/* 基础样式设置 */
    @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
    @import url('https://fonts.googleapis.com/css2?family=Eurostile+Extended:wght@700&display=swap');

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        background: linear-gradient(135deg, #0A192F, #4ECDC4);
        color: #FFFFFF;
        padding: 20px;
    }

    h1, h2, h3 {
        font-family: 'Eurostile Extended', sans-serif;
        color: #FF6B6B;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 2.5rem;
        text-align: center;
        margin-top: 20px;
    }

    h2 {
        font-size: 2rem;
        margin-top: 40px;
    }

    h3 {
        font-size: 1.5rem;
        margin-top: 30px;
    }

    p {
        margin-bottom: 20px;
        font-size: 1rem;
        color: #E0E0E0;
    }

    a {
        color: #FF6B6B;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #4ECDC4;
    }

    .container {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: 20px;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    .module {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .module:hover {
        transform: translateY(-10px);
        background: rgba(255, 107, 107, 0.2);
    }

    .module-4 {
        grid-column: span 4;
    }

    @media (max-width: 1024px) {
        .module-4 {
            grid-column: span 6;
        }
    }

    @media (max-width: 768px) {
        .module-4 {
            grid-column: span 12;
        }
    }

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

    table th, table td {
        border: 1px solid #4ECDC4;
        padding: 10px;
        text-align: left;
    }

    table th {
        background: #FF6B6B;
    }

    pre {
        background: #1F2833;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    code {
        font-family: 'Roboto Mono', monospace;
        color: #66FCF1;
    }

    .background-pattern {
        background-image: linear-gradient(45deg, rgba(255, 107, 107, 0.1), rgba(78, 205, 196, 0.1));
        padding: 20px;
        border-radius: 10px;
    }

    .highlight {
        background-color: #4ECDC4;
        padding: 2px 5px;
        border-radius: 3px;
    }

    img {
        width: 100%;
        height: auto;
        border-radius: 10px;
        margin-bottom: 20px;
    }

    .footer {
        text-align: center;
        padding: 20px;
        background: rgba(10, 25, 47, 0.8);
        border-radius: 10px;
        margin-top: 40px;
    }

    .footer p {
        color: #FFFFFF;
        font-size: 0.9rem;
    }

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

    .aurora {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        height: 200px;
        border-radius: 50%;
        margin: 40px auto;
    }

    /* 数据可视化图表样式 */
    .chart {
        position: relative;
        width: 100%;
        height: 300px;
        background: #0A192F;
        border-radius: 10px;
        padding: 20px;
    }

    .bar {
        width: 50px;
        background: #FF6B6B;
        margin: 0 10px;
        transition: height 0.5s ease-in-out;
    }

    .bar:hover {
        height: 120%;
        background: #4ECDC4;
    }

    /* 响应式设计调整 */
    @media (max-width: 1440px) {
        body {
            padding: 15px;
        }

        h1 {
            font-size: 2.2rem;
        }

        h2 {
            font-size: 1.8rem;
        }

        h3 {
            font-size: 1.3rem;
        }
    }

    @media (max-width: 1200px) {
        .container {
            grid-template-columns: repeat(12, 1fr);
            gap: 15px;
        }
    }

    @media (max-width: 480px) {
        h1 {
            font-size: 1.8rem;
        }

        h2 {
            font-size: 1.5rem;
        }

        h3 {
            font-size: 1.1rem;
        }

        .module {
            padding: 15px;
        }
    }

    @media (min-width: 1440px) {
        body {
            padding: 30px;
        }

        h1 {
            font-size: 3rem;
        }

        h2 {
            font-size: 2.5rem;
        }

        h3 {
            font-size: 2rem;
        }
    }