/* 基础样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        color: #ffffff;
        font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
        line-height: 1.6;
        padding: 20px;
    }

    h1, h2, h3 {
        font-family: 'Futura', sans-serif;
        color: #00ff99;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 2.5em;
        text-align: center;
        animation: fadeIn 2s ease-in-out;
    }

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

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

    p {
        margin-bottom: 20px;
        font-size: 1em;
        color: #e0e0e0;
    }

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

    code {
        color: #00ff99;
        font-family: 'Courier New', Courier, monospace;
    }

    a {
        color: #ffcc00;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #ffffff;
    }

    /* 按钮样式 */
    .btn {
        background-color: #00ff99;
        color: #000;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        transition: all 0.3s ease;
        cursor: pointer;
    }

    .btn:hover {
        box-shadow: 0 0 10px #00ff99, 0 0 20px #00ff99, 0 0 30px #00ff99;
    }

    /* 容器与网格布局 */
    .container {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        padding: 20px;
    }

    .item {
        background-color: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        position: relative;
        overflow: hidden;
    }

    /* 图片样式 */
    .item img {
        width: 100%;
        border-radius: 5px;
        margin-bottom: 15px;
    }

    /* 视差滚动 */
    .parallax {
        background-image: url('https://images.gptkong.com/demo/sample1.png');
        height: 400px;
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
        margin-bottom: 40px;
        border-radius: 10px;
    }

    /* 动态粒子特效 */
    .particles {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent);
    }

    .particle {
        position: absolute;
        width: 5px;
        height: 5px;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        animation: move 5s infinite;
    }

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

    @keyframes move {
        from { transform: translateY(-100vh); }
        to { transform: translateY(100vh); }
    }

    /* 示例数据展示 */
    .example-data {
        background: linear-gradient(135deg, #330066, #6600cc);
        padding: 30px;
        border-radius: 10px;
        margin-top: 40px;
    }

    .example-data h2 {
        color: #ffcc00;
        text-align: center;
        margin-bottom: 20px;
    }

    .example-data ul {
        list-style: none;
    }

    .example-data li {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        margin-bottom: 10px;
        border-radius: 5px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        h1 {
            font-size: 2.3em;
        }

        h2 {
            font-size: 1.8em;
        }

        .container {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 1200px) {
        .container {
            grid-template-columns: 1fr;
        }

        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.6em;
        }
    }

    @media (max-width: 1024px) {
        body {
            padding: 15px;
        }

        h1 {
            font-size: 1.8em;
        }

        h2 {
            font-size: 1.4em;
        }
    }

    @media (max-width: 768px) {
        .container {
            grid-template-columns: 1fr;
        }

        h1 {
            font-size: 1.6em;
        }

        h2 {
            font-size: 1.2em;
        }
    }

    @media (max-width: 480px) {
        body {
            padding: 10px;
        }

        h1 {
            font-size: 1.4em;
        }

        h2 {
            font-size: 1em;
        }

        .btn {
            padding: 8px 16px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        h1 {
            font-size: 1.2em;
        }

        h2 {
            font-size: 0.9em;
        }

        p {
            font-size: 0.9em;
        }
    }