.page-products {
  --prod-axis: var(--blue);
  --prod-gap: clamp(16px, 2.4vw, 28px);
  background: var(--paper);
  color: var(--rock);
}

/* ── 首屏 ───────────────────────────────────── */
.page-products .prod-hero {
  background: var(--stone);
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(38px, 6vw, 74px);
}

.page-products .prod-hero-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(14px, 2.4vw, 24px);
}

.page-products .prod-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-products .prod-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.08;
  font-weight: 300;
  letter-spacing: -.01em;
  color: var(--rock);
  max-width: 17ch;
}

.page-products .prod-hero .lede {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-products .prod-hero-aside {
  border-top: 1px solid var(--line-strong);
  padding-top: 14px;
}

.page-products .prod-aside-label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--ink-mute);
}

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

.page-products .prod-index .index-map-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 5px 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--rock);
  text-decoration: none;
  border-radius: 2px;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.page-products .prod-index .index-map-link:hover,
.page-products .prod-index .index-map-link:focus-visible,
.page-products .prod-index .index-map-link.is-active {
  background: var(--orange);
  color: #1d2429;
  outline: none;
}

.page-products .prod-index .index-map-num {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-mute);
}

.page-products .prod-index .index-map-link:hover .index-map-num,
.page-products .prod-index .index-map-link.is-active .index-map-num {
  color: rgba(29, 36, 41, .7);
}

/* ── 左右对照卡 ─────────────────────────────── */
.page-products .prod-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--prod-gap);
  margin-top: clamp(26px, 4vw, 48px);
}

.page-products .prod-compare .compare-axis {
  position: relative;
  display: none;
}

.page-products .prod-ver {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(16px, 2vw, 26px);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-paper);
}

.page-products .prod-ver--stable {
  border-top: 3px solid var(--orange);
}

.page-products .prod-ver--light {
  border-top: 3px solid var(--blue);
}

.page-products .label-skew {
  display: inline-block;
  width: fit-content;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
  transform: skewX(-4deg);
}

.page-products .prod-skew--orange {
  background: var(--orange);
  color: #1d2429;
}

.page-products .prod-skew--blue {
  background: var(--blue);
  color: #ffffff;
}

.page-products .prod-skew--clay {
  background: var(--clay);
  color: var(--silver);
}

.page-products .prod-ver > .label-skew {
  align-self: flex-start;
}

.page-products .prod-ver-title {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 25px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--rock);
}

.page-products .prod-ver-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-products .prod-ver-figure {
  margin: 0;
}

.page-products .prod-ver-figure .figure-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--stone);
}

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

.page-products .prod-ver-figure--phone .figure-frame {
  width: min(230px, 100%);
  aspect-ratio: 480 / 900;
  margin: 0 auto;
}

.page-products .prod-ver-figure--phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.page-products .prod-ver-list {
  list-style: none;
  margin: auto 0 0;
  padding: 14px 0 0;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-products .prod-ver-list li {
  position: relative;
  padding-left: 16px;
}

.page-products .prod-ver-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--orange);
  transform: skewX(-14deg);
}

.page-products .prod-ver--light .prod-ver-list li::before {
  background: var(--blue);
}

/* ── 通道说明 ───────────────────────────────── */
.page-products .prod-channel-list {
  margin-top: clamp(18px, 3vw, 30px);
  border-bottom: 1px solid var(--line-strong);
}

.page-products .prod-channel-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--line-strong);
}

.page-products .prod-channel-row h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--rock);
}

.page-products .prod-channel-row p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-products .prod-channel-figure {
  margin: clamp(22px, 3.4vw, 36px) 0 0;
}

.page-products .prod-channel-figure .figure-frame {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-paper);
  background: var(--stone);
}

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

/* ── 差异对照 ───────────────────────────────── */
.page-products .prod-diff {
  background: var(--paper);
}

.page-products .prod-diff-legend {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.page-products .prod-legend-vs {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-mute);
}

.page-products .prod-diff-figure {
  margin: clamp(18px, 3vw, 28px) 0 0;
  max-width: 720px;
}

.page-products .prod-diff-figure .figure-frame {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--stone);
}

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

.page-products .prod-diff-stack {
  margin-top: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line-strong);
}

.page-products .prod-diff-group {
  border-top: 1px solid var(--line-strong);
}

.page-products .prod-diff-group > summary {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto 20px;
  align-items: center;
  gap: 10px;
  padding: 15px 4px;
  list-style: none;
  cursor: pointer;
  font-weight: 500;
  color: var(--rock);
  transition: background 180ms var(--ease);
}

.page-products .prod-diff-group > summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-diff-group > summary:hover,
.page-products .prod-diff-group > summary:focus-visible {
  background: var(--stone);
  outline: none;
}

.page-products .prod-diff-group > summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  text-align: right;
  color: var(--orange);
}

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

.page-products .prod-diff-group-num {
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-products .prod-diff-group-name {
  font-size: 15.5px;
  line-height: 1.4;
}

.page-products .prod-diff-group-count {
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--ink-mute);
  white-space: nowrap;
}

.page-products .prod-diff-rows {
  padding: 2px 0 16px;
}

.page-products .prod-diff-row {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 9px 12px;
  font-size: 13px;
  line-height: 1.55;
  border-radius: 2px;
}

.page-products .prod-diff-row:nth-child(odd) {
  background: rgba(231, 228, 222, .58);
}

.page-products .prod-diff-name {
  font-weight: 500;
  color: var(--rock);
}

.page-products .prod-diff-v {
  color: var(--ink-soft);
}

.page-products .prod-diff-v--alt {
  padding-left: 10px;
  border-left: 1px solid rgba(47, 107, 255, .42);
}

/* ── 轻量版说明 ─────────────────────────────── */
.page-products .prod-light {
  background: var(--rock-deep);
  color: var(--silver);
}

.page-products .prod-light .section-title {
  color: var(--silver);
}

.page-products .prod-light .section-index {
  color: var(--orange);
}

.page-products .prod-light .lede {
  color: rgba(237, 241, 244, .76);
}

.page-products .prod-light-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(237, 241, 244, .66);
}

.page-products .prod-light-facts {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-products .prod-fact {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: rgba(237, 241, 244, .06);
  border-left: 2px solid var(--orange);
}

.page-products .prod-fact-num {
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--orange);
}

.page-products .prod-fact-label {
  font-size: 12.5px;
  line-height: 1.5;
  color: rgba(237, 241, 244, .7);
}

/* ── 安装步骤 ───────────────────────────────── */
.page-products .prod-steps-list {
  list-style: none;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .prod-steps-list > li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 3px 3px 0 rgba(58, 63, 68, .07);
}

.page-products .prod-step-num {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--orange);
  padding-top: 2px;
}

.page-products .prod-step-body h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--rock);
}

.page-products .prod-step-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ── 系统要求与更新 ─────────────────────────── */
.page-products .prod-sys-table {
  margin-top: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line-strong);
  background: var(--paper);
  overflow-x: auto;
}

.page-products .prod-sys-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

.page-products .prod-sys-row--head {
  display: none;
}

.page-products .prod-sys-row > span:first-child {
  font-weight: 600;
  color: var(--rock);
}

.page-products .prod-sys-lower {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-products .prod-sys-figure {
  margin: 0;
}

.page-products .prod-sys-figure .figure-frame {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  box-shadow: var(--shadow-paper);
}

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

.page-products .prod-sys-panel {
  align-self: start;
  padding: 4px 16px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-paper);
}

.page-products .prod-sys-panel .panel-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
}

.page-products .prod-sys-panel .panel-row:last-child {
  border-bottom: 0;
}

.page-products .prod-sys-panel .panel-key {
  color: var(--ink-soft);
}

.page-products .prod-sys-panel .panel-value {
  color: var(--rock);
  white-space: nowrap;
}

/* ── 我该选哪个 ─────────────────────────────── */
.page-products .prod-scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .prod-scene {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--clay);
  box-shadow: 3px 3px 0 rgba(58, 63, 68, .06);
}

.page-products .prod-scene h3 {
  margin: 0;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--rock);
}

.page-products .prod-scene p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-products .prod-scene strong {
  color: var(--rock);
  font-weight: 600;
}

.page-products .prod-choose-conclusion {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 16px 18px;
  background: var(--orange-soft);
  border-left: 4px solid var(--orange);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--rock);
}

.page-products .prod-choose-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ── 断点 ───────────────────────────────────── */
@media (min-width: 640px) {
  .page-products .prod-diff-row {
    font-size: 13.5px;
  }

  .page-products .prod-sys-row {
    grid-template-columns: 150px minmax(0, 1fr) minmax(0, 1fr);
    gap: 14px;
    align-items: center;
  }

  .page-products .prod-sys-row--head {
    display: grid;
    background: rgba(231, 228, 222, .62);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--ink-mute);
  }

  .page-products .prod-sys-row--head > span:first-child {
    font-weight: 400;
    color: var(--ink-mute);
  }
}

@media (min-width: 780px) {
  .page-products .prod-channel-row {
    grid-template-columns: 126px 190px minmax(0, 1fr);
    gap: 24px;
    align-items: center;
  }

  .page-products .prod-scene-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr) minmax(0, .9fr);
  }

  .page-products .prod-steps-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .prod-hero-top {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .55fr);
    align-items: end;
  }

  .page-products .prod-hero-aside {
    border-top: 0;
    border-left: 1px solid var(--line-strong);
    padding-top: 0;
    padding-left: 18px;
  }

  .page-products .prod-compare {
    grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr);
    gap: 0;
    align-items: stretch;
  }

  .page-products .prod-compare .compare-axis {
    display: block;
    grid-column: 2;
    grid-row: 1;
    align-self: stretch;
  }

  .page-products .prod-compare .compare-axis::before {
    content: "";
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(180deg, rgba(47, 107, 255, 0) 0%, var(--blue) 10%, var(--blue) 90%, rgba(47, 107, 255, 0) 100%);
  }

  .page-products .prod-sys-lower {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-products .prod-steps-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .prod-steps-list > li {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
}

@media (max-width: 639px) {
  .page-products .prod-diff-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
    padding: 10px 12px;
  }

  .page-products .prod-diff-v--alt {
    border-left: 0;
    padding-left: 0;
  }

  .page-products .prod-diff-v::before {
    content: attr(data-layer);
    display: inline-block;
    margin-right: 6px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: .06em;
    color: var(--ink-mute);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-index .index-map-link,
  .page-products .prod-diff-group > summary {
    transition: none;
  }
}
<<<END>>>