/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Poppins', sans-serif;
        background: linear-gradient(135deg, #1a2980, #26d0ce);
        background-size: 400% 400%;
        animation: gradientAnimation 15s ease infinite;
        color: #ffffff;
    }

    @keyframes gradientAnimation {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    header {
        text-align: center;
        padding: 50px 20px;
    }

    header h1 {
        font-family: 'Poppins', sans-serif;
        font-size: 3em;
        text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
    }

    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin: 20px 0;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        font-size: 1.2em;
        transition: color 0.3s ease;
    }

    nav a:hover {
        color: #ffd700;
    }

    .content {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
    }

    article {
        flex: 2 1 600px;
        background: rgba(0, 0, 0, 0.5);
        padding: 20px;
        border-radius: 10px;
    }

    article h2 {
        font-family: 'Poppins', sans-serif;
        font-size: 2em;
        margin-bottom: 20px;
    }

    article h3 {
        font-family: 'Poppins', sans-serif;
        font-size: 1.5em;
        margin-top: 30px;
        margin-bottom: 10px;
    }

    article pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    article code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ff00;
    }

    .sidebar {
        flex: 1 1 300px;
        background: rgba(0, 0, 0, 0.3);
        padding: 20px;
        border-radius: 10px;
    }

    .sidebar h2 {
        font-family: 'Poppins', sans-serif;
        font-size: 1.8em;
        margin-bottom: 15px;
    }

    .sidebar ul {
        list-style: none;
        padding: 0;
    }

    .sidebar li {
        margin-bottom: 10px;
        display: flex;
        align-items: center;
    }

    .sidebar li img {
        width: 40px;
        height: 40px;
        margin-right: 10px;
        border-radius: 5px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
        transition: transform 0.3s ease;
    }

    .sidebar li img:hover {
        transform: scale(1.1);
    }

    footer {
        text-align: center;
        padding: 30px 20px;
        background: rgba(0, 0, 0, 0.7);
        margin-top: 40px;
        border-top: 2px solid #ffffff;
    }

    footer p {
        margin: 0;
        font-size: 1em;
    }

    /* 按钮样式 */
    .button {
        padding: 10px 20px;
        background-color: #4CAF50;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease;
        text-decoration: none;
        display: inline-block;
    }

    .button:hover {
        background-color: #45a049;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5em;
        }
        nav a {
            font-size: 1em;
        }
    }

    @media (max-width: 1200px) {
        .content {
            flex-direction: column;
        }
    }

    @media (max-width: 1024px) {
        article, .sidebar {
            flex: 1 1 100%;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2em;
        }
        nav {
            flex-direction: column;
            gap: 15px;
        }
    }

    @media (max-width: 480px) {
        article h2 {
            font-size: 1.5em;
        }
        .sidebar h2 {
            font-size: 1.5em;
        }
        .sidebar li img {
            width: 30px;
            height: 30px;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.8em;
        }
        nav a {
            font-size: 0.9em;
        }
        .button {
            padding: 8px 16px;
            font-size: 0.9em;
        }
    }