/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #1E2D4C, #7A8FFF);
        color: #ffffff;
        line-height: 1.6;
        overflow-x: hidden;
    }

    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        border-radius: 10px;
    }

    /* 标题 */
    header {
        text-align: center;
        padding: 50px 0;
    }

    header h1 {
        font-family: 'Poppins', sans-serif;
        font-size: 3rem;
        color: #FFD700;
        text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        opacity: 0.95;
    }

    /* 导航 */
    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin-bottom: 40px;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        font-size: 1.1rem;
        position: relative;
        transition: all 0.3s ease;
    }

    nav a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 2px;
        background: #FFD700;
        left: 0;
        bottom: -5px;
        transition: width 0.3s;
    }

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

    /* 主内容 */
    main {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 20px;
        flex: 1 1 calc(33.333% - 40px);
        backdrop-filter: blur(10px);
        transition: transform 0.3s, box-shadow 0.3s;
    }

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

    .card img {
        width: 100%;
        border-radius: 8px;
        margin-bottom: 15px;
    }

    .card h3 {
        font-family: 'Poppins', sans-serif;
        color: #FFD700;
        margin-bottom: 10px;
    }

    .card p {
        font-size: 1rem;
    }

    /* 示例展示 */
    .example {
        width: 100%;
        margin: 50px 0;
        padding: 20px;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 10px;
    }

    .example h2 {
        font-family: 'Poppins', sans-serif;
        color: #FFD700;
        margin-bottom: 20px;
        text-align: center;
    }

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

    .example pre {
        background: rgba(0,0,0,0.7);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

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

    /* 底部 */
    footer {
        text-align: center;
        padding: 30px 0;
        color: #ffffff;
        background: rgba(0, 0, 0, 0.3);
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .card {
            flex: 1 1 calc(50% - 40px);
        }
    }

    @media (max-width: 1024px) {
        nav {
            flex-direction: column;
            gap: 15px;
        }
        .card {
            flex: 1 1 100%;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2.5rem;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 2rem;
        }
        nav a {
            font-size: 1rem;
        }
    }

    @media (max-width: 320px) {
        .container {
            padding: 10px;
        }
        .card {
            padding: 15px;
        }
    }

    /* 动画效果 */
    .button {
        position: relative;
        padding: 10px 20px;
        background: #FFD700;
        color: #1E2D4C;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: transform 0.2s, background-color 0.3s;
        margin-top: 20px;
    }

    .button::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: all 0.5s ease-out;
    }

    .button:hover::before {
        width: 200px;
        height: 200px;
    }

    .button:active {
        transform: scale(0.95);
        background-color: #7A8FFF;
    }

    /* 粒子动画 */
    .particles {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: -1;
    }

    /* 边框样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 20px;
    }

    table, th, td {
        border: 1px solid #FFD700;
    }

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

    th {
        background: rgba(255, 215, 0, 0.7);
    }