.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.modal-header {
    padding: 10px 16px;
    border-bottom: 1px solid #ddd;
}

.modal-title {
    font-size: 18px;
    font-weight: bold;
    color: #333;
}

.modal-body {
    padding: 20px 16px;
}

.modal-footer {
    padding: 10px 16px;
    border-top: 1px solid #ddd;
    text-align: right;
}

.modal-footer button {
    padding: 8px 16px;
    margin-left: 10px;
    border-radius: 5px;
    cursor: pointer;
}

.btn-confirm {
    background-color: #009bdd;
    color: white;
    border: none;
}

.btn-cancel {
    background-color: #f5f5f5;
    color: #333;
    border: 1px solid #ddd;
}

.region-selects-modal {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.region-selects-modal select {
    flex: 1;
    min-width: 150px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

/* 响应式调整 */
@media (max-width: 600px) {
    .region-selects-modal {
        flex-direction: column;
    }
    .region-selects-modal select {
        width: 100%;
    }
}