:root {
  --primary-color: #2196F3;
  --primary-dark: #1976D2;
  --secondary-color: #4CAF50;
  --accent-color: #FF9800;
  --text-dark: #212121;
  --text-light: #757575;
  --bg-light: #F5F7FA;
  --bg-white: #FFFFFF;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --white: #ffffff;
  --text-muted: #6c757d;
  --border-color: #dee2e6;
  --gradient-primary: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
  --success-color: #28a745;
  --warning-color: #ffc107;
  --alipay-color: #1677ff;
  --wechat-color: #07c160;
}

/* 三栏版本 + 下方套餐 */
.edition-merge-card .edition-tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.edition-tier {
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--white);
  position: relative;
}

.edition-tier:hover:not(.disabled):not(.selected) {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.edition-tier.selected {
  border-color: var(--primary-color);
  background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
  box-shadow: var(--shadow-md);
}

.edition-tier.disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: #f5f5f5;
}

.edition-tier-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}

.edition-tier .level-features {
  text-align: left;
  margin-top: 0;
  font-size: 0.88rem;
}

.edition-tier .level-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.edition-tier .level-features li {
  padding: 0.35rem 0;
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.edition-tier .level-features li i {
  color: var(--success-color);
  margin-right: 0.5rem;
  font-size: 0.875rem;
}

.tier-packages-wrap {
  min-height: 120px;
}

.tier-packages {
  display: none;
}

.tier-packages.active {
  display: block;
}

.custom-tier-hint {
  text-align: center;
  padding: 2rem 1.5rem;
  background: #f8f9fa;
  border-radius: 12px;
  border: 1px dashed var(--border-color);
}

.custom-tier-hint a {
  color: var(--primary-color);
  font-weight: 600;
}

.payment-block-muted {
  opacity: 0.55;
  pointer-events: none;
}

/* 支付二维码弹窗（由 static/js/package_picker.js 注入） */
.payment-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.payment-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(5px);
}

.payment-modal-content {
  position: relative;
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  max-width: 520px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  z-index: 10000;
}

.payment-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #e9ecef;
}

.payment-modal-header h3 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-dark);
}

.payment-modal-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0;
  width: 30px;
  height: 30px;
}

.payment-modal-close:hover {
  color: var(--text-dark);
}

.qr-code-container {
  text-align: center;
  margin: 1rem 0;
  padding: 0.75rem;
  background: #f8f9fa;
  border-radius: 8px;
}

.qr-code-image {
  max-width: 240px;
  height: auto;
  border: 2px solid #e9ecef;
  border-radius: 8px;
}

.payment-info {
  margin: 1rem 0;
  padding: 0.75rem;
  background: #f8f9fa;
  border-radius: 8px;
}

.payment-info p {
  margin: 0.4rem 0;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.payment-tip {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem !important;
}

.qr-expire-info {
  text-align: center;
  margin-top: 0.75rem;
  padding: 0.6rem;
  background: #fff3cd;
  border-radius: 8px;
  color: #856404;
  font-size: 0.875rem;
}

.qr-expire-timer {
  font-weight: 600;
  color: #d9534f;
  font-size: 1rem;
}

.btn-refresh-qr {
  margin-top: 0.75rem;
  width: 100%;
  padding: 0.6rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.btn-refresh-qr:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.btn-refresh-qr:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.payment-status {
  margin: 1.5rem 0;
  text-align: center;
}

.status-loading,
.status-success,
.status-failed {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
}

.status-loading {
  background: #e3f2fd;
  color: var(--primary-color);
}

.status-success {
  background: #e8f5e9;
  color: var(--success-color);
}

.status-failed {
  background: #ffebee;
  color: #f44336;
}

.payment-modal-footer {
  margin-top: 1.5rem;
  text-align: center;
}

/* 套餐卡片（复用 topup 的样式） */
.package-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.package-option {
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--white);
  position: relative;
}

.package-option:hover {
  border-color: var(--primary-color);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.package-option.selected {
  border-color: var(--primary-color);
  background: #f0f7ff;
}

.package-option.new-user {
  border-color: var(--warning-color);
  background: linear-gradient(135deg, #fff8e1 0%, #ffffff 100%);
}

.package-option.new-user::before {
  content: '新用户专享';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--warning-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.package-option.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: #f5f5f5;
  transform: none !important;
  box-shadow: none !important;
}

.package-amount {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.package-reports {
  font-size: 1.1rem;
  color: var(--text-dark);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.package-price-per-report {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.package-savings {
  font-size: 0.875rem;
  color: var(--success-color);
  margin-top: 0.5rem;
  font-weight: 500;
}

/* 支付方式 */
.payment-methods {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.payment-method {
  flex: 1;
  min-width: 200px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.payment-method:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.payment-method.selected {
  border-color: var(--primary-color);
  background: #f0f7ff;
}

.payment-method.alipay.selected {
  border-color: var(--alipay-color);
  background: #e6f4ff;
}

.payment-method.wechat.selected {
  border-color: var(--wechat-color);
  background: #e6f7ed;
}

.payment-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.payment-method.alipay .payment-icon {
  color: var(--alipay-color);
}

.payment-method.wechat .payment-icon {
  color: var(--wechat-color);
}

.payment-name {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-dark);
}

/* 订单摘要 + 按钮 */
.order-summary {
  background: #f8f9fa;
  border-radius: 12px;
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child {
  border-bottom: none;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-color);
}

.summary-label {
  color: var(--text-muted);
}

.summary-value {
  color: var(--text-dark);
  font-weight: 500;
}

.pay-button {
  width: 100%;
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.pay-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pay-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.pay-button.alipay {
  background: linear-gradient(135deg, var(--alipay-color) 0%, #4096ff 100%);
}

.pay-button.wechat {
  background: linear-gradient(135deg, var(--wechat-color) 0%, #36cf7c 100%);
}

@media (max-width: 992px) {
  .edition-merge-card .edition-tiers-grid {
    grid-template-columns: 1fr;
  }
  .package-options {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .package-options {
    grid-template-columns: 1fr;
  }
  .payment-methods {
    flex-direction: column;
  }
  .payment-method {
    min-width: 100%;
  }
}