/* Parts pages — extends ../css/site.css light theme */

:root {
  --parts-accent: #171a20;
  --parts-radius: 4px;
}

.parts-page .hero {
  padding: calc(var(--nav-h) + 72px) 24px 72px;
  background: linear-gradient(180deg, #f7f7f7 0%, var(--bg-soft) 100%);
  border-bottom: 0;
}

.parts-page .hero-inner,
.parts-page .container {
  max-width: var(--max-w);
  margin: 0 auto;
}

.parts-page .hero h1 {
  margin: 0 0 12px;
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 500;
  color: var(--text);
}

.parts-page .hero p {
  margin: 0 0 24px;
  max-width: 680px;
  color: var(--text-muted);
  font-size: 17px;
}

.parts-page .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.parts-page .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  border-radius: 4px;
  color: #fff;
  background: var(--parts-accent);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.2s var(--ease);
}

.parts-page .button:hover { opacity: 0.85; }

.parts-page .button.secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--text);
}

.parts-page .section { padding: 72px 24px; }

.parts-page .section-title {
  margin: 0 0 8px;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 500;
  text-align: center;
  color: var(--text);
}

.parts-page .section-lead {
  max-width: 720px;
  margin: 0 auto 32px;
  color: var(--text-muted);
  text-align: center;
}

.parts-page .toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.parts-page #categoryChips {
  order: 1;
  flex: 1 1 520px;
}

.parts-page .search-box {
  order: 2;
  flex: 0 1 280px;
  min-width: 220px;
  max-width: 280px;
}

.parts-page .search-box input,
.parts-page .form-group input,
.parts-page .form-group select,
.parts-page .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
  background: #fff;
  color: var(--text);
}

.parts-page .form-group textarea { min-height: 96px; resize: vertical; }

.parts-page .layout-2 {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}

.parts-page .chips { display: flex; flex-wrap: wrap; gap: 8px; }

.parts-page .chip {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.parts-page .chip.active {
  border-color: var(--parts-accent);
  color: var(--parts-accent);
  background: var(--bg-soft);
}

.parts-page .grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.parts-page .product-card {
  display: flex;
  flex-direction: column;
  border-radius: 2px;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: none;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s var(--ease), opacity 0.2s var(--ease);
}

.parts-page .product-card:hover {
  border-color: var(--text-dim);
  opacity: 0.96;
}

.parts-page .product-thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-soft);
  color: var(--text-muted);
  font-size: 36px;
  font-weight: 700;
}

.parts-page .product-body { padding: 20px 20px 22px; flex: 1; }

.parts-page .product-body h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }

.parts-page .product-body p { margin: 0 0 12px; color: var(--text-muted); font-size: 14px; }

.parts-page .product-meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; }

.parts-page .price { color: var(--text); font-size: 18px; font-weight: 500; }

.parts-page .badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.parts-page .badge.stock,
.parts-page .badge.custom,
.parts-page .badge.low {
  background: var(--bg-soft);
  color: var(--text-muted);
}

.parts-page .panel {
  padding: 28px;
  border-radius: 2px;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: none;
}

.parts-page .form-group { margin-bottom: 16px; }

.parts-page .form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; }

.parts-page .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.parts-page .empty { padding: 48px 24px; text-align: center; color: var(--text-muted); }

.parts-page .empty a { color: var(--text); text-decoration: underline; }

.parts-page .custom-band {
  margin-top: 40px;
  padding: 40px 24px;
  background: var(--bg-soft);
  text-align: center;
}

.parts-page .custom-band h3 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
}

.parts-page .custom-band p {
  margin: 0 auto 20px;
  max-width: 640px;
  color: var(--text-muted);
}

@media (max-width: 820px) {
  .parts-page .grid,
  .parts-page .layout-2,
  .parts-page .form-grid { grid-template-columns: 1fr; }

  .parts-page .toolbar { align-items: stretch; }
  .parts-page #categoryChips {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .parts-page .search-box { max-width: none; flex-basis: 100%; }
}

/* Checkout and cart flow */
.parts-page .muted-text,
.parts-page .bank-notice-line,
.parts-page .bank-notice-hint,
.parts-page .order-item-spec {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

.parts-page .price-unit {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 2px;
  font-weight: 400;
}

.parts-page .button.compact {
  min-height: 36px;
  padding: 0 14px;
  font-size: 13px;
}

.parts-page .product-card-actions.inline {
  justify-content: flex-start;
  margin-top: 16px;
}

.parts-page .cart-table-wrap { overflow-x: auto; }

.parts-page .cart-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.parts-page .cart-table th,
.parts-page .cart-table td {
  padding: 14px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
  font-size: 14px;
}

.parts-page .cart-table th {
  color: var(--text-muted);
  font-weight: 600;
}

.parts-page .qty-input {
  width: 76px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
}

.parts-page .cart-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-top: 24px;
}

.parts-page .cart-total-box {
  width: min(100%, 340px);
  display: grid;
  gap: 14px;
}

.parts-page .checkout-layout,
.parts-page .order-layout { align-items: start; }

.parts-page .checkout-form h3,
.parts-page .checkout-summary h3,
.parts-page .order-layout h3 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
}

.parts-page .form-subtitle { margin-top: 24px !important; }

.parts-page .checkout-submit {
  width: 100%;
  margin-top: 20px;
}

.parts-page .pay-options {
  display: grid;
  gap: 10px;
}

.parts-page .pay-options label {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
}

.parts-page .pay-options label.disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.parts-page .pay-options input { margin-top: 3px; }

.parts-page .pay-options strong,
.parts-page .pay-options small {
  display: block;
}

.parts-page .pay-options small {
  margin-top: 4px;
  color: var(--text-muted);
  line-height: 1.55;
}

.parts-page .notice {
  margin-top: 16px;
  padding: 16px;
  border-radius: 4px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

.parts-page .bank-notice strong { display: block; }

.parts-page .bank-notice-line { margin: 8px 0 0; }
.parts-page .bank-notice-hint { margin: 8px 0 0; }

.parts-page .summary-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 14px;
}

.parts-page .summary-row span:last-child {
  color: var(--text);
  text-align: right;
  white-space: nowrap;
}

.parts-page .summary-row.total {
  margin-top: 8px;
  padding-top: 16px;
  border-bottom: 0;
  color: var(--text);
  font-weight: 600;
  font-size: 16px;
}

.parts-page .summary-row.total span:last-child { font-size: 20px; }

.parts-page .summary-divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

.parts-page .summary-machine-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.parts-page .summary-machine-tier {
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 14px;
}

.parts-page .summary-option {
  display: grid;
  gap: 4px;
  padding: 10px 0;
  color: var(--text-muted);
}

.parts-page .summary-option::before {
  content: "未选";
  display: inline-flex;
  width: max-content;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-muted);
  font-size: 12px;
}

.parts-page .summary-option.enabled::before {
  content: "已选";
  color: #fff;
  background: var(--text);
}

.parts-page .summary-option.included {
  color: var(--text);
}

.parts-page .summary-option.included::before {
  content: "已含";
  color: #fff;
  background: var(--text);
}
.parts-page .summary-option strong { color: var(--text); }
.parts-page .summary-option span { font-size: 13px; line-height: 1.55; }

.parts-page .order-item-spec {
  margin: -4px 0 10px;
}

.parts-page .order-next-step {
  color: var(--text-muted);
  line-height: 1.7;
}

.parts-page .order-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

@media (max-width: 820px) {
  .parts-page .cart-actions-row {
    align-items: stretch;
    flex-direction: column;
  }
  .parts-page .cart-total-box { width: 100%; }
  .parts-page .order-actions .button,
  .parts-page .cart-total-box .button { width: 100%; }
}
/* Tesla full-site layout v2 */
.parts-page .hero {
  min-height: 46vh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--nav-h) + 84px) 24px 72px;
  background: var(--bg);
  border-bottom: var(--border-subtle);
}

.parts-page .hero-inner {
  width: 100%;
}

.parts-page .hero h1 {
  max-width: 760px;
  font-size: clamp(36px, 5vw, 52px);
  letter-spacing: 0;
}

.parts-page .hero p {
  max-width: 720px;
  font-size: 17px;
  line-height: 1.7;
}

.parts-page .section { padding: var(--section-pad-y) 24px; }

.parts-page .section-title {
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: 0;
}

.parts-page .toolbar {
  gap: 24px;
  margin-bottom: 36px;
}

.parts-page .chip {
  border-radius: var(--card-radius);
  background: #fff;
}

.parts-page .grid {
  gap: clamp(24px, 3vw, 40px);
}

.parts-page .product-card {
  border: 0;
  border-radius: var(--card-radius);
  text-align: center;
}

.parts-page .product-card:hover {
  border-color: transparent;
  opacity: 0.9;
}

.parts-page .product-thumb {
  height: clamp(210px, 22vw, 300px);
  background: #f5f5f5;
  font-size: 42px;
}

.parts-page .product-body {
  padding: 22px 8px 0;
}

.parts-page .product-body h3 {
  font-size: 20px;
}

.parts-page .product-meta {
  justify-content: center;
  flex-direction: column;
}

.parts-page .product-card-actions.inline {
  justify-content: center;
}

.parts-page .custom-band {
  margin-top: 56px;
  padding: 56px 24px;
  background: var(--bg-soft);
}

.parts-page .panel {
  border-radius: var(--card-radius);
  box-shadow: none;
}

.parts-page .checkout-layout,
.parts-page .order-layout {
  grid-template-columns: minmax(0, 1fr) minmax(340px, var(--sidebar-w));
  gap: clamp(32px, 5vw, 64px);
}

.parts-page .checkout-form,
.parts-page .checkout-summary,
.parts-page .order-layout .panel {
  border: 0;
  padding: 0;
}

.parts-page .checkout-form {
  max-width: 720px;
}

.parts-page .checkout-summary {
  position: sticky;
  top: calc(var(--nav-h) + 32px);
  align-self: start;
  padding-top: 2px;
}

.parts-page .checkout-form h3,
.parts-page .checkout-summary h3,
.parts-page .order-layout h3 {
  font-size: 20px;
  font-weight: 500;
}

.parts-page .form-group input,
.parts-page .form-group select,
.parts-page .form-group textarea,
.parts-page .pay-options label {
  border-radius: var(--card-radius);
}

.parts-page .pay-options label:has(input:checked) {
  border-color: var(--text);
  box-shadow: inset 0 0 0 1px var(--text);
}

.parts-page .cart-table th,
.parts-page .cart-table td {
  padding: 18px 10px;
}

.parts-page .cart-actions-row {
  align-items: flex-start;
}

.parts-page .cart-total-box {
  position: sticky;
  top: calc(var(--nav-h) + 32px);
}

.parts-page .order-section .container {
  max-width: 980px;
}

.parts-page .order-section .section-title {
  font-size: clamp(38px, 6vw, 56px);
}

.parts-page .order-actions .button {
  min-width: 150px;
}

.custom-page .hero {
  min-height: 36vh;
  text-align: center;
}

.custom-page .hero-inner,
.custom-page .hero p {
  margin-left: auto;
  margin-right: auto;
}

.custom-page .layout-2 {
  grid-template-columns: minmax(0, 560px);
  justify-content: center;
}

.custom-page .layout-2 > div {
  display: grid;
  gap: 20px;
}

@media (max-width: 820px) {
  .parts-page .checkout-layout,
  .parts-page .order-layout {
    grid-template-columns: 1fr;
  }
  .parts-page .checkout-summary,
  .parts-page .cart-total-box {
    position: static;
  }
}