/* ============================================================
   newcart · 分类 / 可用区 现代化样式层
   与旧 topbar.css 并存，仅接管新组件 ct-nav / ct-zone / ct-headline
   主色沿用品牌蓝 #0e62ff，响应式断点 768px
   ============================================================ */

:root {
  --nc-primary:      #0e62ff;
  --nc-primary-weak: #eef4ff;
  --nc-primary-deep: #0a4fd8;
  --nc-text:         #1f2937;
  --nc-text-2:       #6b7280;
  --nc-line:         #e5e7eb;
  --nc-bg:           #f5f7fa;
  --nc-card:         #ffffff;
  --nc-radius:       12px;
  --nc-radius-sm:    8px;
  --nc-radius-pill:  999px;
  --nc-shadow:       0 1px 2px rgba(16,24,40,.04), 0 8px 24px rgba(16,24,40,.05);
  --nc-transition:   all .18s ease;
}

/* ---------- 一级分类：白卡 + 胶囊 Tab ---------- */
.ct-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--nc-card);
  border: 1px solid var(--nc-line);
  border-radius: var(--nc-radius);
  padding: 10px 14px;
  box-shadow: var(--nc-shadow);
  margin-bottom: 12px;
}

.ct-nav__label {
  flex: 0 0 auto;
  color: var(--nc-primary);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.ct-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.ct-nav__item {
  flex: 0 0 auto;
  padding: 8px 18px;
  border-radius: var(--nc-radius-pill);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--nc-text-2);
  background: #f8fafc;
  border: 1px solid transparent;
  text-decoration: none !important;
  white-space: nowrap;
  transition: var(--nc-transition);
}

.ct-nav__item:hover {
  color: var(--nc-primary);
  background: var(--nc-primary-weak);
}

.ct-nav__item.is-active {
  color: #fff;
  background: var(--nc-primary);
  box-shadow: 0 4px 12px rgba(14,98,255,.28);
}

.ct-nav__item:focus-visible {
  outline: 2px solid var(--nc-primary);
  outline-offset: 2px;
}

/* ---------- 二级分类：可用区 Chip ---------- */
.ct-zone {
  background: var(--nc-card);
  border: 1px solid var(--nc-line);
  border-radius: var(--nc-radius);
  padding: 12px 14px;
  box-shadow: var(--nc-shadow);
  margin-bottom: 12px;
}

.ct-zone__head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
}

.ct-zone__label {
  color: var(--nc-primary);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.ct-zone__count {
  color: var(--nc-text-2);
  font-size: 12px;
}

.ct-zone__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ct-zone__chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--nc-radius-pill);
  font-size: 13px;
  line-height: 1.4;
  color: var(--nc-text-2);
  background: #f8fafc;
  border: 1px solid transparent;
  text-decoration: none !important;
  white-space: nowrap;
  transition: var(--nc-transition);
}

.ct-zone__chip:hover {
  transform: translateY(-1px);
  color: var(--nc-primary);
  background: var(--nc-primary-weak);
  box-shadow: 0 4px 10px rgba(16,24,40,.08);
}

.ct-zone__chip.is-active {
  border-color: var(--nc-primary);
  background: var(--nc-primary-weak);
  color: var(--nc-primary);
  font-weight: 600;
}

.ct-zone__chip.is-active::after {
  content: '✓';
  position: absolute;
  top: -6px;
  right: -4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--nc-primary);
  color: #fff;
  font-size: 10px;
  line-height: 16px;
  text-align: center;
}

.ct-zone__chip:focus-visible {
  outline: 2px solid var(--nc-primary);
  outline-offset: 2px;
}

.ct-zone__flag {
  width: auto;
  height: 18px;
  border-radius: 2px;
  box-shadow: 0 1px 1px rgba(0,0,0,.15);
}

.ct-zone__name {
  display: inline-block;
}

/* ---------- 产品介绍条 ---------- */
.ct-headline {
  background: var(--nc-card);
  border: 1px solid var(--nc-line);
  border-left: 3px solid var(--nc-primary);
  border-radius: var(--nc-radius);
  padding: 14px 16px;
  box-shadow: var(--nc-shadow);
  margin-bottom: 12px;
}

.ct-headline__label {
  color: var(--nc-primary);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.ct-headline__body {
  color: var(--nc-text-2);
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 空提示/产品介绍 callout 与卡片体系统一 ---------- */
.panyi-callout {
  border-radius: var(--nc-radius);
  box-shadow: var(--nc-shadow);
}

/* ---------- 区域最低价锚点 ---------- */
.ct-zone__price {
  margin-left: auto;
  color: var(--nc-text-2);
  font-size: 12px;
  white-space: nowrap;
}

.ct-zone__price b {
  color: var(--nc-primary);
  font-weight: 700;
  font-family: "TCloudNumber", -apple-system, sans-serif;
}

/* ---------- 可用区状态徽标 ----------
   数据来源：后台 product_groups.badge 字段
   约定值：hot / new / low（兼容中文 热销 / 新上 / 库存紧张），
   字段未下发时不渲染，不影响布局 */
.ct-zone__badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: var(--nc-radius-pill);
  font-size: 11px;
  line-height: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--nc-text-2);
  white-space: nowrap;
}

.ct-zone__badge.is-hot {
  background: linear-gradient(135deg, #f97316, #ef4444);
}

.ct-zone__badge.is-new {
  background: linear-gradient(135deg, #22c55e, #059669);
}

.ct-zone__badge.is-low {
  color: #b45309;
  background: #fef3c7;
}

/* ---------- 移动端：全部显示，触控目标 ≥ 36px ---------- */
@media (max-width: 768px) {
  .ct-nav {
    padding: 8px 12px;
    border-radius: var(--nc-radius-sm);
  }

  .ct-nav__item {
    min-height: 36px;
    padding: 7px 14px;
    font-size: 13px;
  }

  .ct-zone {
    padding: 10px 12px;
    border-radius: var(--nc-radius-sm);
  }

  .ct-zone__chip {
    flex: 0 0 auto;
    min-height: 36px;
  }

  .ct-zone__price {
    font-size: 11px;
  }

  .ct-zone__badge {
    font-size: 10px;
    padding: 0 5px;
  }
}

/* ---------- 弱化动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .ct-nav__item,
  .ct-zone__chip {
    transition: none;
  }
}