/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #002B5B, #6A0DAD);
        color: #333333;
    }

    /* 容器 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        border-radius: 10px;
        position: relative;
        z-index: 1;
    }

    /* 标题样式 */
    h1, h2, h3, h4, h5, h6 {
        font-family: 'Roboto', sans-serif;
        color: #002B5B;
    }

    h1 {
        font-size: 36px;
        font-weight: bold;
        text-align: center;
        margin-bottom: 20px;
    }

    h2 {
        font-size: 28px;
        font-weight: bold;
        margin-top: 40px;
        margin-bottom: 20px;
        color: #FF6F00;
    }

    h3 {
        font-size: 22px;
        font-weight: 600;
        margin-top: 30px;
        margin-bottom: 15px;
        color: #FF7F50;
    }

    /* 段落样式 */
    p {
        font-size: 16px;
        line-height: 1.6;
        margin-bottom: 15px;
        color: #333333;
    }

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

    table th, table td {
        border: 1px solid #ddd;
        padding: 10px;
        text-align: left;
    }

    table th {
        background-color: #FF6F00;
        color: white;
    }

    /* 按钮样式 */
    .button-primary {
        background: linear-gradient(45deg, #FF6F00, #FF7F50);
        color: white;
        border: none;
        padding: 12px 24px;
        font-size: 16px;
        border-radius: 25px;
        cursor: pointer;
        transition: background 0.3s ease, transform 0.2s ease;
    }

    .button-primary:hover {
        background: linear-gradient(45deg, #FF7F50, #FF6F00);
    }

    .button-primary:active {
        transform: scale(0.95);
    }

    /* 栅格布局 */
    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        margin-bottom: 30px;
    }

    .card {
        background: white;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        transition: transform 0.3s ease;
    }

    .card:hover {
        transform: translateY(-5px);
    }

    /* 图片样式 */
    .decorative-images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 20px;
    }

    .decorative-images img {
        width: 100px;
        height: 100px;
        border-radius: 10px;
        object-fit: cover;
    }

    /* 代码块样式 */
    pre {
        background: #f5f5f5;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        margin-bottom: 20px;
    }

    code {
        color: #d63384;
    }

    /* 导航栏 */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 20px;
        background: rgba(0, 43, 91, 0.9);
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .navbar .logo {
        font-size: 24px;
        font-weight: bold;
        color: #FFFFFF;
    }

    .navbar ul {
        list-style: none;
        display: flex;
        gap: 15px;
    }

    .navbar ul li {
        position: relative;
    }

    .navbar ul li a {
        color: #FFFFFF;
        text-decoration: none;
        font-size: 16px;
        transition: color 0.3s ease, transform 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #FF6F00;
        transform: scale(1.1);
    }

    /* 页脚 */
    .footer {
        text-align: center;
        padding: 20px;
        background: rgba(0, 43, 91, 0.9);
        color: #FFFFFF;
        position: relative;
        z-index: 1;
    }

    .footer a {
        color: #FF6F00;
        text-decoration: none;
        margin: 0 10px;
        transition: color 0.3s ease;
    }

    .footer a:hover {
        color: #FF7F50;
    }

    /* 视觉冲击区 */
    .hero {
        position: relative;
        height: 400px;
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        text-align: center;
    }

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

    .hero h1 {
        font-size: 48px;
        font-weight: bold;
    }

    /* 示例展示区 */
    .example-section {
        background: #f0f0f0;
        padding: 30px;
        border-radius: 10px;
        margin-top: 40px;
    }

    .example-section h2 {
        color: #6A0DAD;
    }

    .example-section pre {
        background: #e8e8e8;
        padding: 15px;
        border-left: 5px solid #FF6F00;
        border-radius: 5px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .hero h1 {
            font-size: 42px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 15px;
        }
    }

    @media (max-width: 1024px) {
        .navbar ul {
            flex-direction: column;
            background: rgba(0, 43, 91, 0.95);
            position: absolute;
            top: 60px;
            right: 20px;
            display: none;
            border-radius: 8px;
        }

        .navbar ul.active {
            display: flex;
        }

        .navbar .menu-toggle {
            display: block;
            cursor: pointer;
            color: #FFFFFF;
            font-size: 24px;
        }
    }

    @media (max-width: 768px) {
        .hero {
            height: 300px;
        }

        h1 {
            font-size: 28px;
        }

        h2 {
            font-size: 24px;
        }

        h3 {
            font-size: 20px;
        }

        .button-primary {
            width: 100%;
            padding: 12px;
        }

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

    @media (max-width: 480px) {
        .hero {
            height: 200px;
        }

        h1 {
            font-size: 24px;
        }

        h2 {
            font-size: 20px;
        }

        .decorative-images img {
            width: 80px;
            height: 80px;
        }
    }

    @media (max-width: 320px) {
        .hero {
            height: 150px;
        }

        h1 {
            font-size: 20px;
        }

        h2 {
            font-size: 18px;
        }

        .button-primary {
            padding: 10px;
            font-size: 14px;
        }

        .decorative-images img {
            width: 60px;
            height: 60px;
        }
    }