body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #F5F5F5 0%, #E0E0E0 100%);
    color: #333;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}
header {
    background: linear-gradient(90deg, #0074D9, #32CD32);
    color: white;
    text-align: center;
    padding: 50px 20px;
    position: relative;
}
header h1 {
    font-size: 3rem;
    font-weight: bold;
    letter-spacing: 2px;
    margin: 0;
}
header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover;
    opacity: 0.1;
    z-index: -1;
}
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease;
}
.card:hover {
    transform: translateY(-10px);
}
.card img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-bottom: 1px solid #ddd;
}
.card-content {
    padding: 20px;
}
.card-title {
    font-size: 1.5rem;
    margin: 0 0 10px;
    color: #0074D9;
}
.card-text {
    color: #555;
    font-size: 1rem;
}
.button {
    background: linear-gradient(90deg, #FFA500, #FF6347);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.button:hover {
    background: linear-gradient(90deg, #FF6347, #FFA500);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.code-block {
    background: #282c34;
    color: #fff;
    padding: 15px;
    border-radius: 5px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    overflow-x: auto;
}
.table-container {
    overflow-x: auto;
    margin: 20px 0;
}
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid #ddd;
}
th {
    background: #0074D9;
    color: white;
}
td {
    color: #555;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    .card {
        margin-bottom: 20px;
    }
    table {
        font-size: 0.9rem;
    }
}