0, 0, 0, 0.7);
        padding: 10px 20px;
        border-radius: 20px;
        font-size: 1rem;
        color: #ffffff;
        box-shadow: 0 0 10px rgba(0,0,0,0.5);
    }
    
    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5rem;
        }
        .section h2 {
            font-size: 2rem;
        }
    }
    
    @media (max-width: 1200px) {
        header h1 {
            font-size: 2rem;
        }
        .section h2 {
            font-size: 1.8rem;
        }
        .decorative-images img {
            width: 60px;
            height: 60px;
        }
    }
    
    @media (max-width: 1024px) {
        .section p {
            font-size: 1.1rem;
        }
        .example h3 {
            font-size: 1.8rem;
        }
    }
    
    @media (max-width: 768px) {
        header h1 {
            font-size: 1.8rem;
        }
        .section h2 {
            font-size: 1.5rem;
        }
        .decorative-images img {
            width: 50px;
            height: 50px;
        }
    }
    
    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5rem;
        }
        .section h2 {
            font-size: 1.3rem;
        }
        .section p {
            font-size: 1rem;
        }
        .example h3 {
            font-size: 1.5rem;
        }
    }
    
    @media (max-width: 320px) {
        header h1 {
            font-size: 1.2rem;
        }
        .section h2 {
            font-size: 1.1rem;
        }
        .section p {
            font-size: 0.9rem;
        }
        .example h3 {
            font-size: 1.2rem;
        }
    }