/* ============================================
   订阅支付页专用样式
   ============================================ */

.sub-main {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-2xl);
  min-height: calc(100vh - 64px);
}

/* --- 页面头部 --- */
.sub-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.sub-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sub-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- VIP特权 --- */
.vip-perks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.vip-perk {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.vip-perk:hover {
  border-color: rgba(255, 122, 26, 0.3);
  transform: translateY(-2px);
}

.vip-perk-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.vip-perk h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.vip-perk p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --- 订阅方案 --- */
.plans-section {
  margin-bottom: var(--space-xl);
}

.plans-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.plan-card {
  position: relative;
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  cursor: pointer;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.plan-card:hover {
  border-color: rgba(255, 122, 26, 0.4);
}

.plan-card.selected {
  border-color: var(--orange-primary);
  box-shadow: 0 0 30px rgba(255, 122, 26, 0.15);
}

.plan-card.popular::before {
  content: '推荐';
  position: absolute;
  top: 16px;
  right: -28px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-dark));
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 32px;
  transform: rotate(45deg);
}

.plan-card.selected .plan-check {
  opacity: 1;
  transform: scale(1);
}

.plan-check {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--orange-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  opacity: 0;
  transform: scale(0.5);
  transition: all var(--transition-normal);
}

.plan-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.plan-price-group {
  margin-bottom: var(--space-lg);
}

.plan-price {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--orange-primary);
}

.plan-price-symbol {
  font-size: 1.2rem;
  font-weight: 600;
}

.plan-price-unit {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 400;
}

.plan-original-price {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-left: var(--space-sm);
}

.plan-discount {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(255, 122, 26, 0.15);
  color: var(--orange-primary);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-left: var(--space-sm);
}

.plan-save {
  font-size: 0.82rem;
  color: var(--green-win);
  margin-top: var(--space-xs);
}

.plan-features {
  list-style: none;
}

.plan-features li {
  position: relative;
  padding: var(--space-xs) 0 var(--space-xs) var(--space-lg);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green-win);
  font-weight: 700;
}

/* --- 支付通道 --- */
.payment-section {
  margin-bottom: var(--space-xl);
}

.payment-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.payment-channels {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.payment-channel {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 24px;
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.92rem;
  font-weight: 500;
}

.payment-channel:hover {
  border-color: rgba(255, 122, 26, 0.3);
}

.payment-channel.selected {
  border-color: var(--orange-primary);
  background: rgba(255, 122, 26, 0.08);
}

.payment-channel.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.payment-channel-icon {
  font-size: 1.3rem;
}

.payment-channel-coming {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--navy-dark);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-left: var(--space-xs);
}

/* --- 支付操作区 --- */
.pay-action {
  text-align: center;
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--card-border);
}

.pay-summary {
  margin-bottom: var(--space-lg);
}

.pay-label {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.pay-price {
  font-size: 2rem;
  font-weight: 900;
  color: var(--orange-primary);
  margin-left: var(--space-sm);
}

.pay-btn {
  min-width: 240px;
  font-size: 1.1rem;
  padding: 16px 48px;
}

.pay-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  .vip-perks {
    grid-template-columns: repeat(2, 1fr);
  }

  .plans-grid {
    grid-template-columns: 1fr;
  }

  .payment-channels {
    flex-direction: column;
  }

  .payment-channel {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .vip-perks {
    grid-template-columns: 1fr;
  }
}