.pi-box {
    margin: 30px 0;
    padding: 20px;
    background: #f7fafc;
    border-radius: 8px;
    box-shadow: 0 2px 10px #e8e8e8;
    text-align: center;
}
.pi-btn, .pi-submit-btn {
    background: #0880e8;
    color: #fff;
    padding: 10px 30px;
    border: none;
    border-radius: 5px;
    transition: background 0.2s;
    cursor: pointer;
    margin: 8px 0;
    font-size: 16px;
}
.pi-btn:hover, .pi-submit-btn:hover {
    background: #005eb8;
}
.pi-form input[type=password] {
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #ccc;
    width: 180px;
    margin-left: 8px;
    font-size: 15px;
}
.pi-content {
    margin-top: 20px;
    background: #fffbe2;
    border: 1px solid #ffecb2;
    border-radius: 6px;
    padding: 20px;
    color: #333;
    font-size: 1.08em;
    text-align: right;
}
.pi-msg {
    margin-top: 10px;
}