.ggkg-card {
    max-width: 480px;
    margin: auto;
    background: linear-gradient(135deg,#d9f7e8,#ffffff);
    padding: 22px;
    border-radius: 18px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    font-family: Arial;
}
.ggkg-card input, .ggkg-card select, .ggkg-card button {
    width: 100%;
    margin-top: 10px;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #ccc;
}
.ggkg-card button {
    background: #4CAF50;
    color: white;
    cursor: pointer;
    transition: 0.3s;
}
.ggkg-card button:hover {
    background: #3c8c41;
}
.ggkg-result {
    margin-top: 20px;
    background: #f4f4f4;
    padding: 15px;
    border-radius: 10px;
}