.page-products {
  --prod-hair: 1px solid var(--sand);
  --prod-pad: clamp(20px, 4vw, 36px);
  background:
    radial-gradient(115% 62% at 100% -8%, var(--mist) 0%, rgba(220, 235, 230, 0) 58%),
    var(--cream);
  color: var(--ink);
}

.page-products .breadcrumbs { padding-top: clamp(14px, 3vw, 26px); }

.page-products .prod-hero { padding: clamp(14px, 3vw, 26px) 0 clamp(34px, 6vw, 68px); }

.page-products .prod-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-products .prod-hero h1 {
  margin: 10px 0 18px;
  font-size: clamp(34px, 7vw, 60px);
  line-height: 1.1;
  letter-spacing: -.02em;
  font-weight: 800;
}

.page-products .prod-hero h1 em {
  font-style: normal;
  color: var(--celadon);
  box-shadow: inset 0 -.18em 0 rgba(201, 168, 106, .45);
}

.page-products .lead {
  font-size: clamp(15.5px, 2vw, 17.5px);
  line-height: 1.9;
  color: var(--ink-80);
  max-width: 34em;
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .prod-hero__quick {
  display: grid;
  gap: 12px;
  margin: 30px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: var(--prod-hair);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-60);
  letter-spacing: .02em;
}

.page-products .prod-hero__quick b {
  display: block;
  margin-bottom: 2px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .prod-figure {
  margin: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--mist);
  box-shadow: var(--shadow-soft);
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .prod-hero__figure::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(201, 168, 106, .55);
  border-radius: calc(var(--radius) - 10px);
  pointer-events: none;
}

.page-products .prod-hero__figure img { aspect-ratio: 4 / 3; }

.page-products .section { padding: clamp(34px, 6vw, 70px) 0; }
.page-products .section--tight { padding-bottom: clamp(48px, 8vw, 96px); }

.page-products .prod-head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-products .prod-head h2,
.page-products .railsec__text h2,
.page-products .versions__text h2,
.page-products .prod-tail h2 {
  margin: 8px 0 14px;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.2;
  letter-spacing: -.01em;
  font-weight: 800;
}

.page-products .prod-head p,
.page-products .railsec__text p,
.page-products .versions__text p {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink-80);
}

.page-products .prod-sticky {
  display: none;
  margin-bottom: clamp(20px, 3vw, 32px);
  padding: 12px 12px 12px 20px;
  border: var(--prod-hair);
  border-radius: 999px;
  background: rgba(248, 242, 231, .88);
  box-shadow: var(--shadow-soft);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-80);
}

.page-products .types {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .type {
  position: relative;
  padding: 22px 22px 20px;
  border: var(--prod-hair);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .66);
  transition: transform .33s var(--ease), box-shadow .33s var(--ease);
}

.page-products .type:nth-child(3n+2) { background: var(--mist); }
.page-products .type:nth-child(3n+3) { background: rgba(255, 255, 255, .92); }

.page-products .type__idx {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--celadon);
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(47, 111, 99, .34);
}

.page-products .type__title {
  margin: 12px 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-products .type__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-80);
}

.page-products .theme-intro {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  align-items: end;
  margin-bottom: clamp(22px, 4vw, 34px);
}

.page-products .theme-intro .prod-head { margin-bottom: 0; }
.page-products .prod-theme__figure img { aspect-ratio: 5 / 4; }

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

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

.page-products .filter__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-products .filter__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: var(--prod-hair);
  border-radius: 999px;
  background: rgba(255, 255, 255, .6);
  color: var(--ink-80);
  font-size: 13px;
  letter-spacing: .05em;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-products .filter__chip .numeric {
  font-size: 11px;
  color: var(--lake);
}

.page-products .filter__chip:hover { border-color: rgba(47, 111, 99, .45); }

.page-products #pf-all:checked ~ .filter__row .filter__chip[for="pf-all"],
.page-products #pf-brand:checked ~ .filter__row .filter__chip[for="pf-brand"],
.page-products #pf-use:checked ~ .filter__row .filter__chip[for="pf-use"],
.page-products #pf-case:checked ~ .filter__row .filter__chip[for="pf-case"],
.page-products #pf-ver:checked ~ .filter__row .filter__chip[for="pf-ver"] {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--cream);
}

.page-products #pf-all:checked ~ .filter__row .filter__chip[for="pf-all"] .numeric,
.page-products #pf-brand:checked ~ .filter__row .filter__chip[for="pf-brand"] .numeric,
.page-products #pf-use:checked ~ .filter__row .filter__chip[for="pf-use"] .numeric,
.page-products #pf-case:checked ~ .filter__row .filter__chip[for="pf-case"] .numeric,
.page-products #pf-ver:checked ~ .filter__row .filter__chip[for="pf-ver"] .numeric {
  color: var(--gold);
}

.page-products #pf-all:focus-visible ~ .filter__row .filter__chip[for="pf-all"],
.page-products #pf-brand:focus-visible ~ .filter__row .filter__chip[for="pf-brand"],
.page-products #pf-use:focus-visible ~ .filter__row .filter__chip[for="pf-use"],
.page-products #pf-case:focus-visible ~ .filter__row .filter__chip[for="pf-case"],
.page-products #pf-ver:focus-visible ~ .filter__row .filter__chip[for="pf-ver"] {
  outline: 2px solid var(--lake);
  outline-offset: 2px;
}

.page-products #pf-brand:checked ~ .catgrid .catcard:not(.catcard--brand),
.page-products #pf-use:checked ~ .catgrid .catcard:not(.catcard--use),
.page-products #pf-case:checked ~ .catgrid .catcard:not(.catcard--case),
.page-products #pf-ver:checked ~ .catgrid .catcard:not(.catcard--ver) {
  display: none;
}

.page-products .catgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

.page-products .catcard {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 22px 18px;
  border: var(--prod-hair);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .9);
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}

.page-products .catcard:nth-child(3n+1) { background: rgba(220, 235, 230, .55); }
.page-products .catcard:nth-child(3n+2) { background: rgba(255, 255, 255, .92); }
.page-products .catcard:nth-child(3n+3) { background: rgba(248, 242, 231, .95); }

.page-products .catcard__top {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-products .catcard__idx {
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--coral);
}

.page-products .catcard__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-products .catcard__desc {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--ink-80);
}

.page-products .catcard__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .catcard .tag {
  font-size: 10.5px;
  letter-spacing: .12em;
  padding: 3px 8px;
}

.page-products .catcard__more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--sand);
  font-size: 12.5px;
}

.page-products .catcard__more summary {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  color: var(--lake);
  letter-spacing: .04em;
}

.page-products .catcard__more summary::-webkit-details-marker { display: none; }

.page-products .catcard__more summary::after {
  content: "＋";
  color: var(--celadon);
}

.page-products .catcard__more[open] summary::after { content: "－"; }

.page-products .catcard__more p {
  margin: 8px 0 0;
  line-height: 1.75;
  color: var(--ink-60);
}

.page-products .railsec {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-products .rail-demo {
  padding: 16px;
  border-radius: var(--radius);
  background: linear-gradient(165deg, var(--ink) 0%, var(--ink-deep) 100%);
  box-shadow: var(--shadow-soft);
  color: var(--cream);
}

.page-products .rail-demo__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px 14px;
  border-bottom: 1px solid rgba(248, 242, 231, .18);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cream-60);
}

.page-products .rail-demo__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--coral);
}

.page-products .rail-demo__list {
  display: grid;
  gap: 2px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .rail-demo__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 13.5px;
  color: var(--cream-80);
}

.page-products .rail-demo__item.is-current {
  background: rgba(220, 235, 230, .16);
  color: #fff;
  box-shadow: inset 3px 0 0 var(--celadon);
}

.page-products .rail-demo__idx {
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-products .railsec__points {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .railsec__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-80);
}

.page-products .railsec__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--celadon);
}

.page-products .railsec__points strong {
  color: var(--ink);
  font-weight: 700;
}

.page-products .railsec__link {
  margin-top: 18px;
  font-size: 14px;
  color: var(--ink-60);
}

.page-products .railsec__link a,
.page-products .replay__note a,
.page-products .versions__text a {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 110, 143, .35);
  padding-bottom: 1px;
}

.page-products .railsec__link a:hover,
.page-products .replay__note a:hover,
.page-products .versions__text a:hover { border-bottom-color: var(--lake); }

.page-products .prod-replay__figure { margin-bottom: clamp(24px, 4vw, 38px); }
.page-products .prod-replay__figure img { aspect-ratio: 16 / 10; }

.page-products .path__steps {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .path__step {
  position: relative;
  padding: 20px 20px 18px;
  border: var(--prod-hair);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .86);
}

.page-products .path__step::after {
  content: "";
  position: absolute;
  left: 34px;
  bottom: -18px;
  width: 0;
  height: 18px;
  border-left: 2px dashed var(--sand);
}

.page-products .path__step:last-child::after { display: none; }

.page-products .path__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--celadon);
  background: var(--cream);
  color: var(--celadon);
  font-size: 11.5px;
  letter-spacing: .04em;
}

.page-products .path__num--start {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--cream);
}

.page-products .path__num--action {
  background: var(--coral);
  border-color: var(--coral);
  color: #fff;
}

.page-products .path__title {
  margin: 12px 0 6px;
  font-size: 16.5px;
  font-weight: 700;
}

.page-products .path__desc {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--ink-80);
}

.page-products .replay__note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-60);
}

.page-products .versions {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-products .versions__text p + p { margin-top: 14px; }

.page-products .timeline {
  margin: 0;
  padding: 4px 0 4px 22px;
  list-style: none;
  border-left: 1px solid var(--sand);
  display: grid;
  gap: 24px;
}

.page-products .timeline li { position: relative; }

.page-products .timeline li::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--celadon);
  box-shadow: 0 0 0 4px rgba(47, 111, 99, .14);
}

.page-products .timeline li:nth-child(2)::before { background: var(--coral); box-shadow: 0 0 0 4px rgba(200, 83, 51, .14); }

.page-products .timeline__when {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--lake);
}

.page-products .timeline__title {
  margin: 6px 0 6px;
  font-size: 17px;
  font-weight: 700;
}

.page-products .timeline__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-80);
}

.page-products .scenes__track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 2px 18px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-products .scene {
  flex: 0 0 82%;
  max-width: 350px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border: var(--prod-hair);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .92);
}

.page-products .scene:nth-child(2) { background: var(--mist); }
.page-products .scene:nth-child(3) { background: rgba(248, 242, 231, .96); }

.page-products .scene__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--coral);
}

.page-products .scene__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
}

.page-products .scene__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--ink-80);
}

.page-products .scene__list li {
  padding-left: 16px;
  position: relative;
}

.page-products .scene__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 1px;
  background: var(--lake);
}

.page-products .scene .btn { margin-top: auto; align-self: flex-start; }

.page-products .prod-scene__figure { margin-top: clamp(20px, 3vw, 32px); }
.page-products .prod-scene__figure img { aspect-ratio: 3 / 2; }

.page-products .prod-tail {
  display: grid;
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-deep) 55%, var(--indigo) 100%);
  color: var(--cream);
  box-shadow: var(--shadow-soft);
}

.page-products .prod-tail__text { padding: var(--prod-pad) var(--prod-pad) calc(var(--prod-pad) + 4px); }

.page-products .prod-tail .label { color: var(--gold); }

.page-products .prod-tail h2 { color: var(--cream); }

.page-products .prod-tail p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--cream-80);
  max-width: 34em;
}

.page-products .prod-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .prod-tail__figure {
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.page-products .prod-tail__figure img {
  aspect-ratio: 4 / 3;
  height: 100%;
}

@media (hover: hover) and (pointer: fine) {
  .page-products .type:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
  }
  .page-products .catcard:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
  }
}

@media (min-width: 620px) {
  .page-products .types { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .catgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .prod-hero__quick { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .scene { flex: 0 0 52%; }
}

@media (min-width: 900px) {
  .page-products .prod-sticky {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: sticky;
    top: calc(var(--bar-h) + 10px);
    z-index: 6;
    backdrop-filter: blur(8px);
  }

  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .72fr);
  }

  .page-products .prod-hero__figure img { aspect-ratio: 4 / 5; }

  .page-products .theme-intro {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-products .railsec {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }

  .page-products .versions {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  }

  .page-products .path__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-products .path__step {
    padding: 22px 18px 20px;
  }

  .page-products .path__step::after {
    left: auto;
    right: -16px;
    top: 34px;
    bottom: auto;
    width: 16px;
    height: 0;
    border-left: 0;
    border-top: 2px dashed var(--sand);
  }

  .page-products .scene { flex: 0 0 33%; max-width: none; }

  .page-products .prod-tail {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: stretch;
  }

  .page-products .prod-tail__figure img { aspect-ratio: auto; min-height: 100%; }
}

@media (min-width: 1080px) {
  .page-products .types { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .catgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .catcard:nth-child(3n+2) { margin-top: 16px; }
  .page-products .catcard:nth-child(3n) { margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .type,
  .page-products .catcard,
  .page-products .filter__chip {
    transition: none;
  }
  .page-products .type:hover,
  .page-products .catcard:hover {
    transform: none;
  }
}
<<<END>>>