.page-products {
  --prod-rule: 1px solid rgba(107, 74, 47, .26);
  --prod-rule-dark: 1px solid rgba(245, 237, 225, .2);
  --prod-gap: clamp(1rem, 2.4vw, 1.75rem);
  position: relative;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .offer-hero {
  position: relative;
  padding-top: calc(var(--header-h) + 3.2rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
  background:
    radial-gradient(120% 88% at 84% 6%, rgba(242, 193, 78, .26), transparent 58%),
    linear-gradient(158deg, #7c1f15 0%, #8E2419 46%, #5c1710 100%);
  color: var(--board);
}
.page-products .offer-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 9px;
  background: repeating-linear-gradient(90deg,
    var(--deep-red) 0 42px,
    var(--flag-red) 42px 84px,
    var(--ochre) 84px 126px,
    var(--butter) 126px 168px,
    var(--tk-blue) 168px 210px,
    var(--tk-green) 210px 252px);
}
.page-products .offer-hero__grid {
  display: grid;
  gap: clamp(1.8rem, 4.5vw, 3.2rem);
  grid-template-columns: 1fr;
}
.page-products .offer-hero .breadcrumb {
  color: rgba(245, 237, 225, .72);
  font-size: .8125rem;
  margin-bottom: 1.1rem;
}
.page-products .offer-hero .breadcrumb a {
  color: rgba(245, 237, 225, .88);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, .5);
}
.page-products .offer-hero .eyebrow {
  color: var(--butter);
  letter-spacing: .16em;
}
.page-products .offer-hero .display {
  color: var(--board);
  margin: .55rem 0 1rem;
  max-width: 16ch;
}
.page-products .offer-hero .lede {
  color: rgba(245, 237, 225, .86);
  max-width: 60ch;
  margin: 0;
}
.page-products .offer-hero__plate {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: clamp(1.1rem, 2.6vw, 1.6rem) clamp(1.1rem, 2.6vw, 1.5rem);
  border: var(--prod-rule-dark);
  background: rgba(28, 20, 16, .3);
  align-self: end;
  box-shadow: 0 18px 36px -24px rgba(28, 20, 16, .9);
}
.page-products .offer-hero__plate-no {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--butter);
  letter-spacing: .04em;
}
.page-products .offer-hero__plate-sub {
  font-size: .8125rem;
  color: rgba(245, 237, 225, .8);
  letter-spacing: .18em;
}
.page-products .offer-hero__plate-note {
  font-size: .8125rem;
  line-height: 1.7;
  color: rgba(245, 237, 225, .72);
  padding-top: .6rem;
  border-top: var(--prod-rule-dark);
}

/* ---------- 通用小节头 ---------- */
.page-products .sec-head {
  max-width: 60ch;
  margin-bottom: clamp(1.4rem, 3vw, 2.1rem);
}
.page-products .sec-head .eyebrow {
  color: var(--wood);
  letter-spacing: .16em;
}
.page-products .sec-head .h2 {
  margin: .45rem 0 .7rem;
}
.page-products .sec-head .lede {
  margin: 0;
}
.page-products .sec-head--dark .eyebrow { color: var(--butter); }
.page-products .sec-head--dark .h2 { color: var(--board); }
.page-products .sec-head--dark .lede { color: rgba(245, 237, 225, .82); }

/* ---------- 栏目总览 ---------- */
.page-products .lanes-band {
  background: var(--board);
}
.page-products .lane-grid {
  display: grid;
  gap: var(--prod-gap);
  grid-template-columns: 1fr;
}
.page-products .lane {
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
}
.page-products .lane .card__title {
  margin: .5rem 0 .65rem;
}
.page-products .lane__facts {
  margin: 1.1rem 0 0;
  display: grid;
  gap: .5rem;
}
.page-products .lane__fact {
  display: flex;
  gap: .8rem;
  align-items: baseline;
  border-top: var(--prod-rule);
  padding-top: .55rem;
}
.page-products .lane__fact dt {
  flex: 0 0 auto;
  min-width: 4.4rem;
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--wood);
}
.page-products .lane__fact dd {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink);
}
.page-products .lane-figure {
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
}

/* ---------- 双端切换 ---------- */
.page-products .devices-band {
  background: linear-gradient(180deg, #fdf3dc 0%, #f8e8c8 100%);
  border-top: var(--prod-rule);
  border-bottom: var(--prod-rule);
}
.page-products .device-tabs {
  margin-top: clamp(.9rem, 2.4vw, 1.4rem);
}
.page-products .device-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding-bottom: .7rem;
  border-bottom: var(--prod-rule);
}
.page-products .device-tabs .tab-btn {
  appearance: none;
  border: 1px solid rgba(107, 74, 47, .42);
  background: rgba(251, 246, 238, .78);
  color: var(--ink);
  font-family: var(--mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: .62rem 1.3rem;
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.page-products .device-tabs .tab-btn:hover {
  border-color: var(--wood);
  background: var(--paper);
}
.page-products .device-tabs .tab-btn[aria-selected="true"] {
  background: var(--butter);
  border-color: var(--wood);
  color: var(--ink);
}
.page-products .device-tabs .tab-btn:focus-visible {
  outline: 2px solid var(--tk-blue);
  outline-offset: 2px;
}
.page-products .device-tabs .tab-panel {
  padding-top: clamp(1.2rem, 3vw, 2rem);
}
.page-products .device-tabs .tab-panel[hidden] {
  display: none;
}
.page-products .panel-grid {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2.4rem);
  grid-template-columns: 1fr;
}
.page-products .panel-copy .h3 {
  margin: 0 0 .75rem;
}
.page-products .panel-copy p {
  margin: 0 0 .85rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
}
.page-products .shot-mobile {
  max-width: 300px;
  margin-inline: auto;
}

/* ---------- 走法步骤 ---------- */
.page-products .walk {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}
.page-products .walk__step {
  display: flex;
  gap: .7rem;
  align-items: baseline;
  border-top: var(--prod-rule);
  padding-top: .55rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink);
}
.page-products .walk__no {
  flex: 0 0 auto;
  font-size: .78rem;
  font-weight: 700;
  color: var(--deep-red);
  letter-spacing: .06em;
}
.page-products .walk__label a {
  color: var(--tk-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 111, 120, .45);
}
.page-products .walk__label a:hover {
  border-bottom-color: var(--tk-blue);
}
.page-products .walk--row {
  grid-template-columns: 1fr;
}
.page-products .walk--row .walk__step {
  border-top: 0;
  padding-top: 0;
}

/* ---------- 三条版本线 ---------- */
.page-products .version-lines {
  background: var(--board);
}
.page-products .line-list {
  display: grid;
  gap: .6rem;
}
.page-products .line-item {
  border: var(--prod-rule);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}
.page-products .line-item__sum {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: .95rem 1.1rem;
  cursor: pointer;
  list-style: none;
}
.page-products .line-item__sum::-webkit-details-marker { display: none; }
.page-products .line-item__sum::after {
  content: "▾";
  margin-left: .5rem;
  color: var(--ochre);
  font-size: .85rem;
  transition: transform .2s var(--ease);
}
.page-products .line-item[open] .line-item__sum::after {
  transform: rotate(180deg);
}
.page-products .line-item__code {
  min-width: 3rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--deep-red);
  letter-spacing: .04em;
}
.page-products .line-item__name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--ink);
}
.page-products .line-item__hint {
  margin-left: auto;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--stone);
  text-align: right;
}
.page-products .line-item__body {
  padding: 0 1.1rem 1.1rem;
  border-top: var(--prod-rule);
}
.page-products .line-item__body p {
  margin: .9rem 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
}
.page-products .lines-figure {
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
}

/* ---------- 版本卡片四项 ---------- */
.page-products .version-card-band {
  position: relative;
  background: var(--ink);
  color: var(--board);
}
.page-products .version-card-band::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(245, 237, 225, .035) 0 2px, transparent 2px 5px);
}
.page-products .version-card-band > .wrap {
  position: relative;
  z-index: 1;
}
.page-products .card-figure {
  margin: 0 0 clamp(1.5rem, 3.6vw, 2.4rem);
}
.page-products .fact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
  grid-template-columns: 1fr;
}
.page-products .fact {
  border: var(--prod-rule-dark);
  background: rgba(245, 237, 225, .04);
  padding: 1.1rem 1.1rem 1.3rem;
}
.page-products .fact__no {
  display: block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--butter);
}
.page-products .fact__title {
  margin: .5rem 0 .55rem;
  font-family: var(--serif);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--board);
}
.page-products .fact__body {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(245, 237, 225, .8);
}

/* ---------- 找旧版本两条路 ---------- */
.page-products .path-band {
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(242, 193, 78, .2), transparent 60%),
    var(--deep-red);
  color: var(--board);
}
.page-products .path-grid {
  display: grid;
  gap: var(--prod-gap);
  grid-template-columns: 1fr;
}
.page-products .path-card {
  border: var(--prod-rule-dark);
  background: rgba(28, 20, 16, .28);
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
}
.page-products .path-card__tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink);
  background: var(--butter);
  padding: .3rem .7rem;
}
.page-products .path-card__title {
  margin: .85rem 0 .2rem;
  color: var(--board);
}
.page-products .path-card .walk__step {
  border-top-color: rgba(245, 237, 225, .2);
  color: rgba(245, 237, 225, .86);
}
.page-products .path-card .walk__no {
  color: var(--butter);
}
.page-products .path-card .walk__label a {
  color: var(--butter);
  border-bottom-color: rgba(242, 193, 78, .5);
}
.page-products .path-card__fit {
  margin: 1.1rem 0 0;
  padding-top: .8rem;
  border-top: var(--prod-rule-dark);
  font-size: .875rem;
  line-height: 1.75;
  color: rgba(245, 237, 225, .72);
}
.page-products .path-note {
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(245, 237, 225, .8);
}
.page-products .path-note a {
  color: var(--butter);
  border-bottom: 1px solid rgba(242, 193, 78, .5);
  text-decoration: none;
}

/* ---------- 底部提示条 ---------- */
.page-products .entry-note {
  background: var(--paper);
  border-top: var(--prod-rule);
  padding: clamp(1.3rem, 3vw, 1.9rem) 0;
}
.page-products .entry-note__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.page-products .entry-note__txt {
  margin: 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .lane-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .fact-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .path-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 880px) {
  .page-products .panel-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
  }
  .page-products .panel-grid--flip {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
  .page-products .walk--row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .6rem 1.4rem;
  }
}

@media (min-width: 960px) {
  .page-products .offer-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
  .page-products .fact-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-products .walk--row { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition: none !important;
    animation: none !important;
  }
}
</final>