/* 基础样式设置 */
    @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&family=Montserrat:wght@400;700&display=swap');

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

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

    h1, h2, h3, h4 {
        font-family: 'Montserrat', sans-serif;
        margin-bottom: 1rem;
    }

    h1 {
        font-size: 2.5rem;
        letter-spacing: 0.1em;
        text-align: center;
        margin-bottom: 2rem;
    }

    h2 {
        font-size: 2rem;
        letter-spacing: 0.08em;
        margin-top: 2rem;
    }

    h3 {
        font-size: 1.75rem;
        margin-top: 1.5rem;
    }

    h4 {
        font-size: 1.5rem;
        margin-top: 1rem;
    }

    p {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    ul {
        list-style: disc inside;
        margin-bottom: 1rem;
    }

    li {
        margin-bottom: 0.5rem;
    }

    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 1rem;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 1rem;
    }

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

    a {
        color: #00ffff;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #ff00ff;
    }

    img {
        width: 100%;
        max-width: 320px;
        height: auto;
        border-radius: 10px;
        margin: 1rem 0;
    }

    /* 容器和布局 */
    .container {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

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

    @media (min-width: 1024px) {
        .container {
            grid-template-columns: 2fr 3fr;
        }
    }

    .article, .sample-data {
        background: rgba(255, 255, 255, 0.1);
        padding: 2rem;
        border-radius: 10px;
    }

    .sample-data {
        grid-column: 1 / -1;
    }

    /* 按钮和交互元素 */
    .btn {
        display: inline-block;
        padding: 0.75rem 1.5rem;
        background: #ff00ff;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        text-decoration: none;
    }

    .btn:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }

    /* 代码块样式 */
    .code-block {
        background: rgba(0, 0, 0, 0.8);
        padding: 1rem;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 1rem;
    }

    .code-block code {
        color: #00ffcc;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.95rem;
    }

    /* 动画效果 */
    .container::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center;
        background-size: cover;
        opacity: 0.1;
        z-index: -1;
        animation: float 10s infinite alternate;
    }

    @keyframes float {
        from {
            transform: translateY(0px);
        }
        to {
            transform: translateY(-20px);
        }
    }

    /* 示例数据展示 */
    .sample-data h2 {
        text-align: center;
        margin-bottom: 1.5rem;
    }

    .sample-item {
        background: rgba(255, 255, 255, 0.2);
        padding: 1rem;
        border-radius: 5px;
        margin-bottom: 1rem;
    }

    .sample-item h4 {
        font-size: 1.25rem;
        margin-bottom: 0.5rem;
    }

    .sample-item p {
        font-size: 0.95rem;
    }

    /* 脚注 */
    .footer {
        text-align: center;
        margin-top: 2rem;
        font-size: 0.9rem;
        color: #cccccc;
    }

    /* 响应式设计 */
    @media (max-width: 480px) {
        h1 {
            font-size: 2rem;
        }

        h2 {
            font-size: 1.75rem;
        }

        h3 {
            font-size: 1.5rem;
        }

        h4 {
            font-size: 1.25rem;
        }

        .btn {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
        }
    }

    @media (min-width: 1200px) {
        body {
            padding: 40px;
        }

        .container {
            padding: 40px;
        }
    }

    @media (min-width: 1440px) {
        .container {
            max-width: 1400px;
        }
    }