.checkout-container {
    max-width: 900px;
    margin: 30px auto;
}

.checkout-container .card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    margin-bottom: 20px;
}

.checkout-container .card-header {
    background-color: #fff;
    font-weight: bold;
    border-bottom: 1px solid #f8f9fa;
}

.upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-area:hover {
    border-color: #0d6efd;
    background-color: #f8f9fa;
}

.upload-area-min {
    min-height: 100px;
}

.preview-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.preview-item {
    position: relative;
    width: 100px;
    height: 100px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-item-pdf {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    color: #6c757d;
    padding: 10px;
    text-align: center;
    font-size: 12px;
}

.remove-btn {
    position: absolute;
    top: 0;
    right: 0;
    background: rgba(220, 53, 69, 0.85);
    color: #fff;
    border: none;
    font-size: 12px;
    padding: 0 5px;
    cursor: pointer;
}

.proxy-upload-box {
    width: 100px;
    height: 100px;
    cursor: pointer;
    background: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.proxy-pdf-notice {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #fff;
    text-align: center;
}

.checkout-summary-sticky {
    top: 100px;
}

.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.modal-header {
    border-bottom: 1px solid #f0f0f0;
    padding: 20px 24px;
}

.modal-title {
    font-weight: 700;
    color: #333;
}

.payment-summary {
    background: #f8fbff;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 24px;
    border: 1px solid #eef4ff;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 14px;
    gap: 16px;
}

.summary-item:last-child {
    margin-bottom: 0;
}

.summary-label {
    color: #666;
}

.summary-value {
    color: #333;
    font-weight: 500;
    text-align: right;
}

.payment-methods .list-group-item {
    border: 1px solid #eee;
    border-radius: 10px !important;
    margin-bottom: 12px;
    padding: 16px;
    transition: all 0.2s;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.payment-methods .list-group-item:hover {
    border-color: #0d6efd;
    background-color: #f6faff;
}

.payment-methods .form-check-input {
    width: 22px;
    height: 22px;
    margin-top: 0;
    cursor: pointer;
}

.payment-methods .list-group-item.active-pay {
    border-color: #0d6efd;
    background-color: #f6faff;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.total-pay {
    border-top: 1px dashed #d0d7de;
    margin-top: 12px;
    padding-top: 12px;
}

.total-pay-price {
    color: #dc3545;
    font-size: 24px;
    font-weight: 700;
}

.download-template-btn {
    font-size: 12px;
}

.checkout-wechat-qrcode-layer {
    width: fit-content;
    min-height: 200px;
}