.page-products {
  --products-hairline: 1px solid var(--warm-grey);
  --products-copper-line: 1px solid var(--copper);
  --products-stack: 0 1px 0 var(--warm-grey), 0 8px 22px rgba(36, 30, 26, .06);
  color: var(--warm-black);
  font-family: var(--font-body);
}

.page-products .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .breadcrumbs__sep {
  margin: 0 .5em;
  color: var(--slate-grey);
}

.page-products .mono,
.page-products .label {
  font-family: var(--font-mono);
}

.page-products .label {
  font-family: var(--font-label);
}

/* ---------- 索引头 ---------- */

.page-products .library-hero {
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(183, 137, 63, .14), transparent 58%),
    linear-gradient(180deg, var(--cream-paper), var(--cream-paper));
}

.page-products .library-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.page-products .library-head__kicker {
  margin: 0 0 var(--space-2);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--copper);
  text-transform: uppercase;
}

.page-products .library-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--ink-indigo);
}

.page-products .library-head__text {
  margin: var(--space-3) 0 0;
  max-width: 44ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--warm-black);
}

.page-products .library-head__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  border: var(--products-hairline);
  background: var(--warm-grey);
}

.page-products .library-head__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
  background: var(--porcelain);
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--slate-grey);
}

.page-products .library-head__num {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink-indigo);
}

.page-products .library-head__note {
  margin: var(--space-3) 0 0;
  padding-left: var(--space-2);
  border-left: 2px solid var(--copper);
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-grey);
}

.page-products .library-head__media {
  border: var(--products-hairline);
  overflow: hidden;
}

.page-products .library-head__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通用区块细调 ---------- */

.page-products .section__lede {
  margin: var(--space-2) 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--warm-black);
}

/* ---------- 三档区间 ---------- */

.page-products .tier-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-products .tier-block {
  position: relative;
  overflow: hidden;
  border: var(--products-hairline);
  border-radius: var(--radius-card);
  background: var(--porcelain);
  box-shadow: var(--products-stack);
  transition: border-color .18s ease, transform .18s ease;
}

.page-products .tier-block:hover {
  border-color: var(--copper);
  transform: translateY(-2px);
}

.page-products .tier-block__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .15;
  pointer-events: none;
}

.page-products .tier-block__body {
  position: relative;
  z-index: 1;
  padding: var(--space-3);
}

.page-products .tier-block__range {
  margin: 0;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--copper);
}

.page-products .tier-block__name {
  margin: var(--space-1) 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--ink-indigo);
}

.page-products .tier-block__text {
  margin: var(--space-2) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--warm-black);
}

.page-products .tier-block__meta {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--products-copper-line);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-grey);
}

/* ---------- 型号对照 ---------- */

.page-products .model-rail {
  margin-bottom: var(--space-3);
  border-top: var(--products-hairline);
  border-bottom: var(--products-hairline);
  background: var(--porcelain);
}

.page-products .model-rail__track {
  display: flex;
  gap: var(--space-1);
  margin: 0;
  padding: var(--space-2) var(--space-2);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .model-rail__track::-webkit-scrollbar {
  height: 4px;
}

.page-products .model-rail__track::-webkit-scrollbar-thumb {
  background: var(--copper);
}

.page-products .model-rail__link {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--indigo-mid);
  text-decoration: none;
  transition: border-color .16s ease, color .16s ease;
}

.page-products .model-rail__link:hover,
.page-products .model-rail__link:focus-visible {
  border-color: var(--copper);
  color: var(--ink-indigo);
}

.page-products .library {
  position: relative;
}

.page-products .tier-switch {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.page-products .tier-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .tier-switch__label {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--copper);
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-indigo);
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-products .tier-switch__label:hover {
  border-color: var(--copper-light);
  background: rgba(183, 137, 63, .1);
}

.page-products .tier-switch__input:focus-visible + .tier-switch__label {
  outline: 2px solid var(--indigo-mid);
  outline-offset: 2px;
}

.page-products .tier-switch__input:checked + .tier-switch__label {
  background: var(--ink-indigo);
  border-color: var(--ink-indigo);
  color: var(--porcelain);
}

.page-products .table-scroll {
  overflow-x: auto;
  border: var(--products-hairline);
  border-radius: var(--radius-card);
  background: var(--porcelain);
}

.page-products .products-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .products-table thead th {
  padding: var(--space-2) var(--space-2);
  border-bottom: var(--products-copper-line);
  background: var(--indigo-mist);
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .12em;
  text-align: left;
  color: var(--ink-indigo);
  white-space: nowrap;
}

.page-products .products-table tbody th,
.page-products .products-table tbody td {
  padding: var(--space-2) var(--space-2);
  border-bottom: 1px solid var(--warm-grey);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}

.page-products .products-table tbody tr:nth-child(even) {
  background: rgba(228, 231, 238, .45);
}

.page-products .products-table tbody tr:hover {
  background: var(--indigo-mist);
}

.page-products .products-table tbody tr:hover td:nth-child(3) {
  box-shadow: inset 3px 0 0 var(--copper);
}

.page-products .products-table tbody tr:last-child th,
.page-products .products-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .products-table a {
  color: var(--indigo-mid);
  text-decoration: none;
  letter-spacing: .12em;
  border-bottom: 1px solid transparent;
  transition: border-color .16s ease, color .16s ease;
}

.page-products .products-table a:hover,
.page-products .products-table a:focus-visible {
  border-bottom-color: var(--copper);
  color: var(--ink-indigo);
}

.page-products .products-table .status-dot {
  margin-right: 6px;
  vertical-align: middle;
}

.page-products .products-table .label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-grey);
}

.page-products .library__hint {
  display: none;
  margin: var(--space-2) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-grey);
}

.page-products .library__hint--all {
  display: block;
}

.page-products .library:has(.tier-switch__input--small:checked) .model-row:not(.is-small),
.page-products .library:has(.tier-switch__input--standard:checked) .model-row:not(.is-standard),
.page-products .library:has(.tier-switch__input--engineer:checked) .model-row:not(.is-engineer) {
  display: none;
}

.page-products .library:has(.tier-switch__input--small:checked) .model-card:not(.is-small),
.page-products .library:has(.tier-switch__input--standard:checked) .model-card:not(.is-standard),
.page-products .library:has(.tier-switch__input--engineer:checked) .model-card:not(.is-engineer) {
  display: none;
}

.page-products .library:has(.tier-switch__input--small:checked) .library__hint--all,
.page-products .library:has(.tier-switch__input--standard:checked) .library__hint--all,
.page-products .library:has(.tier-switch__input--engineer:checked) .library__hint--all {
  display: none;
}

.page-products .library:has(.tier-switch__input--small:checked) .library__hint--small,
.page-products .library:has(.tier-switch__input--standard:checked) .library__hint--standard,
.page-products .library:has(.tier-switch__input--engineer:checked) .library__hint--engineer {
  display: block;
}

/* ---------- 原料来源 ---------- */

.page-products .material-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
  align-items: start;
}

.page-products .material-layout__media {
  border: var(--products-hairline);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--porcelain);
}

.page-products .material-layout__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .material-list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .material-item {
  padding: var(--space-3);
  border: var(--products-hairline);
  border-radius: var(--radius-card);
  background: var(--porcelain);
  box-shadow: var(--products-stack);
  transition: border-color .18s ease, transform .18s ease;
}

.page-products .material-item:hover {
  border-color: var(--copper);
  transform: translateY(-2px);
}

.page-products .material-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  margin: 0;
}

.page-products .material-item__code {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--copper);
}

.page-products .material-item__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--ink-indigo);
}

.page-products .material-item__text {
  margin: var(--space-2) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--warm-black);
}

.page-products .material-item__models {
  margin: var(--space-2) 0 0;
  padding-top: var(--space-2);
  border-top: var(--products-copper-line);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-grey);
}

/* ---------- 型号条目卡 ---------- */

.page-products .model-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-products .model-card {
  border: var(--products-hairline);
  border-radius: var(--radius-card);
  background: var(--porcelain);
  box-shadow: var(--products-stack);
  transition: border-color .16s ease, transform .16s ease;
}

.page-products .model-card:hover {
  border-color: var(--copper);
  transform: translateY(-2px);
}

.page-products .model-card[data-open="true"],
.page-products .model-card.is-active {
  border-color: var(--copper);
}

.page-products .model-card__header {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-products .model-card__trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  width: 100%;
  padding: var(--space-3);
  border: 0;
  background: transparent;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.page-products .model-card__trigger::before {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
}

.page-products .model-card {
  position: relative;
}

.page-products .model-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 34px;
  border-top: 2px solid var(--copper);
  border-left: 2px solid var(--copper);
  border-top-left-radius: var(--radius-card);
  pointer-events: none;
}

.page-products .model-card__index {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--copper);
}

.page-products .model-card__name {
  flex: 1 1 auto;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--ink-indigo);
}

.page-products .model-card__tier {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-grey);
}

.page-products .model-card__mark {
  position: relative;
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  border: 1px solid var(--copper);
  border-radius: 50%;
}

.page-products .model-card__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 1px;
  background: var(--copper);
  transform: translate(-50%, -50%);
}

.page-products .model-card__panel {
  padding: 0 var(--space-3) var(--space-3);
  border-top: 1px dashed var(--warm-grey);
  margin-top: 0;
}

.page-products .model-card__spec {
  display: grid;
  gap: 1px;
  margin: var(--space-3) 0 0;
  border: var(--products-hairline);
  background: var(--warm-grey);
}

.page-products .model-card__spec > div {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  padding: var(--space-2);
  background: var(--porcelain);
}

.page-products .model-card__spec dt {
  flex: 0 0 6.5em;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-grey);
}

.page-products .model-card__spec dd {
  flex: 1 1 auto;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--warm-black);
}

.page-products .model-card__text {
  margin: var(--space-3) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--warm-black);
}

.page-products .model-card__foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--products-copper-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate-grey);
}

/* ---------- 推进顺序 ---------- */

.page-products .path-section {
  position: relative;
  overflow: hidden;
}

.page-products .path-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(244, 239, 230, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 239, 230, .06) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.page-products .path-section > .container {
  position: relative;
  z-index: 1;
}

.page-products .path-section .section__index {
  color: var(--copper-light);
}

.page-products .path-section .section__title {
  color: var(--cream-paper);
}

.page-products .path-section__lede {
  color: rgba(244, 239, 230, .78);
}

.page-products .path-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: path;
}

.page-products .path-step {
  padding: var(--space-3);
  border: 1px solid rgba(217, 185, 120, .38);
  border-radius: var(--radius-card);
  background: rgba(244, 239, 230, .04);
}

.page-products .path-step__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--copper-light);
}

.page-products .path-step__title {
  margin: var(--space-1) 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--cream-paper);
}

.page-products .path-step__text {
  margin: var(--space-2) 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 239, 230, .8);
}

.page-products .path-step__text a {
  color: var(--copper-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 185, 120, .5);
}

.page-products .path-step__text a:hover,
.page-products .path-step__text a:focus-visible {
  border-bottom-color: var(--copper-light);
}

.page-products .path-section__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(217, 185, 120, .38);
}

.page-products .path-section__note {
  margin: 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 239, 230, .75);
}

.page-products .path-section__note a {
  color: var(--copper-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 185, 120, .5);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .library-head__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .model-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-products .path-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 900px) {
  .page-products .library-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-5);
    align-items: end;
  }

  .page-products .tier-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    align-items: start;
  }

  .page-products .tier-block--standard {
    margin-top: var(--space-3);
  }

  .page-products .tier-block--engineer {
    margin-top: var(--space-5);
  }

  .page-products .material-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-5);
  }

  .page-products .material-layout__media {
    position: sticky;
    top: 96px;
  }

  .page-products .path-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-products .model-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .page-products .table-scroll {
    overflow-x: visible;
    border: 0;
    background: transparent;
  }

  .page-products .products-table,
  .page-products .products-table tbody,
  .page-products .products-table tr,
  .page-products .products-table th,
  .page-products .products-table td {
    display: block;
    width: 100%;
    min-width: 0;
  }

  .page-products .products-table thead {
    display: none;
  }

  .page-products .products-table tbody tr {
    margin-bottom: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border: var(--products-hairline);
    border-radius: var(--radius-card);
    background: var(--porcelain);
    box-shadow: var(--products-stack);
  }

  .page-products .products-table tbody tr:nth-child(even) {
    background: var(--porcelain);
  }

  .page-products .products-table tbody tr:hover td:nth-child(3) {
    box-shadow: none;
  }

  .page-products .products-table tbody th,
  .page-products .products-table tbody td {
    padding: 5px 0;
    border-bottom: 0;
  }

  .page-products .products-table tbody th {
    padding-bottom: var(--space-1);
    border-bottom: var(--products-copper-line);
    font-size: 15px;
  }

  .page-products .products-table tbody td::before {
    display: inline-block;
    width: 6.5em;
    font-family: var(--font-label);
    font-size: 12px;
    letter-spacing: .1em;
    color: var(--slate-grey);
  }

  .page-products .products-table tbody td:nth-child(2)::before {
    content: "适配方向";
  }

  .page-products .products-table tbody td:nth-child(3)::before {
    content: "原料来源";
  }

  .page-products .products-table tbody td:nth-child(4)::before {
    content: "起订档位";
  }

  .page-products .products-table tbody td:nth-child(5)::before {
    content: "核对状态";
  }

  .page-products .model-card__trigger {
    padding: var(--space-3) var(--space-2) var(--space-2);
  }

  .page-products .model-card__panel {
    padding: 0 var(--space-2) var(--space-2);
  }

  .page-products .model-card__spec dt {
    flex-basis: 100%;
  }
}