/* 基本样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Open Sans', sans-serif;
        background: linear-gradient(135deg, #0F0F0F, #1C1C1C);
        color: #ffffff;
        line-height: 1.6;
        letter-spacing: 0.5px;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(15, 15, 15, 0.9);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 40px;
        z-index: 1000;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }

    .navbar .logo {
        font-family: 'Roboto Mono', monospace;
        font-size: 24px;
        font-weight: bold;
        color: #0074D9;
    }

    .navbar ul {
        list-style: none;
        display: flex;
        gap: 20px;
    }

    .navbar ul li a {
        text-decoration: none;
        color: #ffffff;
        transition: color 0.3s;
    }

    .navbar ul li a:hover {
        color: #8A2BE2;
    }

    /* 主内容 */
    .hero {
        height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover;
        position: relative;
        animation: floatBackground 10s infinite alternate ease-in-out;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(15, 15, 15, 0.6);
    }

    .hero-content {
        position: relative;
        text-align: center;
        z-index: 1;
    }

    .hero h1 {
        font-family: 'Roboto Mono', monospace;
        font-size: 48px;
        color: #0074D9;
        animation: floatText 3s infinite ease-in-out;
    }

    .hero p {
        font-size: 18px;
        margin-top: 20px;
        color: #ffffff;
    }

    /* 内容区域 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 80px 20px;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 40px;
    }

    .card {
        background: #1C1C1C;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    }

    .card img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    .card h3 {
        color: #8A2BE2;
        margin-bottom: 10px;
    }

    .card p {
        font-size: 16px;
    }

    /* 示例文章展示 */
    .article-section {
        padding: 60px 20px;
        background: #0F0F0F;
    }

    .article-section h2 {
        text-align: center;
        color: #0074D9;
        margin-bottom: 40px;
    }

    .article {
        max-width: 800px;
        margin: 0 auto;
        color: #ffffff;
    }

    .article h2, .article h3, .article h4 {
        color: #0074D9;
    }

    .article pre {
        background: #1C1C1C;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin: 20px 0;
    }

    .article code {
        font-family: 'Roboto Mono', monospace;
        color: #8A2BE2;
    }

    /* 提示信息 */
    .reference {
        text-align: center;
        padding: 20px;
        background: #1C1C1C;
        font-size: 18px;
        color: #ffffff;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

        .navbar ul {
            flex-direction: column;
            width: 100%;
        }

        .navbar ul li {
            width: 100%;
            text-align: left;
        }

        .hero h1 {
            font-size: 32px;
        }

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

    @media (max-width: 480px) {
        .hero h1 {
            font-size: 24px;
        }

        .navbar {
            padding: 10px 20px;
        }

        .navbar .logo {
            font-size: 20px;
        }
    }

    @keyframes floatText {
        0% { transform: translateY(0); }
        50% { transform: translateY(-5px); }
        100% { transform: translateY(0); }
    }

    @keyframes floatBackground {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }