/* ============================================
   产品详情/订阅/设置 — 产品页+订阅卡+套餐+设置表单+徽章
   从 style.css 拆分
   ============================================ */

/* ----- Product Image Carousel ----- */
.pd-carousel {
  margin: calc(-1 * var(--space-5)) calc(-1 * var(--space-5)) var(--space-4);
  position: relative;
}

.pd-carousel-track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  border-radius: 18px 18px 0 0;
}
.pd-carousel-track::-webkit-scrollbar { display: none; }

.pd-carousel-slide {
  flex: 0 0 100%;
  scroll-snap-align: start;
  aspect-ratio: 1 / 1;
  background: #F4F3F0;
}

.pd-carousel-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pd-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: var(--space-2) 0 0;
}

.pd-dot {
  width: 6px;
  height: 6px;
  border-radius: 3px;
  background: #D6D3CE;
  transition: all .25s ease;
}
.pd-dot.active {
  width: 18px;
  background: var(--color-primary);
}

.pd-carousel-arrow {
  position: absolute;
  top: calc(50% - 38px);
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  transition: background .2s;
}
.pd-carousel-arrow:active { background: rgba(0,0,0,.65); }
.pd-carousel-prev { left: 8px; }
.pd-carousel-next { right: 8px; }

/* ----- Product Detail (redesigned) ----- */
.pd-header {
  text-align: center;
  padding-bottom: var(--space-4);
}
.pd-category-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: 99px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.pd-name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin: 0 0 var(--space-1) 0;
}
.pd-brand {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pd-price-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-4);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.pd-price-main {
  flex: 1;
  text-align: center;
  min-width: 72px;
}
.pd-price-value {
  display: block;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}
.pd-price-value.pd-price-cost {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}
.pd-price-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}
.pd-margin-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  border-radius: 99px;
  background: #DCFCE7;
  color: #16A34A;
  font-size: var(--text-lg);
  font-weight: 700;
}
.pd-price-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
  flex-shrink: 0;
}

.pd-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-4);
}
.pd-info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-light);
}
.pd-info-item:last-child,
.pd-info-item:nth-last-child(2):nth-child(odd) {
  border-bottom: none;
}
.pd-info-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}
.pd-info-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 600;
}

.pd-section {
  margin-bottom: var(--space-4);
}
.pd-section-title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
}
.pd-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}
.pd-spec {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  background: var(--color-surface);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
}
.pd-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.pd-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  border-radius: 99px;
  font-size: var(--text-xs);
  font-weight: 600;
}
.pd-tag-warm { background: var(--color-primary-soft); color: var(--color-primary); }
.pd-tag-cool { background: #EEF2FF; color: #4F46E5; }
.pd-tag-green { background: #DCFCE7; color: #16A34A; }

.pd-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4) 0 var(--space-2);
}

/* Secondary button */
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  font-weight: 600;
}
.btn-secondary:active {
  background: var(--color-surface-hover);
  border-color: var(--color-text-muted);
}

/* ----- Subscription Info Card ----- */
.sub-info-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
}

.sub-info-grid {
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.sub-info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) 0;
}

.sub-info-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border-light);
  flex-shrink: 0;
}

.sub-info-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.sub-info-value {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
}

/* ----- Plan Cards ----- */
.plan-card {
  position: relative;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-3);
  text-align: center;
}

.plan-featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), 0 4px 16px rgba(249,115,22,.12);
}

.plan-ribbon {
  position: absolute;
  top: -1px;
  right: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  padding: 2px var(--space-4);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-size: 0.625rem;
  font-weight: 700;
}

.plan-current-tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  background: var(--color-success-bg);
  color: var(--color-success);
  padding: 1px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.625rem;
  font-weight: 700;
}

.plan-current {
  border-color: var(--color-success);
  background: var(--color-success-bg);
  opacity: 0.85;
}

.plan-name {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-top: var(--space-2);
  margin-bottom: var(--space-1);
}

.plan-price {
  margin-bottom: var(--space-1);
}

.plan-price-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.plan-price-unit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.plan-period-prices {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.plan-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--space-4);
}

.plan-features li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  padding: var(--space-1) 0;
}

.btn-disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ----- Period Option ----- */
.period-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.period-option:active {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
}

/* ----- Settings Form ----- */
.settings-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}
.form-input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  outline: none;
  transition: border-color 200ms;
  box-sizing: border-box;
}
.form-input:focus {
  border-color: var(--color-primary);
}

/* ----- Nav Badge ----- */
.nav-icon-badge-wrap {
  position: relative;
  display: inline-flex;
}
.nav-badge {
  position: absolute;
  top: -6px;
  right: -10px;
  min-width: 18px;
  height: 18px;
  border-radius: 99px;
  background: var(--color-danger);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  box-shadow: 0 2px 6px rgba(220,38,38,.35);
  pointer-events: none;
}

/* ----- Bell Badge (header) ----- */
.header-bell {
  position: relative;
}
.bell-badge {
  position: absolute;
  top: -4px;
  right: -6px;
  min-width: 18px;
  height: 18px;
  border-radius: 99px;
  background: var(--color-danger);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  box-shadow: 0 2px 6px rgba(220,38,38,.35);
  pointer-events: none;
}