/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #0033cc, #6600cc);
        color: #ffffff;
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
    }
    h1, h2, h3, h4 {
        font-family: 'Roboto', sans-serif;
        color: #ffffff;
    }
    h1 {
        font-size: 2.5em;
        text-align: center;
        margin: 20px 0;
    }
    h2 {
        font-size: 2em;
        margin-top: 40px;
    }
    h3 {
        font-size: 1.75em;
        margin-top: 30px;
    }
    p {
        font-size: 1em;
        margin: 15px 0;
    }
    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        color: #00ffdd;
    }
    code {
        color: #ffcc00;
    }
    /* 布局 */
    .container {
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 20px;
    }
    .card {
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        margin: 20px 0;
        width: 90%;
        max-width: 1200px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        transition: transform 0.3s ease;
    }
    .card:hover {
        transform: scale(1.02);
    }
    /* 按钮 */
    .btn {
        background: linear-gradient(90deg, #ff9a00, #ff5700);
        color: white;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        cursor: pointer;
        transition: background 0.3s ease;
        text-decoration: none;
    }
    .btn:hover {
        background: linear-gradient(90deg, #ff5700, #ff9a00);
    }
    /* 响应式设计 */
    @media (max-width: 1440px) {
        h1 {
            font-size: 2.2em;
        }
        h2 {
            font-size: 1.8em;
        }
        h3 {
            font-size: 1.5em;
        }
    }
    @media (max-width: 1200px) {
        .card {
            width: 95%;
        }
    }
    @media (max-width: 1024px) {
        h1 {
            font-size: 2em;
        }
    }
    @media (max-width: 768px) {
        h1 {
            font-size: 1.8em;
        }
        .card {
            padding: 15px;
        }
    }
    @media (max-width: 480px) {
        h1 {
            font-size: 1.5em;
        }
        h2 {
            font-size: 1.5em;
        }
        h3 {
            font-size: 1.2em;
        }
    }
    @media (max-width: 320px) {
        h1 {
            font-size: 1.2em;
        }
    }
    /* 动画效果 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }
    .animated-background {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        height: 100vh;
        width: 100%;
        position: fixed;
        top: 0;
        left: 0;
        z-index: -1;
    }
    /* 图像样式 */
    img {
        max-width: 100%;
        border-radius: 10px;
        margin: 10px 0;
    }
    /* 导航栏 */
    .navbar {
        width: 100%;
        padding: 20px;
        background: rgba(0, 0, 0, 0.5);
        position: fixed;
        top: 0;
        left: 0;
        display: flex;
        justify-content: center;
        z-index: 1000;
    }
    .navbar a {
        color: #ffffff;
        margin: 0 15px;
        text-decoration: none;
        font-size: 1em;
        transition: color 0.3s ease;
    }
    .navbar a:hover {
        color: #ff5700;
    }
    /* 代码块样式 */
    .code-block {
        background: rgba(0, 0, 0, 0.7);
        padding: 20px;
        border-radius: 8px;
        overflow-x: auto;
    }