/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        color: #ffffff;
    }

    /* 头部样式 */
    header {
        background: rgba(0, 0, 0, 0.5);
        padding: 20px;
        text-align: center;
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1000;
    }

    header h1 {
        font-family: 'Roboto', sans-serif;
        font-size: 2.5rem;
        margin: 0;
        color: #ffdd57;
    }

    /* 主内容区样式 */
    main {
        padding: 100px 20px 50px 20px;
        max-width: 1200px;
        margin: 0 auto;
    }

    h2, h3 {
        font-family: 'Roboto', sans-serif;
        color: #ffdd57;
    }

    h2 {
        font-size: 2rem;
        margin-bottom: 20px;
    }

    h3 {
        font-size: 1.5rem;
        margin-top: 30px;
        margin-bottom: 15px;
    }

    p {
        font-size: 1rem;
        line-height: 1.6;
        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: #ffdd57;
    }

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

    th, td {
        border: 1px solid #ffdd57;
        padding: 10px;
        text-align: left;
    }

    th {
        background: rgba(255, 221, 87, 0.8);
        color: #1e3c72;
    }

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

    .image-gallery img {
        width: calc(25% - 10px);
        border-radius: 5px;
    }

    /* 按钮样式 */
    .button {
        display: inline-block;
        padding: 10px 20px;
        background: #ff851b;
        color: #ffffff;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        transition: background 0.3s ease;
        text-decoration: none;
    }

    .button:hover {
        background: #ff5722;
    }

    .button::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) scale(0);
        width: 300%;
        height: 300%;
        background: rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        transition: transform 0.5s ease;
    }

    .button:hover::before {
        transform: translate(-50%, -50%) scale(1);
    }

    /* 表格响应式 */
    @media (max-width: 768px) {
        .image-gallery img {
            width: calc(50% - 10px);
        }

        table, thead, tbody, th, td, tr {
            display: block;
        }

        th, td {
            padding: 10px;
            text-align: right;
            position: relative;
        }

        th::before, td::before {
            content: attr(data-label);
            position: absolute;
            left: 0;
            width: 50%;
            padding-left: 10px;
            font-weight: bold;
            text-align: left;
        }
    }

    /* 响应式设计 */
    @media (max-width: 480px) {
        header h1 {
            font-size: 1.8rem;
        }

        h2 {
            font-size: 1.6rem;
        }

        h3 {
            font-size: 1.3rem;
        }

        .image-gallery img {
            width: 100%;
        }
    }

    @media (min-width: 1440px) {
        main {
            padding: 150px 40px 50px 40px;
        }

        h2 {
            font-size: 2.5rem;
        }

        h3 {
            font-size: 1.8rem;
        }

        p {
            font-size: 1.1rem;
        }

        .image-gallery img {
            width: calc(20% - 10px);
        }
    }

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

    .hero-banner {
        background: linear-gradient(135deg, #0074D9, #FF851B);
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        animation: aurora-move 15s linear infinite;
        background-size: 400% 400%;
    }

    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.3);
        padding: 20px;
        margin-bottom: 20px;
        transition: transform 0.3s ease-in-out;
    }

    .card:hover {
        transform: translateY(-10px);
    }

    /* 提示语样式 */
    .reference-note {
        text-align: center;
        font-size: 1rem;
        margin-top: 30px;
        color: #ffdd57;
    }