/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #4A90E2, #673AB7);
        color: #FFFFFF;
        transition: background 0.5s ease;
    }

    h1, h2, h3, h4, h5, h6 {
        font-family: 'Poppins', sans-serif;
        color: #FFD700;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    a {
        color: #FFD700;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #FFFFFF;
    }

    /* 容器和网格系统 */
    .container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        padding: 40px;
    }

    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        padding: 20px;
        backdrop-filter: blur(10px);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .card:hover {
        transform: scale(1.05);
        background: rgba(255, 215, 0, 0.2);
    }

    /* 按钮样式 */
    .btn {
        background-color: #673AB7;
        color: #FFFFFF;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .btn:hover {
        background-color: #FFD700;
        transform: scale(1.1);
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

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

    th, td {
        padding: 10px;
        text-align: left;
    }

    th {
        background-color: rgba(255, 215, 0, 0.3);
    }

    /* 代码块样式 */
    pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        color: #FFD700;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 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;
    }

    .line-animation {
        width: 100%;
        height: 2px;
        background: linear-gradient(to right, #4A90E2, #673AB7);
        animation: move 2s infinite alternate;
        margin: 20px 0;
    }

    @keyframes move {
        0% { transform: translateX(-100%); }
        100% { transform: translateX(100%); }
    }

    /* 表单和输入框样式（无使用） */
    input, textarea {
        display: none;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            padding: 30px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 25px;
        }
    }

    @media (max-width: 1024px) {
        .container {
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            padding: 20px;
        }
    }

    @media (max-width: 768px) {
        .container {
            grid-template-columns: 1fr;
            padding: 15px;
        }

        h1 {
            font-size: 24px;
        }

        h2 {
            font-size: 20px;
        }

        h3 {
            font-size: 18px;
        }
    }

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

        h1 {
            font-size: 20px;
        }

        h2 {
            font-size: 18px;
        }

        h3 {
            font-size: 16px;
        }
    }

    @media (max-width: 320px) {
        .container {
            padding: 5px;
        }

        h1 {
            font-size: 18px;
        }

        h2 {
            font-size: 16px;
        }

        h3 {
            font-size: 14px;
        }
    }

    /* 图片样式 */
    img {
        width: 100%;
        height: auto;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    /* 提示信息样式 */
    .notice {
        text-align: center;
        font-size: 18px;
        margin: 20px 0;
        color: #FFD700;
    }