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

    body {
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Roboto', sans-serif;
        color: #ff8c00;
        margin-bottom: 20px;
    }

    p {
        margin-bottom: 15px;
    }

    /* 容器布局 */
    .container {
        max-width: 1200px;
        margin: auto;
        padding: 20px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        backdrop-filter: blur(10px);
    }

    /* 导航栏样式 */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 30px;
    }

    .navbar a {
        color: #ffffff;
        text-decoration: none;
        margin: 0 15px;
        font-size: 18px;
        transition: color 0.3s ease;
    }

    .navbar a:hover {
        color: #ff8c00;
    }

    /* 章节样式 */
    section {
        margin-bottom: 40px;
    }

    /* 卡片式设计 */
    .cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 15px;
        padding: 20px;
        box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
        backdrop-filter: blur(10px);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        background: rgba(255, 255, 255, 0.3);
    }

    .card img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    .card h3 {
        margin-bottom: 10px;
        font-size: 24px;
    }

    .card p {
        font-size: 16px;
    }

    .card button {
        margin-top: 15px;
        padding: 10px 20px;
        border: none;
        border-radius: 25px;
        background: linear-gradient(45deg, #ff8c00, #ff0080);
        color: #ffffff;
        cursor: pointer;
        transition: background 0.3s ease;
    }

    .card button:hover {
        background: linear-gradient(45deg, #ff0080, #ff8c00);
    }

    /* 代码展示样式 */
    pre {
        background: rgba(0, 0, 0, 0.5);
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

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

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    table, th, td {
        border: 1px solid #ffffff;
    }

    th, td {
        padding: 12px;
        text-align: left;
    }

    th {
        background: rgba(255, 140, 0, 0.7);
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

        .navbar a {
            margin: 10px 0;
        }

        .cards {
            grid-template-columns: 1fr;
        }
    }

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

        .card h3 {
            font-size: 20px;
        }

        .card p {
            font-size: 14px;
        }

        .navbar a {
            font-size: 16px;
        }
    }

    /* 动画效果 */
    @keyframes aurora-move {
        0% {
            background-position: 0% 50%;
        }
        50% {
            background-position: 100% 50%;
        }
        100% {
            background-position: 0% 50%;
        }
    }

    body {
        animation: aurora-move 15s linear infinite;
        background-size: 400% 400%;
    }

    /* 表单样式 */
    .feedback-form {
        background: rgba(255, 255, 255, 0.2);
        padding: 20px;
        border-radius: 10px;
        backdrop-filter: blur(10px);
    }

    .feedback-form input, .feedback-form textarea {
        width: 100%;
        padding: 10px;
        margin-bottom: 15px;
        border: none;
        border-radius: 5px;
        background: rgba(255, 255, 255, 0.3);
        color: #ffffff;
    }

    .feedback-form button {
        padding: 10px 20px;
        border: none;
        border-radius: 25px;
        background: linear-gradient(45deg, #ff8c00, #ff0080);
        color: #ffffff;
        cursor: pointer;
        transition: background 0.3s ease;
    }

    .feedback-form button:hover {
        background: linear-gradient(45deg, #ff0080, #ff8c00);
    }