.page-products {
  --biz-gap: clamp(1rem, 2.4vw, 1.75rem);
  --biz-shadow: 6px 6px 0 var(--aged);
  --biz-shadow-hover: 8px 8px 0 var(--gold-soft);
  --biz-sticky-top: 0px;
}

/* ---------- 首屏 ---------- */
.page-products .biz-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(1.25rem, 3.5vw, 2rem) 0 clamp(2.25rem, 6vw, 4rem);
}

.page-products .biz-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(245, 240, 230, .08) 1px, transparent 1px);
  background-size: 7px 7px;
  opacity: .55;
  pointer-events: none;
}

.page-products .biz-hero__shell {
  position: relative;
  z-index: 1;
}

.page-products .biz-hero .breadcrumb {
  color: var(--on-dark-dim);
}

.page-products .biz-hero .breadcrumb a {
  color: var(--on-dark-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .biz-hero .breadcrumb a:hover,
.page-products .biz-hero .breadcrumb a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-products .breadcrumb [aria-current="page"] {
  color: var(--paper);
  font-weight: 700;
}

.page-products .biz-hero__sep {
  color: var(--gold);
  padding: 0 .35rem;
}

.page-products .biz-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-products .biz-hero .section__eyebrow {
  color: var(--gold);
  font-size: .8125rem;
  letter-spacing: .18em;
  margin: 0 0 .75rem;
}

.page-products .biz-hero__title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(2.5rem, 9vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 0;
  color: var(--paper);
}

.page-products .biz-hero__mark {
  color: var(--gold);
  display: inline-block;
}

.page-products .biz-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 36em;
  font-size: clamp(.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.85;
  color: var(--on-dark-dim);
}

.page-products .biz-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-products .biz-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--on-dark-line);
  border: 1px solid var(--on-dark-line);
  align-self: start;
}

.page-products .biz-stat {
  background: var(--ink);
  padding: 1rem .9rem 1.1rem;
}

.page-products .biz-stat dt {
  margin: 0;
  font-size: .78125rem;
  letter-spacing: .14em;
  color: var(--on-dark-dim);
}

.page-products .biz-stat dd {
  margin: .35rem 0 0;
  display: flex;
  align-items: baseline;
  gap: .3rem;
  font-family: var(--serif);
  color: var(--paper);
}

.page-products .biz-stat .num {
  font-family: var(--mono);
  font-size: clamp(1.75rem, 4.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -.02em;
}

.page-products .biz-stat__unit {
  font-size: .875rem;
  color: var(--on-dark-dim);
}

/* ---------- 查询台 ---------- */
.page-products .biz-query {
  padding-top: clamp(2.25rem, 5vw, 3.5rem);
}

.page-products .biz-query__head {
  display: grid;
  gap: clamp(1.25rem, 3.5vw, 2.5rem);
}

.page-products .section__title {
  font-family: var(--serif);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: .35rem 0 0;
  font-size: clamp(1.6rem, 4.6vw, 2.75rem);
}

.page-products .section__eyebrow {
  margin: 0;
  color: var(--red);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .16em;
}

.page-products .section__lead {
  margin: .9rem 0 0;
  max-width: 38em;
  font-size: clamp(.9375rem, 1.5vw, 1.0625rem);
  line-height: 1.85;
  color: var(--charcoal);
}

.page-products .biz-query__figure {
  margin: 0;
}

.page-products .biz-filter {
  position: sticky;
  top: var(--biz-sticky-top);
  z-index: 6;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding: .85rem 0 .95rem;
  background: var(--paper);
  border-top: 3px solid var(--ink);
  border-bottom: 1px solid var(--hairline);
  box-shadow: 0 6px 0 rgba(18, 16, 14, .05);
}

.page-products .biz-filter__label {
  margin: 0 0 .55rem;
  font-family: var(--serif);
  font-weight: 800;
  font-size: .9375rem;
  letter-spacing: .06em;
  color: var(--ink);
}

.page-products .biz-filter__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .biz-chip {
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  padding: .35rem .65rem;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: .9375rem;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .biz-chip b {
  font-family: var(--mono);
  font-size: .8125rem;
  font-weight: 700;
  color: var(--indigo);
}

.page-products .biz-chip:hover,
.page-products .biz-chip:focus-visible {
  background: var(--red);
  border-color: var(--red-deep);
  color: var(--paper);
  box-shadow: 3px 3px 0 var(--gold);
}

.page-products .biz-chip:hover b,
.page-products .biz-chip:focus-visible b {
  color: var(--gold-soft);
}

.page-products .biz-filter__hint {
  margin: .7rem 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--charcoal);
}

/* ---------- 省级区域分组 ---------- */
.page-products .biz-reg {
  margin-top: clamp(2rem, 5vw, 3.25rem);
  scroll-margin-top: 7.5rem;
}

.page-products .biz-reg__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .4rem 1rem;
  padding-bottom: .6rem;
  border-bottom: 3px solid var(--ink);
}

.page-products .biz-reg__name {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(1.2rem, 3.2vw, 1.6rem);
  letter-spacing: -.01em;
}

.page-products .biz-reg__count {
  margin: 0 0 0 auto;
  font-family: var(--mono);
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--charcoal);
}

.page-products .biz-reg__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15.5rem), 1fr));
  gap: clamp(.85rem, 2.2vw, 1.35rem);
  margin-top: clamp(.9rem, 2.5vw, 1.4rem);
}

.page-products .biz-card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1rem 1rem 1.15rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--biz-shadow);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .biz-card:hover,
.page-products .biz-card:focus-within {
  border-color: var(--red);
  box-shadow: var(--biz-shadow-hover);
  transform: translateY(-2px);
}

.page-products .biz-card__tag {
  align-self: flex-start;
  padding: .15rem .5rem;
  font-size: .75rem;
  letter-spacing: .08em;
  background: var(--aged);
  color: var(--ink);
  border: 1px solid rgba(18, 16, 14, .22);
  transition: background var(--dur) var(--ease);
}

.page-products .biz-card:hover .biz-card__tag,
.page-products .biz-card:focus-within .biz-card__tag {
  background: var(--gold-soft);
}

.page-products .biz-card__no {
  font-family: var(--mono);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--red);
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--gold-line);
}

.page-products .biz-card__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.4;
}

.page-products .biz-card__sum {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--charcoal);
}

.page-products .biz-card .card__more {
  margin-top: auto;
  padding-top: .6rem;
  font-size: .875rem;
  font-weight: 700;
  color: var(--indigo);
  text-decoration: none;
  border-top: 1px solid var(--hairline);
}

.page-products .biz-card .card__more::after {
  content: " →";
  display: inline-block;
  transition: transform var(--dur) var(--ease);
}

.page-products .biz-card .card__more:hover::after,
.page-products .biz-card .card__more:focus-visible::after {
  transform: translateX(3px);
}

/* ---------- 区域分布 ---------- */
.page-products .biz-dist__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-products .biz-dist__list {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-products .biz-dist__list li {
  display: grid;
  grid-template-columns: 6.5rem 2.5rem minmax(0, 1fr);
  align-items: center;
  gap: .6rem;
}

.page-products .biz-dist__k {
  font-size: .875rem;
  color: var(--charcoal);
}

.page-products .biz-dist__v {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
  text-align: right;
}

.page-products .biz-dist__bar {
  position: relative;
  display: block;
  height: 10px;
  background: var(--aged);
  border: 1px solid var(--ink);
  overflow: hidden;
}

.page-products .biz-dist__bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  background: var(--red);
}

.page-products .biz-dist__list li:nth-child(1) .biz-dist__bar::after { width: 100%; }
.page-products .biz-dist__list li:nth-child(2) .biz-dist__bar::after { width: 92%; }
.page-products .biz-dist__list li:nth-child(3) .biz-dist__bar::after { width: 73%; }
.page-products .biz-dist__list li:nth-child(4) .biz-dist__bar::after { width: 65%; }
.page-products .biz-dist__list li:nth-child(5) .biz-dist__bar::after { width: 58%; }
.page-products .biz-dist__list li:nth-child(6) .biz-dist__bar::after { width: 54%; }
.page-products .biz-dist__list li:nth-child(7) .biz-dist__bar::after { width: 50%; }

.page-products .biz-dist__figure {
  margin: 0;
}

/* ---------- 编号规则 ---------- */
.page-products .biz-code__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.page-products .biz-code__board {
  margin-top: clamp(1.25rem, 3vw, 1.85rem);
  padding: clamp(1rem, 3vw, 1.85rem);
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--aged);
}

.page-products .biz-code__sample {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  margin: 0 0 1.25rem;
  font-family: var(--mono);
  font-size: clamp(1.5rem, 6.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.1;
}

.page-products .biz-code__seg {
  padding: .08em .3em;
  border: 3px solid var(--ink);
}

.page-products .biz-code__seg--a {
  background: var(--red);
  color: var(--paper);
  border-color: var(--red-deep);
}

.page-products .biz-code__seg--b {
  background: var(--gold);
  color: var(--ink);
}

.page-products .biz-code__seg--c {
  background: var(--paper);
  color: var(--ink);
}

.page-products .biz-code__dash {
  color: var(--charcoal);
}

.page-products .biz-code__legend {
  margin: 0;
}

.page-products .biz-code__row {
  display: grid;
  gap: .3rem;
  padding: .85rem 0;
  border-top: 1px solid var(--hairline);
}

.page-products .biz-code__row:first-child {
  border-top: 2px solid var(--ink);
}

.page-products .biz-code__row dt {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--red);
}

.page-products .biz-code__row dd {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-products .biz-code__note {
  margin: 1rem 0 0;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--charcoal);
  padding-left: .85rem;
  border-left: 3px solid var(--gold);
}

.page-products .biz-code__note code {
  font-family: var(--mono);
  background: var(--gold-soft);
  color: var(--ink);
  padding: .05rem .35rem;
}

.page-products .biz-code__figure {
  margin: 0;
}

/* ---------- 验收三级流程 ---------- */
.page-products .biz-steps {
  display: grid;
  gap: clamp(.75rem, 2vw, 1.1rem);
  margin-top: clamp(1.25rem, 3vw, 1.85rem);
}

.page-products .biz-step {
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--biz-shadow);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .biz-step[open] {
  border-color: var(--red);
  box-shadow: var(--biz-shadow-hover);
}

.page-products .biz-step > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .45rem .9rem;
  padding: 1rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(1.0625rem, 2.6vw, 1.375rem);
  color: var(--ink);
}

.page-products .biz-step > summary::-webkit-details-marker {
  display: none;
}

.page-products .biz-step > summary:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--gold);
}

.page-products .biz-step__no {
  font-family: var(--mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: .12rem .5rem;
  background: var(--ink);
  color: var(--gold);
}

.page-products .biz-step__owner {
  margin-left: auto;
  font-family: var(--sans);
  font-size: .78125rem;
  font-weight: 400;
  letter-spacing: .04em;
  color: var(--charcoal);
}

.page-products .biz-step__body {
  margin: 0 1.1rem 1.1rem;
  padding-top: .9rem;
  border-top: 1px solid var(--gold-line);
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--charcoal);
}

.page-products .biz-step__body p {
  margin: 0;
}

.page-products .biz-step__list {
  list-style: none;
  margin: .8rem 0 0;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-products .biz-step__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .90625rem;
  line-height: 1.75;
}

.page-products .biz-step__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: .5rem;
  height: .5rem;
  background: var(--gold);
  border: 1px solid var(--ink);
}

.page-products .biz-verify__figure {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
}

/* ---------- 批次记录 ---------- */
.page-products .biz-batch__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-products .biz-batch__fields {
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 2px solid var(--ink);
}

.page-products .biz-batch__fields > div {
  background: var(--paper);
  padding: .9rem 1rem;
  display: grid;
  gap: .3rem;
}

.page-products .biz-batch__fields dt {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 1rem;
  color: var(--red);
}

.page-products .biz-batch__fields dd {
  margin: 0;
  font-size: .90625rem;
  line-height: 1.75;
  color: var(--charcoal);
}

.page-products .biz-batch__figure {
  margin: 0;
}

/* ---------- 区域协调点与出口 ---------- */
.page-products .biz-hub__grid {
  display: grid;
  gap: clamp(.85rem, 2.2vw, 1.35rem);
  margin-top: clamp(1.25rem, 3vw, 1.85rem);
}

.page-products .biz-hub__item {
  padding: 1.1rem 1.1rem 1.25rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-left-width: 8px;
  border-left-color: var(--red);
  box-shadow: var(--biz-shadow);
  transition: box-shadow var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.page-products .biz-hub__item:hover {
  border-left-color: var(--gold);
  box-shadow: var(--biz-shadow-hover);
}

.page-products .biz-hub__no {
  display: inline-block;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .1em;
  padding: .12rem .5rem;
  background: var(--aged);
  color: var(--ink);
}

.page-products .biz-hub__name {
  margin: .6rem 0 .45rem;
  font-family: var(--serif);
  font-weight: 800;
  font-size: 1.125rem;
}

.page-products .biz-hub__item p {
  margin: 0;
  font-size: .90625rem;
  line-height: 1.78;
  color: var(--charcoal);
}

.page-products .biz-hub__out {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.1rem, 3vw, 1.75rem);
  background: var(--ink);
  color: var(--paper);
  display: grid;
  gap: 1rem;
  border-left: 8px solid var(--gold);
}

.page-products .biz-hub__lead {
  margin: 0;
  max-width: 40em;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--on-dark-dim);
}

.page-products .biz-hub__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.25rem;
}

.page-products .biz-hub__textlink {
  color: var(--gold);
  font-size: .9375rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  padding-bottom: .1rem;
}

.page-products .biz-hub__textlink:hover,
.page-products .biz-hub__textlink:focus-visible {
  border-bottom-color: var(--gold);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-products .biz-query__head {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .page-products .biz-dist__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-products .biz-code__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-products .biz-batch__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .page-products .biz-code__row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: 1.25rem;
    align-items: baseline;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-products .biz-hero {
    --biz-sticky-top: 0px;
  }

  .page-products .biz-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .biz-step:nth-child(1) {
    margin-right: 18%;
  }

  .page-products .biz-step:nth-child(2) {
    margin-right: 9%;
  }

  .page-products .biz-step:nth-child(3) {
    margin-right: 0;
  }

  .page-products .biz-hub__out {
    grid-template-columns: minmax(0, 1.6fr) auto;
    align-items: center;
  }

  .page-products .biz-hub__links {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .biz-card,
  .page-products .biz-card .card__more::after,
  .page-products .biz-chip,
  .page-products .biz-step,
  .page-products .biz-hub__item {
    transition: none;
  }

  .page-products .biz-card:hover,
  .page-products .biz-card:focus-within {
    transform: none;
  }
}