body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #1E272E, #2C3E50);
        color: #F5F5F5;
        line-height: 1.6;
        overflow-x: hidden;
    }
    header {
        position: relative;
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover;
        background-attachment: fixed;
        overflow: hidden;
    }
    header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(10px);
        z-index: 1;
    }
    header h1 {
        position: relative;
        z-index: 2;
        font-size: 4rem;
        color: #FFC300;
        text-shadow: 0 0 10px rgba(255, 195, 0, 0.8);
        animation: fadeIn 3s ease-in-out;
    }
    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(-20px); }
        to { opacity: 1; transform: translateY(0); }
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        margin-top: 20px;
    }
    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        backdrop-filter: blur(10px);
        padding: 20px;
        transition: transform 0.3s ease;
    }
    .card:hover {
        transform: scale(1.05);
    }
    .card img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 10px;
    }
    .highlight {
        background: linear-gradient(90deg, #34C759, #FFC300);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        font-weight: bold;
    }
    pre {
        background: rgba(0, 0, 0, 0.4);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }
    code {
        color: #FFC300;
        font-family: 'Courier New', monospace;
    }
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }
    table th, table td {
        border: 1px solid rgba(255, 255, 255, 0.2);
        padding: 10px;
        text-align: left;
    }
    table th {
        background: rgba(255, 195, 0, 0.2);
    }
    footer {
        background: #1E272E;
        color: #F5F5F5;
        text-align: center;
        padding: 20px;
        margin-top: 40px;
    }
    @media (max-width: 768px) {
        header h1 {
            font-size: 3rem;
        }
        .grid-container {
            grid-template-columns: 1fr;
        }
        pre {
            font-size: 14px;
        }
    }
    @media (max-width: 480px) {
        header h1 {
            font-size: 2rem;
        }
        .container {
            padding: 10px;
        }
    }