body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #C6EFCB, #F5F5F5);
        margin: 0;
        padding: 0;
        color: #333;
        line-height: 1.7;
        overflow-x: hidden;
    }
    h1, h2, h3 {
        font-family: 'Poppins', sans-serif;
        font-weight: bold;
        color: #34A853;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }
    header {
        text-align: center;
        background: radial-gradient(circle, #34A853, transparent);
        padding: 50px 20px;
        position: relative;
        overflow: hidden;
    }
    header h1 {
        color: #fff;
        font-size: 2.5rem;
        margin: 0;
    }
    header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 200%;
        height: 100%;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover;
        opacity: 0.2;
        transform: rotate(-20deg);
        animation: aurora-move 15s linear infinite;
    }
    @keyframes aurora-move {
        0% { transform: translateX(-50%) rotate(-20deg); }
        100% { transform: translateX(0) rotate(-20deg); }
    }
    .section {
        background: #fff;
        margin: 20px 0;
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
        position: relative;
    }
    .section::after {
        content: '';
        position: absolute;
        bottom: -10px;
        left: 50%;
        width: 80%;
        height: 2px;
        background: linear-gradient(to right, #C6EFCB, #4285F4);
        transform: translateX(-50%);
    }
    .section img {
        max-width: 100%;
        border-radius: 8px;
        margin: 15px 0;
    }
    pre {
        background: #F5F5F5;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
    }
    code {
        color: #4285F4;
        font-family: 'Courier New', monospace;
    }
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }
    th, td {
        border: 1px solid #ddd;
        padding: 10px;
        text-align: center;
    }
    th {
        background: #C6EFCB;
        color: #333;
    }
    tr:nth-child(even) {
        background: #f9f9f9;
    }
    .button {
        display: inline-block;
        background-color: #34A853;
        color: #fff;
        padding: 10px 20px;
        border-radius: 5px;
        text-decoration: none;
        transition: all 0.3s ease;
    }
    .button:hover {
        transform: scale(1.05);
        background-color: #2e7d32;
    }
    footer {
        text-align: center;
        padding: 20px;
        background: #34A853;
        color: #fff;
        margin-top: 40px;
    }
    @media (max-width: 768px) {
        header h1 {
            font-size: 2rem;
        }
        .section {
            padding: 20px;
        }
    }
    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5rem;
        }
        .section::after {
            display: none;
        }
    }