/**
 * AKSRT Product Page — zibll-aligned
 *
 * 包含：商品详情页 + 前台商品编辑器
 */

.aksrt-product-page,
.aksrt-product-editor {
  padding: 28px 0 56px;
}

.aksrt-product-page__layout,
.aksrt-product-page__detail-grid,
.aksrt-product-editor__layout,
.aksrt-product-editor__columns,
.aksrt-product-page__details,
.aksrt-product-page__actions {
  display: grid;
  gap: 20px;
}

.aksrt-product-page__layout,
.aksrt-product-editor__layout {
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  align-items: start;
}

.aksrt-product-page__detail-grid {
  grid-template-columns: minmax(0, 1fr) 320px;
  margin-top: 24px;
}

/* ===== Panel surfaces ===== */
.aksrt-product-page__panel,
.aksrt-product-editor__panel {
  background: var(--surface-1);
  border: none;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-2xl, 16px);
  padding: 20px;
}

.aksrt-product-page__title,
.aksrt-product-editor__title {
  margin: 0 0 10px;
  font-size: 30px;
  line-height: 1.1;
  font-weight: 700;
  color: var(--color-ink);
}

.aksrt-product-page__gallery,
.aksrt-product-editor__main,
.aksrt-product-editor__sidebar,
.aksrt-product-page__summary,
.aksrt-product-page__side-panels {
  display: grid;
  gap: 18px;
}

/* ===== Gallery ===== */
.aksrt-product-page__primary-image,
.aksrt-product-page__placeholder {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-2);
}

.aksrt-product-page__primary-image img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.aksrt-product-page__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  font-size: 56px;
  color: var(--color-ink-4);
}

.aksrt-product-page__thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  gap: 10px;
}

.aksrt-product-page__thumb {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0;
  background: var(--surface-1);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease);
}

.aksrt-product-page__thumb:hover,
.aksrt-product-page__thumb.is-active {
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-line, #e5e7eb));
}

.aksrt-product-page__thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}


.aksrt-product-page__service-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 4px;
}

.aksrt-product-page__service-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--surface-4);
  color: var(--color-ink-3);
  font-size: 12px;
  font-weight: 500;
}
.aksrt-product-page__price-row,
.aksrt-product-page__quantity,
.aksrt-product-page__term-list,
.aksrt-product-editor__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.aksrt-product-page__badge,
.aksrt-product-page__term {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  background: var(--surface-4);
  color: var(--color-ink-2);
  font-size: 12px;
  font-weight: 500;
}

.aksrt-product-page__badge--promo {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-error);
}

.aksrt-product-page__price {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-error);
  line-height: 1;
}

.aksrt-product-page__sales {
  font-size: 13px;
  color: var(--color-ink-4);
}

/* ===== Sticky buybox (zibll-aligned) ===== */
.aksrt-product-page__summary {
  position: sticky;
  top: calc(var(--nav-height) + 16px);
}

/* ===== Meta info blocks ===== */
.aksrt-product-page__meta,
.aksrt-product-page__info-list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.aksrt-product-page__meta div,
.aksrt-product-page__detail-block {
  padding: 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--surface-4);
}

.aksrt-product-page__meta dt {
  font-size: 12px;
  color: var(--color-ink-4);
  margin-bottom: 4px;
}

.aksrt-product-page__meta dd {
  margin: 0;
  font-size: 14px;
  color: var(--color-ink);
  font-weight: 500;
}

/* ===== Form fields ===== */
.aksrt-product-page__field,
.aksrt-product-editor__field {
  display: grid;
  gap: 8px;
}

.aksrt-product-page__input,
.aksrt-product-editor__input,
.aksrt-product-editor__textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 11px 14px;
  background: var(--surface-1);
  font-size: 14px;
  color: var(--color-ink);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.aksrt-product-page__input:focus,
.aksrt-product-editor__input:focus,
.aksrt-product-editor__textarea:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-line, #e5e7eb));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 18%, transparent);
}

/* ===== Quantity controls ===== */
.aksrt-product-page__qty-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
  color: var(--color-ink-2);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.aksrt-product-page__qty-btn:hover {
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-line, #e5e7eb));
  background: var(--color-primary-softer);
}

.aksrt-product-page__qty-input {
  width: 90px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  text-align: center;
  font-size: 14px;
  color: var(--color-ink);
}

/* ===== Content ===== */
.aksrt-product-page__content {
  line-height: 1.8;
  color: var(--color-ink-2);
}

.aksrt-product-page__content img {
  max-width: 100%;
  border-radius: var(--radius);
}

/* ===== Empty state ===== */
.aksrt-product-page__empty,
.aksrt-product-editor__empty {
  text-align: center;
  padding: 48px 20px;
}

.aksrt-product-page__empty i,
.aksrt-product-editor__empty i {
  display: block;
  font-size: 44px;
  color: var(--color-ink-4);
  margin-bottom: 12px;
}

.aksrt-product-editor__checkbox {
  display: flex;
  gap: 10px;
  align-items: center;
}

.aksrt-product-editor__sidebar {
  position: sticky;
  top: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .aksrt-product-page__layout,
  .aksrt-product-page__detail-grid,
  .aksrt-product-editor__layout,
  .aksrt-product-editor__columns,
  .aksrt-product-page__details {
    grid-template-columns: 1fr;
  }

  .aksrt-product-page__summary {
    position: static;
  }

  .aksrt-product-editor__sidebar {
    position: static;
  }
}

@media (max-width: 767px) {
  .aksrt-product-page__title,
  .aksrt-product-editor__title {
    font-size: 22px;
  }

  .aksrt-product-page__thumbs {
    gap: 6px;
  }

  .aksrt-product-page__spec-values {
    flex-wrap: wrap;
  }

  .aksrt-product-page__actions {
    grid-template-columns: 1fr;
  }

  .aksrt-product-page__actions .btn-lg,
  .aksrt-product-editor__actions .btn-lg {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .aksrt-product-page,
  .aksrt-product-editor {
    padding: 16px 0 40px;
  }

  .aksrt-product-page__price {
    font-size: 24px;
  }

  .aksrt-product-page__meta {
    grid-template-columns: 1fr;
  }
}

/* ===== Dark mode ===== */
html.dark .aksrt-product-page__badge--promo,
html.dark .aksrt-product-page__badge--promo {
  background: rgba(239, 68, 68, 0.18);
}

html.dark .aksrt-product-page__placeholder,
html.dark .aksrt-product-page__placeholder {
  background: var(--surface-2);
}

html.dark .aksrt-product-page__thumb,
html.dark .aksrt-product-page__thumb {
  border-color: var(--color-line);
}

html.dark .aksrt-product-page__content img,
html.dark .aksrt-product-page__content img {
  opacity: 0.92;
}

/* ============================================================
 * SKU 规格选择器
 * ============================================================ */
.aksrt-product-page__sku-selector {
  margin: 16px 0;
  padding: 16px;
  background: var(--surface-4);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.aksrt-product-page__spec-group {
  margin-bottom: 12px;
}

.aksrt-product-page__spec-group:last-child {
  margin-bottom: 0;
}

.aksrt-product-page__spec-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink-2);
  margin-bottom: 8px;
}

.aksrt-product-page__spec-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.aksrt-product-page__spec-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink-2);
  background: var(--surface-1);
  border: 1px solid var(--color-line);
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}

.aksrt-product-page__spec-btn:hover {
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-line, #e5e7eb));
  color: var(--color-primary);
}

.aksrt-product-page__spec-btn.is-active {
  background: var(--color-primary-soft);
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-line, #e5e7eb));
  color: var(--color-primary);
  font-weight: 600;
}

.aksrt-product-page__spec-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* SKU 信息区 */
.aksrt-product-page__sku-info {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--surface-1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.aksrt-product-page__sku-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-error);
}

.aksrt-product-page__sku-stock {
  font-size: 13px;
  color: var(--color-ink-3);
}


/* Product detail shell — align with single content stream */
.content-shell--product .content-wrap {
  padding-top: 8px;
}
.content-shell--product .aksrt-product-page {
  width: 100%;
}
.aksrt-product-page__related {
  margin-top: 28px;
  padding-top: 8px;
}
.aksrt-product-page__related-title {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink, #1f2937);
}
.aksrt-product-page__related-grid.aksrt-product-archive__grid {
  margin: 0;
}
.aksrt-product-page__merchant-link {
  display: inline-block;
  margin-top: 4px;
}