.pay-container {
    max-width: 400px;
    margin: 60px auto;
    padding: 30px;
    border: 1px solid #eee;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    background: #fafbfc;
}
h2 {
    text-align: center;
    color: #333;
}
label {
    display: inline-block;
    width: 80px;
    color: #555;
}
input, select {
    width: 220px;
    padding: 6px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
button {
    width: 100%;
    padding: 10px;
    background: #4caf50;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
}
button:hover {
    background: #388e3c;
}
#result {
    margin-top: 18px;
    text-align: center;
    color: #1976d2;
    font-weight: bold;
}

.footer {
    text-align: center;
    margin-top: 30px;
    padding: 15px 0;
}

.icp-info {
    color: #666;
    font-size: 0.9em;
    margin: 0;
    opacity: 0.8;
}