/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #000066, #4B0082);
        color: #ffffff;
        overflow-x: hidden;
    }

    /* 导航栏样式 */
    .nav-bar {
        position: fixed;
        top: 0;
        width: 100%;
        background-color: rgba(0, 0, 0, 0.7);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 30px;
        z-index: 1000;
    }

    .nav-bar a {
        color: #00FFAA;
        text-decoration: none;
        margin: 0 15px;
        font-family: 'Exo', sans-serif;
        transition: all 0.3s ease;
    }

    .nav-bar a:hover {
        text-decoration: underline;
        color: #00FFFF;
        box-shadow: 0 0 10px #00FFFF;
    }

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

    .hero-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
    }

    .hero-content {
        position: relative;
        z-index: 1;
        max-width: 800px;
        padding: 20px;
    }

    .hero-content h1 {
        font-family: 'Orbitron', sans-serif;
        font-size: 3em;
        margin-bottom: 20px;
        color: #00FFFF;
        text-shadow: 2px 2px 8px rgba(0, 255, 255, 0.7);
    }

    .hero-content p {
        font-size: 1.2em;
        line-height: 1.6;
    }

    /* 模块化内容区 */
    .content-section {
        padding: 60px 20px;
        background: linear-gradient(135deg, #4B0082, #000066);
    }

    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .grid-item {
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 20px;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .grid-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 20px rgba(0, 255, 170, 0.5);
    }

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

    .grid-item h3 {
        font-family: 'Orbitron', sans-serif;
        margin-bottom: 10px;
        color: #00FFFF;
    }

    .grid-item p {
        font-size: 1em;
        line-height: 1.5;
    }

    /* 示例数据展示 */
    .example-section {
        background: rgba(0, 0, 0, 0.8);
        padding: 40px 20px;
        margin: 60px 0;
    }

    .example-section h2 {
        text-align: center;
        font-family: 'Orbitron', sans-serif;
        color: #FF00FF;
        margin-bottom: 30px;
    }

    .example-content {
        max-width: 1000px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        overflow-x: auto;
    }

    .example-content pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .example-content code {
        color: #FFD700;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #00FFAA;
        color: #000;
        border-radius: 5px;
        text-decoration: none;
        font-family: 'Roboto', sans-serif;
        transition: background 0.3s ease;
    }

    .btn:hover {
        background: #00FFFF;
        box-shadow: 0 0 10px #00FFFF;
    }

    /* 提示信息 */
    .notice {
        text-align: center;
        padding: 20px;
        background: rgba(255, 255, 255, 0.1);
        margin: 40px 20px;
        border-radius: 10px;
        font-size: 1.2em;
        color: #FF69B4;
        font-family: 'Exo', sans-serif;
    }

    /* 适应不同屏幕尺寸 */
    @media (max-width: 1440px) {
        .hero-content h1 {
            font-size: 2.5em;
        }

        .content-section {
            padding: 50px 15px;
        }
    }

    @media (max-width: 1200px) {
        .grid-container {
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
    }

    @media (max-width: 1024px) {
        .nav-bar {
            padding: 10px 20px;
        }

        .hero-content h1 {
            font-size: 2em;
        }
    }

    @media (max-width: 768px) {
        .hero-content h1 {
            font-size: 1.5em;
        }

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

    @media (max-width: 480px) {
        .nav-bar a {
            margin: 0 10px;
            font-size: 0.9em;
        }

        .hero-content p {
            font-size: 1em;
        }

        .grid-item h3 {
            font-size: 1.2em;
        }

        .btn {
            padding: 8px 16px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        .nav-bar {
            flex-direction: column;
        }

        .nav-bar a {
            margin: 5px 0;
        }

        .hero-content h1 {
            font-size: 1.2em;
        }

        .notice {
            font-size: 1em;
        }
    }