/* 弹窗独立样式 */
.modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.modal-box {
    background: #fff;
    padding: 32px;
    border-radius: 14px;
    position: relative;
    text-align: center;
    max-width: 360px;
    width: 90%;
}
.modal-close {
    position: absolute;
    top:12px;
    right:12px;
    border:none;
    background: transparent;
    font-size:22px;
    cursor:pointer;
    color:#666;
}
.qr-img {
    width: 220px;
    height: 220px;
    margin:16px auto;
    object-fit: contain;
}