/* 基础样式 */
    body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
        color: #ffffff;
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

    h1, h2, h3, h4, h5, h6 {
        color: #ffffff;
    }

    p {
        line-height: 1.6;
        margin: 0 0 1em 0;
    }

    a {
        color: #1cb5e0;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

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

    /* 头部 */
    header {
        text-align: center;
        padding: 50px 0;
        background: rgba(0, 0, 0, 0.5);
    }

    /* 卡片布局 */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        padding: 20px 0;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
        padding: 20px;
        transition: transform 0.3s, box-shadow 0.3s;
        backdrop-filter: blur(10px);
    }

    .card:hover {
        transform: translateY(-10px) scale(1.05);
        box-shadow: 0 12px 24px rgba(0,0,0,0.5);
    }

    .card img {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    .card h3 {
        margin-top: 15px;
        margin-bottom: 10px;
    }

    .card p {
        margin-bottom: 10px;
    }

    .tags {
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
    }

    .tags span {
        background: #1cb5e0;
        padding: 5px 10px;
        border-radius: 5px;
        font-size: 0.9em;
    }

    /* 示例数据展示 */
    .sample-article {
        background: rgba(0, 0, 0, 0.6);
        padding: 30px;
        border-radius: 10px;
        margin: 40px 0;
    }

    .sample-article h2 {
        text-align: center;
        margin-bottom: 20px;
    }

    .sample-article pre {
        background: #1f1f1f;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .sample-article code {
        color: #f8f8f2;
    }

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

    table, th, td {
        border: 1px solid #1cb5e0;
    }

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

    th {
        background: #1cb5e0;
        color: #000000;
    }

    /* 动画 */
    @keyframes portal-animation {
        0% {
            transform: scale(0.1);
            opacity: 0;
        }
        100% {
            transform: scale(1);
            opacity: 1;
        }
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        header {
            padding: 30px 0;
        }

        .sample-article {
            padding: 20px;
        }

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