/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Poppins', sans-serif;
        background: linear-gradient(135deg, #6a11cb, #2575fc);
        color: #ffffff;
        line-height: 1.6;
    }

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

    /* 头部样式 */
    header {
        text-align: center;
        padding: 100px 0;
        background: linear-gradient(135deg, #000428, #004e92);
        background-attachment: fixed;
        background-size: cover;
    }

    header h1 {
        font-size: 3em;
        margin-bottom: 20px;
        color: #ffffff;
    }

    header p {
        font-size: 1.2em;
        color: rgba(255, 255, 255, 0.8);
    }

    /* 导航栏 */
    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin-top: 20px;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        font-size: 1em;
        position: relative;
    }

    nav a::after {
        content: '';
        display: block;
        width: 0;
        height: 2px;
        background: #ff8c00;
        transition: width 0.3s;
        position: absolute;
        bottom: -5px;
        left: 0;
    }

    nav a:hover::after {
        width: 100%;
    }

    /* 主体内容 */
    main {
        padding: 50px 0;
    }

    .section-title {
        text-align: center;
        font-size: 2.5em;
        margin-bottom: 40px;
        color: #ffffff;
        position: relative;
    }

    .section-title::after {
        content: '';
        width: 100px;
        height: 4px;
        background: #ff8c00;
        margin: 10px auto 0;
        display: block;
        border-radius: 2px;
    }

    /* 模块化网格布局 */
    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 20px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.3);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 16px 64px rgba(0, 0, 0, 0.3);
    }

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

    .card h3 {
        margin-top: 0;
        font-size: 1.5em;
        color: #ff8c00;
    }

    .card p {
        color: rgba(255, 255, 255, 0.9);
    }

    /* 示例展示 */
    .example-display {
        background: rgba(0, 0, 0, 0.5);
        padding: 30px;
        border-radius: 15px;
        margin-top: 50px;
    }

    .example-display h2 {
        text-align: center;
        margin-bottom: 20px;
        color: #ff8c00;
    }

    .example-display article {
        max-height: 600px;
        overflow-y: auto;
    }

    .example-display pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
    }

    .example-display code {
        color: #dcdcaa;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.95em;
    }

    /* 提示信息 */
    .note {
        text-align: center;
        margin: 40px 0;
        font-size: 1em;
        color: rgba(255, 255, 255, 0.7);
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5em;
        }

        .section-title {
            font-size: 2em;
        }
    }

    @media (max-width: 1200px) {
        .container {
            width: 95%;
        }
    }

    @media (max-width: 1024px) {
        nav {
            flex-direction: column;
            gap: 15px;
        }

        header {
            padding: 80px 0;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2em;
        }

        .section-title {
            font-size: 1.8em;
        }

        .card h3 {
            font-size: 1.3em;
        }
    }

    @media (max-width: 480px) {
        header {
            padding: 60px 0;
        }

        header h1 {
            font-size: 1.5em;
        }

        nav a {
            font-size: 0.9em;
        }

        .section-title {
            font-size: 1.5em;
        }

        .card {
            padding: 15px;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.2em;
        }

        .section-title {
            font-size: 1.2em;
        }

        .card h3 {
            font-size: 1.1em;
        }
    }

    /* 动画效果 */
    .animated-gradient {
        background: linear-gradient(270deg, #ff8c00, #2575fc, #6a11cb, #ff8c00);
        background-size: 800% 800%;
        animation: gradientAnimation 30s ease infinite;
    }

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

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        margin-top: 10px;
        background-color: #ff8c00;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        text-decoration: none;
        transition: background-color 0.3s, transform 0.3s;
    }

    .btn:hover {
        background-color: #e07b00;
        transform: scale(1.05);
    }

    /* 页脚样式 */
    footer {
        text-align: center;
        padding: 20px 0;
        background: rgba(0, 0, 0, 0.7);
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.9em;
    }

    /* 图文并茂 */
    .media {
        display: flex;
        align-items: center;
        gap: 20px;
        margin-bottom: 30px;
        flex-wrap: wrap;
    }

    .media img {
        width: 100%;
        max-width: 300px;
        border-radius: 10px;
    }

    .media div {
        flex: 1;
    }

    /* 代码块样式 */
    pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
        margin: 20px 0;
    }

    code {
        color: #dcdcaa;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.95em;
    }

    /* 交互效果 */
    .interactive:hover {
        cursor: pointer;
        transform: scale(1.02);
        transition: transform 0.2s;
    }

    /* 优化滚动条 */
    ::-webkit-scrollbar {
        width: 8px;
    }

    ::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 4px;
    }

    ::-webkit-scrollbar-thumb {
        background: #ff8c00;
        border-radius: 4px;
    }