.logistics-box {
    max-width: 500px;
    margin: auto;
    padding: 25px;
    border-radius: 12px;
    background: #ffffff;
    text-align: center;
}
#logistics-input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #aaa;
}
button {
    margin-top: 12px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    background: #0066ff;
    color: white;
    cursor: pointer;
}
#logistics-result {
    margin-top: 20px;
    text-align: left;
}