/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

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

    a {
        color: #66fcf1;
        text-decoration: none;
        transition: color 0.3s ease, transform 0.3s ease;
    }

    a:hover {
        color: #45a29e;
        transform: scale(1.1);
    }

    h1, h2, h3, h4 {
        font-family: 'Inter', sans-serif;
        margin-bottom: 15px;
        color: #ffffff;
    }

    h1 {
        font-size: 2.5em;
        text-align: center;
        margin-top: 20px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

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

    h2::after {
        content: '';
        width: 50px;
        height: 4px;
        background: linear-gradient(90deg, #66fcf1, #45a29e);
        display: block;
        margin: 10px 0;
    }

    p {
        font-size: 1.1em;
        margin-bottom: 20px;
        color: #d3d3d3;
    }

    .container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        padding: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        background: rgba(255, 255, 255, 0.2);
    }

    pre {
        background: rgba(0, 0, 0, 0.5);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        color: #00ffea;
    }

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

    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 20px;
    }

    .image-gallery img {
        width: 100%;
        height: auto;
        border-radius: 8px;
        transition: transform 0.3s ease;
    }

    .image-gallery img:hover {
        transform: scale(1.05);
    }

    .footer {
        text-align: center;
        padding: 20px;
        margin-top: 40px;
        background: rgba(0, 0, 0, 0.3);
        border-radius: 10px;
    }

    /* 动画效果 */
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    .fade-in {
        animation: fadeIn 2s ease-in-out;
    }

    @media (max-width: 1440px) {
        h1 {
            font-size: 2.2em;
        }

        h2 {
            font-size: 1.8em;
        }

        p {
            font-size: 1em;
        }
    }

    @media (max-width: 1200px) {
        .container {
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
    }

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

        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.6em;
        }
    }

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

        h1 {
            font-size: 1.8em;
        }

        h2 {
            font-size: 1.4em;
        }
    }

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

        h1 {
            font-size: 1.5em;
        }

        h2 {
            font-size: 1.2em;
        }

        p {
            font-size: 0.9em;
        }
    }

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

        h2 {
            font-size: 1em;
        }

        p {
            font-size: 0.8em;
        }
    }