.page-products {
  --prod-gap: clamp(1rem, 2.4vw, 1.6rem);
  --prod-shadow: 8px 8px 0 var(--night-deep);
  --prod-edge: var(--border) solid var(--slate);
  color: var(--snow);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(31, 182, 166, .15), transparent 62%),
    radial-gradient(760px 480px at 2% 4%, rgba(242, 193, 78, .09), transparent 60%),
    var(--night);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(2.5rem, 6vw, 4rem);
}

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .prod-hero h1 {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.95rem, 7vw, 3.55rem);
  line-height: 1.1;
  letter-spacing: -.015em;
  text-wrap: balance;
}

.page-products .prod-hero h1 span {
  display: block;
  color: var(--gold);
}

.page-products .prod-hero__main .lead {
  max-width: 34em;
}

.page-products .prod-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: clamp(1.25rem, 3vw, 2rem);
}

.page-products .prod-hero__panel {
  border: var(--prod-edge);
  border-left: 6px solid var(--teal);
  background: linear-gradient(165deg, rgba(42, 58, 77, .85), rgba(7, 17, 31, .92));
  box-shadow: var(--prod-shadow);
  padding: clamp(1.1rem, 3vw, 1.5rem);
}

.page-products .prod-panel__label {
  margin: 0 0 .9rem;
  font-size: .76rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-products .prod-index {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-products .prod-index li {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) auto;
  align-items: baseline;
  gap: .55rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid rgba(124, 147, 168, .28);
}

.page-products .prod-index__num {
  font-size: .82rem;
  color: var(--teal);
}

.page-products .prod-index__name {
  font-family: var(--font-display);
  font-size: 1.02rem;
}

.page-products .prod-index__meta {
  font-size: .74rem;
  color: var(--steel);
  text-align: right;
}

.page-products .prod-panel__link {
  display: inline-block;
  font-size: .88rem;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 1px;
}

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

/* ---------- 四个入口 ---------- */
.page-products .prod-entries {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--prod-gap);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .card.prod-entry {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  border: var(--prod-edge);
  border-radius: 0;
  background: linear-gradient(175deg, rgba(42, 58, 77, .58), rgba(10, 26, 47, .92));
  box-shadow: var(--prod-shadow);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-products .card.prod-entry:hover {
  border-color: var(--teal-deep);
}

.page-products .prod-entry__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
}

.page-products .prod-entry__num {
  font-size: 1.55rem;
  line-height: 1;
  color: var(--steel);
}

.page-products .card.prod-entry .card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.32;
  font-weight: 700;
}

.page-products .prod-entry p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, .82);
}

.page-products .prod-entry__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .4rem;
  font-size: .87rem;
  line-height: 1.7;
  color: rgba(243, 239, 230, .72);
}

.page-products .prod-entry__list li {
  position: relative;
  padding-left: 1.1rem;
}

.page-products .prod-entry__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: .5rem;
  height: 2px;
  background: var(--teal);
}

.page-products .prod-entry__hint {
  margin: 0;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-products .prod-entry__media {
  margin: 0;
  border: var(--border) solid var(--char);
}

.page-products .prod-entry__media .img-frame__media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-products .prod-entry--c .prod-entry__media .img-frame__media {
  aspect-ratio: 4 / 3;
}

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

/* ---------- 版本体系 ---------- */
.page-products .prod-versions__art {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(1rem, 3vw, 1.6rem);
  border: var(--border) solid var(--char);
  box-shadow: var(--prod-shadow);
}

.page-products .prod-versions__art .img-frame__media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-products .prod-rail-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .35rem 1rem;
  margin-bottom: .7rem;
  font-size: .78rem;
  color: var(--steel);
}

.page-products .prod-rail-head .mono {
  color: var(--gold);
  letter-spacing: .06em;
}

.page-products .prod-rail-hint {
  color: var(--steel);
}

.page-products .prod-rail {
  list-style: none;
  display: flex;
  gap: var(--prod-gap);
  margin: 0;
  padding: .25rem 0 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--teal-deep) transparent;
}

.page-products .prod-rail::-webkit-scrollbar {
  height: 6px;
}

.page-products .prod-rail::-webkit-scrollbar-thumb {
  background: var(--teal-deep);
}

.page-products .prod-ver {
  flex: 0 0 clamp(232px, 76vw, 292px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: clamp(.9rem, 2vw, 1.15rem);
  border: var(--prod-edge);
  background: rgba(42, 58, 77, .45);
  box-shadow: 6px 6px 0 var(--night-deep);
}

.page-products .prod-ver__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--gold);
}

.page-products .prod-ver__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
}

.page-products .prod-ver__use {
  margin: 0;
  font-size: .87rem;
  line-height: 1.7;
  color: rgba(243, 239, 230, .78);
}

.page-products .prod-ver__details {
  margin-top: auto;
  padding-top: .5rem;
  border-top: 1px solid rgba(124, 147, 168, .3);
  font-size: .82rem;
  color: var(--steel);
}

.page-products .prod-ver__details summary {
  cursor: pointer;
  list-style: none;
  padding: .2rem 0;
  color: var(--teal);
}

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

.page-products .prod-ver__details summary::after {
  content: " +";
}

.page-products .prod-ver__details[open] summary::after {
  content: " −";
}

.page-products .prod-ver__details p {
  margin: .4rem 0 0;
  line-height: 1.7;
}

/* ---------- 下载路径 ---------- */
.page-products .prod-download {
  border-top: var(--border) solid var(--slate);
  border-bottom: var(--border) solid var(--slate);
  background:
    linear-gradient(120deg, rgba(14, 127, 120, .22), transparent 55%),
    var(--night-deep);
}

.page-products .prod-download__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .prod-download__main p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, .82);
}

.page-products .prod-steps {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.8rem) 0 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-products .prod-steps li {
  display: grid;
  grid-template-columns: 2.3rem minmax(0, 1fr);
  gap: .75rem;
  align-items: start;
  font-size: .93rem;
  line-height: 1.75;
  color: rgba(243, 239, 230, .84);
}

.page-products .prod-steps .mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1.9rem;
  border: var(--border) solid var(--teal-deep);
  color: var(--teal);
  font-size: .78rem;
}

.page-products .prod-download__note {
  margin-top: clamp(1.25rem, 3vw, 1.6rem) !important;
  padding-left: .9rem;
  border-left: 3px solid var(--gold);
  font-size: .87rem !important;
  color: rgba(243, 239, 230, .7) !important;
}

.page-products .prod-dlcard {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: var(--border) solid var(--gold);
  background: linear-gradient(170deg, rgba(242, 193, 78, .14), rgba(7, 17, 31, .92));
  box-shadow: 8px 8px 0 rgba(242, 193, 78, .22);
}

.page-products .prod-dlcard__eyebrow {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-products .prod-dlcard h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 2.6vw, 1.45rem);
  line-height: 1.32;
}

.page-products .prod-dlcard p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.75;
  color: rgba(243, 239, 230, .8);
}

.page-products .prod-progress {
  list-style: none;
  margin: .15rem 0 .25rem;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-products .prod-progress__step {
  padding: .5rem .7rem;
  font-size: .81rem;
  border: 1px solid rgba(124, 147, 168, .38);
  color: var(--steel);
}

.page-products .prod-progress__step.is-done {
  color: var(--snow);
  border-color: var(--teal-deep);
  background: linear-gradient(90deg, rgba(31, 182, 166, .38), rgba(31, 182, 166, .08));
}

/* ---------- 使用场景 ---------- */
.page-products .prod-scen {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .prod-scen__intro p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, .8);
}

.page-products .prod-scen__media {
  margin: clamp(1.25rem, 3vw, 1.8rem) 0 0;
  border: var(--border) solid var(--char);
  box-shadow: var(--prod-shadow);
}

.page-products .prod-scen__media .img-frame__media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-products .prod-scen__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-products .prod-scen__list li {
  border-left: 3px solid var(--teal);
  padding: .35rem 0 .35rem .9rem;
}

.page-products .prod-scen__list h3 {
  margin: 0 0 .25rem;
  font-family: var(--font-display);
  font-size: 1.04rem;
}

.page-products .prod-scen__list p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.75;
  color: rgba(243, 239, 230, .78);
}

/* ---------- 更新节奏 ---------- */
.page-products .prod-cad {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--prod-gap);
}

.page-products .prod-cad__item {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding-top: .9rem;
  border-top: 4px solid var(--gold);
}

.page-products .prod-cad__figure {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--gold);
}

.page-products .prod-cad__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: .98rem;
}

.page-products .prod-cad__item p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.7;
  color: rgba(243, 239, 230, .72);
}

/* ---------- 下一步 ---------- */
.page-products .prod-next {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  padding-top: clamp(1.5rem, 4vw, 2rem);
  border-top: var(--border) solid var(--slate);
}

.page-products .prod-next__text {
  margin: 0;
  max-width: 40ch;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(243, 239, 230, .78);
}

.page-products .prod-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

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

@media (min-width: 760px) {
  .page-products .prod-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-products .prod-download__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 1000px) {
  .page-products .prod-cad {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-products .prod-entries {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .prod-entry--a {
    grid-column: span 7;
  }

  .page-products .prod-entry--b {
    grid-column: span 5;
  }

  .page-products .prod-entry--c {
    grid-column: span 5;
  }

  .page-products .prod-entry--d {
    grid-column: span 7;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .card.prod-entry {
    transition: none;
  }
}
<<<END>>>