/* ===================================================
   CATALOG PAGES — 東光醫療器材 商品目錄
   延伸 intro.css 的設計語彙：米色底、橘色主色、圓角卡片
   （行動優先，桌機以 min-width 逐步增強）
   =================================================== */

/* ── Page scaffold ── */
.cat-main {
  padding-top: var(--header-total); /* fixed header + infobar */
  flex: 1;
}

.cat-section {
  padding: 36px 16px 56px;
}

.cat-container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ── Breadcrumb ── */
.cat-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.cat-breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.cat-breadcrumb a:hover {
  color: var(--color-primary);
}

.cat-breadcrumb .cat-bc-sep {
  color: var(--color-border);
  user-select: none;
}

.cat-breadcrumb .cat-bc-current {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ── Page heading ── */
.cat-page-head {
  text-align: center;
  margin-bottom: 32px;
}

.cat-page-head .intro-heading-label {
  margin-bottom: 10px;
}

.cat-page-head h1 {
  font-family: var(--font-heading);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: 10px;
}

.cat-page-head p {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.85;
}

/* ── Search box (catalog overview) ── */
.cat-search {
  max-width: 480px;
  margin: 0 auto 36px;
  position: relative;
}

.cat-search input {
  width: 100%;
  padding: 11px 16px 11px 42px;
  font-size: 15px;
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.cat-search input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.cat-search svg {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* ── Category chips nav ── */
.cat-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 36px;
}

.cat-chip {
  display: inline-block;
  padding: 6px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.cat-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-pale);
}

.cat-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ── Category block on overview ── */
.cat-cat-block {
  margin-bottom: 44px;
}

.cat-cat-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary-pale);
}

.cat-cat-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(18px, 2.6vw, 22px);
  font-weight: 700;
  color: var(--color-text-primary);
}

.cat-cat-head h2 a {
  color: inherit;
  text-decoration: none;
}

.cat-cat-head h2 a:hover {
  color: var(--color-primary);
}

.cat-cat-head .cat-cat-sub {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-left: 8px;
  font-weight: 400;
}

.cat-cat-more {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

.cat-cat-more:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Product grid & cards ── */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.cat-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.cat-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.cat-card-photo {
  aspect-ratio: 4 / 3;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  border-bottom: 1px solid var(--color-border-light);
  overflow: hidden;   /* hover 放大時不外溢 */
}

.cat-card-photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.cat-card:hover .cat-card-photo img {
  transform: scale(1.07);
}

.cat-card-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.cat-card-body h3 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.cat-card-brand {
  font-size: 12px;
  color: var(--color-text-muted);
}

.cat-card-price {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: auto;
  padding-top: 6px;
}

.cat-card-price.cat-price-ask {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

/* ── Tag chips ── */
.cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 6px;
}

.cat-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary-dark);
  background: var(--color-primary-pale);
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
  padding: 1px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* ── 租賃／補助標記：與一般標籤同列同尺寸，僅以顏色深淺區分 ── */
.cat-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* 可租賃＝業務重點：實心橘底白字，靠深淺與其他淡底徽章區分 */
.cat-badge-rent {
  color: #fff;
  background: var(--color-primary);
  border: 1px solid var(--color-primary-dark);
}

.cat-badge-subsidy,
.cat-badge-online {
  color: var(--color-primary-dark);
  background: var(--color-primary-pale);
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
}

.cat-badge-note {
  color: var(--color-text-secondary);
  background: var(--color-border-light);
  border: 1px solid var(--color-border);
}

/* ── 商品頁：提供方式資訊 ── */
.cat-offer-rows {
  margin: 16px 0 0;
  padding: 14px 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-primary);
}

.cat-offer-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.cat-offer-label {
  flex-shrink: 0;
  min-width: 4em;
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ── 租賃專區說明 ── */
.cat-rental-note {
  margin: 0 0 28px;
  padding: 14px 18px;
  background: rgba(var(--color-primary-rgb), 0.16);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md, 8px) var(--radius-md, 8px) 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-primary);
}

.cat-rental-note p {
  margin: 0;
}

/* ── Empty state ── */
.cat-empty {
  text-align: center;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 20px;
  color: var(--color-text-secondary);
  font-size: 15px;
  line-height: 1.9;
}

.cat-empty a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.cat-empty a:hover {
  text-decoration: underline;
}

/* ── Product detail page ── */
.cat-product-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 44px;
}

/* Gallery */
.cat-gallery-main {
  aspect-ratio: 4 / 3;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow: hidden;
}

.cat-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.cat-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.cat-gallery-thumbs button {
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 4px;
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.cat-gallery-thumbs button.active,
.cat-gallery-thumbs button:hover {
  border-color: var(--color-primary);
}

.cat-gallery-thumbs img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.cat-photo-note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 8px;
  text-align: center;
}

/* Info column */
.cat-product-info h1 {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.45;
  margin-bottom: 8px;
}

.cat-product-brand {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 14px;
}

.cat-product-brand strong {
  color: var(--color-text-primary);
}

.cat-product-price {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
  line-height: 1.3;
}

.cat-product-price.cat-price-ask {
  font-size: 20px;
  color: var(--color-text-secondary);
}

.cat-price-note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.cat-product-info .cat-tags {
  margin: 0 0 22px;
}

.cat-product-info .cat-tag {
  font-size: 12px;
  padding: 3px 12px;
}

/* CTA */
.cat-cta {
  margin-top: 18px;
}

.cat-cta-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* 兩顆按鈕等寬等高，主次以填色／外框區分 */
.cat-cta-actions > a {
  flex: 1 1 0;
  min-width: 150px;
  height: 50px;
}

.cat-cta-call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(var(--color-primary-rgb), 0.30);
  transition: background var(--transition-fast);
}

.cat-cta-call:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

/* 蝦皮下單：次要動作，用外框樣式讓電話仍是主要 CTA */
.cat-cta-shopee {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.cat-cta-shopee:hover {
  background: var(--color-primary);
  color: #fff;
}

.cat-cta-sub {
  margin-top: 10px;
  font-size: 12px;
  color: var(--color-text-muted);
}

/* Description & specs */
.cat-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 22px 20px;
  margin-bottom: 24px;
}

.cat-block > h2 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text-primary);
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--color-primary-pale);
}

.cat-desc {
  color: var(--color-text-secondary);
  line-height: 1.95;
  font-size: 15px;
}

.cat-desc p {
  margin-bottom: 12px;
}

.cat-desc p:last-child {
  margin-bottom: 0;
}

.cat-desc ul,
.cat-desc ol {
  margin: 0 0 12px 4px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cat-desc ul li {
  position: relative;
  padding-left: 18px;
  list-style: none;
}

.cat-desc ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.75em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

.cat-desc ol {
  counter-reset: cat-ol;
}

.cat-desc ol li {
  position: relative;
  padding-left: 24px;
  list-style: none;
  counter-increment: cat-ol;
}

.cat-desc ol li::before {
  content: counter(cat-ol) ".";
  position: absolute;
  left: 2px;
  color: var(--color-primary);
  font-weight: 700;
}

.cat-desc strong {
  color: var(--color-text-primary);
}

/* Spec table */
.cat-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.cat-spec-table th,
.cat-spec-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
  line-height: 1.6;
  vertical-align: top;
}

.cat-spec-table tr:last-child th,
.cat-spec-table tr:last-child td {
  border-bottom: none;
}

.cat-spec-table th {
  width: 140px;
  white-space: nowrap;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.cat-spec-table td {
  color: var(--color-text-primary);
}

/* 可選規格與價格：與固定屬性同卡，故以底線分隔而非另開一張卡 */
.cat-variant-table {
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.cat-variant-table thead th {
  width: auto;
  background: none;
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 6px;
}

.cat-variant-table thead th:last-child,
.cat-variant-table tbody td {
  text-align: right;
}

.cat-variant-table tbody th {
  width: auto;
  white-space: normal;
  background: none;
  color: var(--color-text-primary);
  font-weight: 500;
}

.cat-variant-table tbody td {
  color: var(--color-primary);
  font-weight: 700;
  white-space: nowrap;
}

/* 法定標示：查證用的小字，刻意不搶版面 */
.cat-legal h2 {
  font-size: 15px;
}

.cat-legal-body {
  font-size: 12px;
  line-height: 1.9;
  color: var(--color-text-secondary);
}

/* 販售藥商資訊：每頁相同，但與商品自己的標示同一組資料，字級顏色一致 */
.cat-legal-store {
  margin-top: 8px;
  color: inherit;
}

/* Related products */
.cat-related h2 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary-pale);
}

/* ── Desktop enhancements ── */
@media (min-width: 640px) {
  .cat-section {
    padding: 44px 24px 64px;
  }

  .cat-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .cat-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .cat-product-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 40px;
    align-items: start;
  }

  .cat-cta-call {
    width: auto;
    min-width: 260px;
  }
}


/* ── 商品主圖：方形放大鏡 ── */
.cat-gallery-main {
  position: relative;
}

.cat-zoom-lens {
  display: none;
  position: absolute;
  width: 190px;
  height: 190px;
  border: 2px solid var(--color-primary);
  background-color: #fff;
  background-repeat: no-repeat;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
  pointer-events: none;
  z-index: 10;
}

/* ── Lightbox（點圖放大） ── */
.cat-lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: rgba(20, 10, 4, 0.92);
  cursor: zoom-out;
}

.cat-lightbox.open {
  display: flex;
}

.cat-lightbox img {
  width: min(86vw, 860px);
  height: auto;
  max-height: 90vh;
  object-fit: contain;
  background: #fff;
  padding: 8px;
}

.cat-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #fff;
  font-size: 60px;
  line-height: 1;
  padding: 12px 20px;
  cursor: pointer;
  opacity: 0.85;
  user-select: none;
}

.cat-lightbox-nav:hover {
  opacity: 1;
}

.cat-lightbox-nav:focus:not(:focus-visible),
.cat-lightbox-close:focus:not(:focus-visible) {
  outline: none;
}

.cat-lightbox-nav:focus-visible,
.cat-lightbox-close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}

.cat-lightbox-prev { left: 6px; }
.cat-lightbox-next { right: 6px; }

.cat-lightbox-close {
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: 36px;
  line-height: 1;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
}