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

    body {
        font-family: 'Roboto Mono', monospace;
        color: #ffffff;
        background: linear-gradient(135deg, #0d1b2a, #1b263b, #415a77);
        overflow-x: hidden;
    }

    a {
        color: #00aaff;
        text-decoration: none;
        rel: nofollow;
    }

    a:hover {
        color: #ffaa00;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.7);
        padding: 20px;
        display: flex;
        justify-content: space-around;
        z-index: 1000;
    }

    .navbar a {
        font-size: 1rem;
        transition: color 0.3s;
    }

    /* 主页 */
    .home {
        height: 100vh;
        background: url('https://images.gptkong.com/demo/sample1.png') center center/cover no-repeat;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        position: relative;
    }

    .home::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(13, 27, 42, 0.6);
    }

    .home-content {
        position: relative;
        z-index: 1;
    }

    .home h1 {
        font-family: 'Exo 2', sans-serif;
        font-size: 3rem;
        background: linear-gradient(90deg, #00aaff, #ffaa00);
        -webkit-background-clip: text;
        color: transparent;
        margin-bottom: 20px;
    }

    .home p {
        font-size: 1.2rem;
        margin-bottom: 30px;
    }

    .home button {
        padding: 10px 20px;
        border: none;
        background: #00aaff;
        color: #fff;
        font-size: 1rem;
        cursor: pointer;
        border-radius: 5px;
        transition: background 0.3s, transform 0.3s;
    }

    .home button:hover {
        background: #ffaa00;
        transform: scale(1.05);
    }

    /* 关于模块 */
    .about {
        padding: 100px 50px;
        background: linear-gradient(135deg, #1b263b, #415a77);
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
    }

    .about img {
        width: 300px;
        height: 300px;
        border-radius: 10px;
        margin: 20px;
    }

    .about-text {
        max-width: 600px;
        margin: 20px;
    }

    .about-text h2 {
        font-size: 2rem;
        margin-bottom: 20px;
        color: #00aaff;
    }

    .about-text p {
        font-size: 1rem;
        line-height: 1.6;
    }

    /* 最新研究动态 */
    .research {
        padding: 100px 50px;
        background: linear-gradient(135deg, #415a77, #1b263b);
    }

    .research h2 {
        text-align: center;
        margin-bottom: 50px;
        font-size: 2rem;
        color: #ffaa00;
    }

    .research-cards {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        width: 300px;
        margin: 20px;
        padding: 20px;
        transition: transform 0.3s, background 0.3s;
    }

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

    .card h3 {
        margin-bottom: 15px;
        color: #00aaff;
    }

    .card p {
        margin-bottom: 10px;
        line-height: 1.5;
    }

    .card .icon {
        font-size: 2rem;
    }

    /* 示例数据展示 */
    .sample-data {
        padding: 100px 50px;
        background: linear-gradient(135deg, #1b263b, #0d1b2a);
    }

    .sample-data h2 {
        text-align: center;
        margin-bottom: 50px;
        font-size: 2rem;
        color: #ffaa00;
    }

    .article {
        max-width: 800px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
    }

    .article h2, .article h3, .article h4 {
        color: #00aaff;
    }

    .article p, .article ul, .article table {
        margin-bottom: 15px;
        line-height: 1.6;
    }

    .article pre {
        background: #0d1b2a;
        padding: 10px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .article code {
        color: #ffaa00;
    }

    .article table {
        width: 100%;
        border-collapse: collapse;
    }

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

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

    /* 底部 */
    .footer {
        padding: 50px;
        background: linear-gradient(135deg, #0d1b2a, #1b263b);
        text-align: center;
    }

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

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .home h1 {
            font-size: 2.5rem;
        }

        .about img {
            width: 250px;
            height: 250px;
        }
    }

    @media (max-width: 1200px) {
        .navbar {
            flex-direction: column;
            padding: 10px;
        }

        .about, .research, .sample-data {
            padding: 80px 20px;
        }

        .card {
            width: 80%;
        }
    }

    @media (max-width: 1024px) {
        .home h1 {
            font-size: 2rem;
        }

        .about-text {
            max-width: 100%;
        }

        .card {
            width: 90%;
        }
    }

    @media (max-width: 768px) {
        .navbar a {
            font-size: 0.9rem;
            margin: 5px 0;
        }

        .home h1 {
            font-size: 1.5rem;
        }

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

        .home button {
            font-size: 0.9rem;
            padding: 8px 16px;
        }

        .research-cards {
            flex-direction: column;
            align-items: center;
        }
    }

    @media (max-width: 480px) {
        .home h1 {
            font-size: 1.2rem;
        }

        .about img {
            width: 200px;
            height: 200px;
        }

        .card {
            width: 100%;
        }
    }

    @media (max-width: 320px) {
        .home h1 {
            font-size: 1rem;
        }

        .about img {
            width: 150px;
            height: 150px;
        }
    }