.page-products {
  --p-tier-low: #7C8B6A;
  --p-tier-mid: #B5714F;
  --p-tier-high: #C9A227;
  --p-row-line: rgba(107, 111, 108, .28);
  --p-row-bg: #FBF8F2;
  --p-row-bg-open: #F3EDE3;
  --p-rail-w: 0px;
  position: relative;
}

.page-products .prod-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

/* ---------- 首屏 ---------- */

.page-products .prod-hero {
  position: relative;
  overflow: hidden;
  background: var(--rice);
  padding: calc(var(--header-h) + 2.4rem) 0 3.4rem;
}

.page-products .prod-hero .surface-water {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
}

.page-products .prod-hero__wrap {
  position: relative;
  z-index: 1;
}

.page-products .breadcrumb {
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--stone);
}

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem;
  align-items: end;
}

.page-products .prod-kicker {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--gold-deep);
  margin: 0 0 1rem;
}

.page-products .prod-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 8vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: .01em;
  margin: 0 0 1.2rem;
  max-width: 15em;
}

.page-products .prod-hero .lede {
  max-width: 34em;
  color: var(--ink);
  margin: 0 0 1.8rem;
}

.page-products .prod-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 2.2rem;
  margin: 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--hairline-gold);
}

.page-products .prod-hero__fact {
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.page-products .prod-hero__fact dt {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--stone);
}

.page-products .prod-hero__fact dd {
  margin: 0;
  font-size: 1rem;
  color: var(--ink);
}

.page-products .prod-hero__fact dd .prod-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold-deep);
}

.page-products .prod-hero__media {
  margin: 0;
  box-shadow: var(--shadow-paper);
}

/* ---------- 刻度尺带 ---------- */

.page-products .prod-ruler-band .exhibit {
  margin-bottom: 1.6rem;
}

.page-products .prod-ruler-art {
  margin: 0 0 2rem;
  opacity: .78;
}

.page-products .ruler {
  margin-bottom: 2rem;
}

.page-products .ruler__bar {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--hairline-light);
}

.page-products .ruler__zone {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.15rem 1.2rem 1.3rem;
  text-decoration: none;
  color: var(--rice);
  background: rgba(243, 237, 227, .05);
  border-left: 4px solid var(--p-tier-low);
  transition: background .24s var(--ease), border-color .24s var(--ease);
}

.page-products .ruler__zone--mid { border-left-color: var(--p-tier-mid); }
.page-products .ruler__zone--high { border-left-color: var(--p-tier-high); }

.page-products .ruler__zone:hover,
.page-products .ruler__zone:focus-visible {
  background: rgba(243, 237, 227, .12);
}

.page-products .ruler__zone-tier {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .ruler__zone-ids {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .92rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-products .ruler__zone-cycle {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: rgba(243, 237, 227, .62);
}

.page-products .ruler__ticks {
  height: 20px;
  margin-top: .5rem;
  background-image: repeating-linear-gradient(
    to right,
    rgba(201, 162, 39, .55) 0,
    rgba(201, 162, 39, .55) 1px,
    transparent 1px,
    transparent 22px
  );
  opacity: .7;
}

/* ---------- 表格区 ---------- */

.page-products .desk-table {
  border-top: 1px solid var(--hairline);
}

.page-products .desk-table__head {
  display: none;
}

.page-products .desk-group {
  margin: 0;
  padding: 1.1rem 1rem .9rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--gold-deep);
  background: var(--rice);
  border-bottom: 1px solid var(--hairline-gold);
  scroll-margin-top: calc(var(--header-h) + 3.4rem);
}

.page-products .desk-row {
  border-bottom: 1px solid var(--p-row-line);
  background: var(--p-row-bg);
}

.page-products .desk-row[open] {
  background: var(--p-row-bg-open);
}

.page-products .desk-row__summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .4rem 1rem;
  padding: 1rem 2.6rem 1rem 1rem;
  cursor: pointer;
  list-style: none;
}

.page-products .desk-row__summary::-webkit-details-marker {
  display: none;
}

.page-products .desk-row__summary::after {
  content: "+";
  position: absolute;
  right: .95rem;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--gold-deep);
}

.page-products .desk-row[open] .desk-row__summary::after {
  content: "–";
}

.page-products .desk-row__id {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gold-deep);
  border-left: 3px solid var(--p-tier-low);
  padding-left: .6rem;
  min-width: 3.2rem;
}

.page-products .desk-row--mid .desk-row__id { border-left-color: var(--p-tier-mid); }
.page-products .desk-row--high .desk-row__id { border-left-color: var(--p-tier-high); }

.page-products .desk-row__tier,
.page-products .desk-row__range,
.page-products .desk-row__cycle {
  font-size: .84rem;
  color: var(--ink);
}

.page-products .desk-row__tier::before,
.page-products .desk-row__range::before,
.page-products .desk-row__cycle::before {
  content: attr(data-label) " / ";
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .08em;
  color: var(--stone);
}

.page-products .desk-row__range,
.page-products .desk-row__cycle {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.page-products .desk-row__note {
  flex-basis: 100%;
  font-size: .8rem;
  color: var(--stone);
}

.page-products .desk-row__body {
  padding: 0 1rem 1.3rem 1.6rem;
  border-left: 2px solid var(--gold-deep);
  margin: 0 1rem 1.2rem 1.05rem;
}

.page-products .desk-row__body p {
  margin: 0 0 .9rem;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--ink);
  max-width: 40em;
}

.page-products .desk-row__meta {
  display: grid;
  gap: .5rem;
  margin: 0;
  padding-top: .8rem;
  border-top: 1px dashed var(--p-row-line);
}

.page-products .desk-row__meta div {
  display: flex;
  gap: .8rem;
  align-items: baseline;
}

.page-products .desk-row__meta dt {
  flex: 0 0 5.4rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  color: var(--stone);
}

.page-products .desk-row__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .8rem;
  color: var(--ink);
}

.page-products .prod-table-side {
  margin: 0 0 2rem;
}

.page-products .prod-table-side img {
  filter: saturate(.9);
}

/* ---------- 排序逻辑 ---------- */

.page-products .prod-order {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  align-items: start;
}

.page-products .prod-order__text p {
  max-width: 34em;
  margin: 0 0 1.1rem;
}

.page-products .prod-order__ladder {
  display: flex;
  gap: .6rem;
  margin-top: 1.6rem;
}

.page-products .prod-order__step {
  flex: 1 1 0;
  padding: .8rem .5rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  text-align: center;
  color: var(--paper);
  background: var(--p-tier-low);
}

.page-products .prod-order__step--mid { background: var(--p-tier-mid); }
.page-products .prod-order__step--high { background: var(--gold-deep); }

.page-products .prod-order__media {
  margin: 0;
  box-shadow: var(--shadow-paper);
}

/* ---------- 周期映射 ---------- */

.page-products .prod-map {
  list-style: none;
  margin: 2rem 0 1.6rem;
  padding: 0;
  border: 1px solid var(--hairline-light);
}

.page-products .prod-map__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .4rem .8rem;
  padding: 1.1rem 1.1rem 1.2rem;
  border-bottom: 1px solid var(--hairline-light);
  border-left: 4px solid var(--p-tier-low);
  color: var(--rice);
}

.page-products .prod-map__row--mid { border-left-color: var(--p-tier-mid); }
.page-products .prod-map__row--high { border-left-color: var(--p-tier-high); }

.page-products .prod-map__row:last-child {
  border-bottom: 0;
}

.page-products .prod-map__tier {
  grid-column: 1 / -1;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.page-products .prod-map__ids {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .9rem;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-products .prod-map__cycle {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: rgba(243, 237, 227, .72);
}

.page-products .prod-map__period {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: rgba(243, 237, 227, .52);
}

.page-products .prod-map__note {
  max-width: 40em;
  margin: 0;
  font-size: .92rem;
  line-height: 1.85;
  color: rgba(243, 237, 227, .8);
}

/* ---------- 单桌核定 ---------- */

.page-products .prod-perdesk {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  align-items: start;
}

.page-products .prod-perdesk__text p {
  max-width: 34em;
  margin: 0 0 1.1rem;
}

.page-products .prod-perdesk__links {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 1.6rem;
}

.page-products .prod-perdesk__media {
  margin: 0;
  box-shadow: var(--shadow-paper);
}

/* ---------- 时段联动 ---------- */

.page-products .prod-hours {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
  margin-top: 1.4rem;
}

.page-products .prod-hours__col {
  padding: 1.3rem 1.2rem 1.4rem;
  background: var(--paper);
  border-top: 2px solid var(--gold);
  box-shadow: 0 1px 0 rgba(26, 26, 24, .06);
}

.page-products .prod-hours__sub {
  margin: 0 0 .7rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .prod-hours__col p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 版本复核 ---------- */

.page-products .prod-version {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

.page-products .prod-version__main p {
  max-width: 40em;
  margin: 0 0 1.1rem;
}

.page-products .prod-version__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hairline-gold);
}

.page-products .prod-version__list li {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem .9rem;
  padding: .85rem 0;
  border-bottom: 1px solid var(--hairline-light);
}

.page-products .prod-version__k {
  flex: 0 0 5.6rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: rgba(243, 237, 227, .58);
}

.page-products .prod-version__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .84rem;
  color: var(--gold);
}

.page-products .prod-more {
  margin-top: 3.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline-light);
}

.page-products .prod-more__title {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .14em;
  color: rgba(243, 237, 227, .6);
}

.page-products .prod-more__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
}

.page-products .prod-more__list li {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1rem 1.1rem;
  background: rgba(243, 237, 227, .05);
  border-left: 3px solid var(--gold-deep);
}

.page-products .prod-more__list a {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--rice);
  text-decoration: none;
  letter-spacing: .02em;
}

.page-products .prod-more__list a:hover,
.page-products .prod-more__list a:focus-visible {
  color: var(--gold);
}

.page-products .prod-more__list span {
  font-size: .8rem;
  line-height: 1.7;
  color: rgba(243, 237, 227, .62);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .prod-hours,
  .page-products .prod-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-map__row {
    grid-template-columns: 1.2fr 1fr 1fr auto;
    align-items: baseline;
  }

  .page-products .prod-map__tier,
  .page-products .prod-map__period {
    grid-column: auto;
  }

  .page-products .prod-map__period {
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-products .prod-hero {
    padding: calc(var(--header-h) + 4rem) 0 5rem;
  }

  .page-products .prod-hero__grid {
    grid-template-columns: 7fr 4fr;
    gap: 3.4rem;
  }

  .page-products .prod-hero__media {
    transform: translateY(1.6rem);
  }

  .page-products .ruler__bar {
    flex-direction: row;
  }

  .page-products .ruler__zone {
    flex: 1 1 0;
    border-left: 0;
    border-top: 4px solid var(--p-tier-low);
    padding: 1.6rem 1.4rem 1.8rem;
  }

  .page-products .ruler__zone--mid { border-top-color: var(--p-tier-mid); }
  .page-products .ruler__zone--high { border-top-color: var(--p-tier-high); }

  .page-products .prod-table-layout {
    display: grid;
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: 2.6rem;
    align-items: start;
  }

  .page-products .prod-table-side {
    margin: 0;
    position: sticky;
    top: calc(var(--header-h) + 4rem);
  }

  .page-products .desk-table__head {
    display: grid;
    grid-template-columns: 5.4rem 9.6rem 7.6rem 9.4rem minmax(0, 1fr);
    position: sticky;
    top: var(--header-h);
    z-index: 3;
    background: var(--rice);
    padding: .85rem 1rem;
    font-family: var(--font-mono);
    font-size: .7rem;
    letter-spacing: .1em;
    color: var(--stone);
    border-bottom: 1px solid var(--hairline-gold);
  }

  .page-products .desk-row__summary {
    display: grid;
    grid-template-columns: 5.4rem 9.6rem 7.6rem 9.4rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0 1rem;
    padding: 1.05rem 2.6rem 1.05rem 1rem;
  }

  .page-products .desk-row__tier::before,
  .page-products .desk-row__range::before,
  .page-products .desk-row__cycle::before {
    content: none;
  }

  .page-products .desk-row__note {
    flex-basis: auto;
  }

  .page-products .desk-row__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .8rem 1.6rem;
  }

  .page-products .desk-row__meta div {
    flex-direction: column;
    gap: .25rem;
  }

  .page-products .desk-row__meta dt {
    flex: none;
  }

  .page-products .prod-order,
  .page-products .prod-perdesk,
  .page-products .prod-version {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 3.2rem;
  }

  .page-products .prod-order__media {
    margin-top: 3.4rem;
  }

  .page-products .prod-hours {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.2rem;
  }

  .page-products .prod-more__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-products .prod-table-layout {
    grid-template-columns: 17rem minmax(0, 1fr);
    gap: 3.4rem;
  }

  .page-products .desk-table__head,
  .page-products .desk-row__summary {
    grid-template-columns: 6rem 10.4rem 8.4rem 10rem minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ruler__zone,
  .page-products .prod-more__list a {
    transition: none;
  }
}