/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #ffffff, #f0f0f0);
        color: #333;
    }

    h1, h2, h3 {
        color: #1E3A8A; /* 深蓝色 */
        font-weight: bold;
    }

    p, ul, li, table, pre, code {
        line-height: 1.6;
    }

    a {
        color: #FF5722; /* 珊瑚红 */
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 容器样式 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 卡片式布局 */
    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .card {
        background: white;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    }

    .card img {
        width: 100%;
        height: auto;
    }

    .card-content {
        padding: 15px;
    }

    .card-title {
        font-size: 1.2em;
        margin-bottom: 10px;
        color: #FF5722;
    }

    .tags {
        margin-top: 10px;
    }

    .tag {
        display: inline-block;
        background: #e0e0e0;
        color: #555;
        padding: 5px 10px;
        border-radius: 15px;
        font-size: 0.8em;
        margin-right: 5px;
    }

    /* 示例展示样式 */
    .example {
        background: #fafafa;
        padding: 20px;
        border-left: 4px solid #1E3A8A;
        margin-top: 40px;
    }

    pre {
        background: #f4f4f4;
        padding: 10px;
        border-radius: 5px;
        overflow-x: auto;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

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

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

    /* 响应式设计 */
    @media (max-width: 768px) {
        .grid {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

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

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

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

    /* 按钮样式 */
    .btn {
        background: linear-gradient(45deg, #2196F3, #FF5722);
        color: white;
        padding: 10px 20px;
        border: none;
        border-radius: 25px;
        cursor: pointer;
        transition: background 0.3s;
    }

    .btn:hover {
        background: linear-gradient(45deg, #1E88E5, #E64A19);
    }

    /* 视差效果 */
    .parallax {
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center;
        background-attachment: fixed;
        background-size: cover;
        height: 400px;
        position: relative;
        color: white;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .parallax h1 {
        background: rgba(0, 0, 0, 0.5);
        padding: 20px;
        border-radius: 10px;
    }