/* 基础样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0A2463, #FF9800);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }

    h1, h2, h3, h4 {
        font-family: 'Bebas Neue', sans-serif;
        color: #ffffff;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 48px;
        text-align: center;
        margin-top: 40px;
    }

    h2 {
        font-size: 36px;
        margin-top: 30px;
    }

    h3 {
        font-size: 28px;
        margin-top: 25px;
    }

    h4 {
        font-size: 24px;
        margin-top: 20px;
    }

    p {
        font-size: 16px;
        margin-bottom: 15px;
    }

    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #ffeb3b;
    }

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

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

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

    th {
        background-color: rgba(255, 152, 0, 0.8);
    }

    /* 分屏布局 */
    .split-screen {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        margin-bottom: 40px;
    }

    @media (max-width: 768px) {
        .split-screen {
            grid-template-columns: 1fr;
        }
    }

    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

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

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

    th, td {
        border: 1px solid #ffffff;
        padding: 10px;
        text-align: center;
    }

    th {
        background-color: rgba(255, 152, 0, 0.8);
    }

    /* 动画效果 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    .animated-background {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
    }

    .chart-value {
        animation: growChart 2s ease-in-out forwards;
    }

    @keyframes growChart {
        from {
            transform: scale(0);
            opacity: 0;
        }
        to {
            transform: scale(1);
            opacity: 1;
        }
    }

    /* 响应式布局 */
    @media (max-width: 320px) {
        h1 { font-size: 32px; }
        h2 { font-size: 24px; }
        h3 { font-size: 20px; }
        h4 { font-size: 18px; }
    }

    @media (min-width: 1440px) {
        body {
            padding: 40px;
        }
    }

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

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

    /* 链接样式 */
    a {
        color: #ffeb3b;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #ffffff;
    }