.page-products {
  --prod-cut: 14px;
}

.page-products .prod-hero {
  position: relative;
  padding: clamp(24px, 5vw, 52px) clamp(18px, 3.4vw, 44px) clamp(26px, 4vw, 46px);
  background:
    radial-gradient(120% 140% at 88% 0%, var(--signal-soft), transparent 62%),
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 24px),
    var(--surface);
  border: 1px solid var(--line);
  clip-path: polygon(var(--prod-cut) 0, 100% 0, 100% calc(100% - var(--prod-cut)), calc(100% - var(--prod-cut)) 100%, 0 100%, 0 var(--prod-cut));
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.page-products .prod-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 6.2vw, 56px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--heading);
  margin: 10px 0 14px;
  text-wrap: balance;
}

.page-products .prod-lead {
  max-width: 62ch;
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 22px;
}

.page-products .prod-kpi {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-products .prod-kpi li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  background: var(--surface-alt);
  border-left: 3px solid var(--accent);
}

.page-products .prod-kpi-num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 30px;
  line-height: 1;
  color: var(--accent);
}

.page-products .prod-kpi-txt {
  font-size: 14px;
  color: var(--text-dim);
}

.page-products .prod-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 4.4vw, 34px);
  line-height: 1.2;
  color: var(--heading);
  margin: 0 0 12px;
  text-wrap: balance;
}

.page-products .prod-h3 {
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  color: var(--heading);
  margin: 22px 0 8px;
}

.page-products .prod-sub {
  max-width: 68ch;
  color: var(--text-dim);
  font-size: 15.5px;
  line-height: 1.8;
  margin: 0 0 20px;
}

.page-products .prod-trio {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-products .prod-trio-card {
  position: relative;
  padding: 20px 18px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  clip-path: polygon(var(--prod-cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--prod-cut));
}

.page-products .prod-trio-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--heading);
  margin: 12px 0 8px;
}

.page-products .prod-trio-card p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0 0 10px;
}

.page-products .prod-trio-how {
  color: var(--text);
  border-top: 1px dashed var(--line);
  padding-top: 10px;
  font-size: 13.5px;
}

.page-products .prod-banner {
  margin: 0 0 26px;
}

.page-products .prod-banner img,
.page-products .prod-figure img,
.page-products .prod-wide img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--surface-alt);
}

.page-products .prod-banner img {
  aspect-ratio: 1400 / 520;
}

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

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

.page-products .prod-wide img {
  aspect-ratio: 3 / 2;
}

.page-products .prod-wide {
  margin: 0 0 24px;
}

.page-products .prod-split {
  display: grid;
  gap: 26px;
  grid-template-columns: 1fr;
}

.page-products .prod-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .prod-step-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-step-no {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
  border: 1px solid var(--line);
  height: 34px;
  display: grid;
  place-items: center;
}

.page-products .prod-step-list strong {
  display: block;
  color: var(--heading);
  font-size: 15.5px;
  margin-bottom: 4px;
}

.page-products .prod-step-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .prod-steps > p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-products .prod-views {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 16px 14px 18px;
  clip-path: polygon(var(--prod-cut) 0, 100% 0, 100% calc(100% - var(--prod-cut)), calc(100% - var(--prod-cut)) 100%, 0 100%, 0 var(--prod-cut));
}

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

.page-products .prod-view-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-products .prod-tab {
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  color: var(--text-dim);
  border: 1px solid var(--line);
  background: var(--surface-alt);
  clip-path: polygon(8px 0, 100% 0, 100% 100%, 0 100%, 0 8px);
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.page-products .prod-tab:hover {
  color: var(--heading);
  border-color: var(--accent-deep);
}

.page-products #pview-sch:checked ~ .prod-view-tabs .prod-tab[for="pview-sch"],
.page-products #pview-form:checked ~ .prod-view-tabs .prod-tab[for="pview-form"],
.page-products #pview-h2h:checked ~ .prod-view-tabs .prod-tab[for="pview-h2h"] {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
}

.page-products #pview-sch:checked ~ .prod-view-tabs .prod-tab[for="pview-sch"]::before,
.page-products #pview-form:checked ~ .prod-view-tabs .prod-tab[for="pview-form"]::before,
.page-products #pview-h2h:checked ~ .prod-view-tabs .prod-tab[for="pview-h2h"]::before {
  content: "● ";
  font-size: 9px;
  vertical-align: 2px;
}

.page-products .prod-table {
  background: var(--cream);
  color: var(--brown);
  border: 1px solid var(--line);
}

.page-products .prod-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "en val"
    "cn val";
  align-items: center;
  gap: 2px 10px;
  padding: 9px 12px;
  border-bottom: 1px solid rgba(28, 23, 16, 0.14);
  border-left: 3px solid transparent;
  transition: opacity 180ms ease, border-color 180ms ease;
}

.page-products .prod-row:last-child {
  border-bottom: none;
}

.page-products .prod-row-head {
  grid-template-areas: "en val";
  grid-template-columns: minmax(0, 1fr) auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(28, 23, 16, 0.6);
  background: rgba(28, 23, 16, 0.06);
  border-left-color: transparent;
}

.page-products .prod-row-head span:nth-child(2) {
  display: none;
}

.page-products .prod-tag-en {
  grid-area: en;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: rgba(28, 23, 16, 0.62);
}

.page-products .prod-tag-cn {
  grid-area: cn;
  font-size: 14px;
  font-weight: 500;
  color: var(--brown);
}

.page-products .prod-val {
  grid-area: val;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  text-align: right;
  color: var(--brown);
  white-space: nowrap;
}

.page-products #pview-sch:checked ~ .prod-table .prod-row:not(.is-sch):not(.prod-row-head),
.page-products #pview-form:checked ~ .prod-table .prod-row:not(.is-form):not(.prod-row-head),
.page-products #pview-h2h:checked ~ .prod-table .prod-row:not(.is-h2h):not(.prod-row-head) {
  opacity: 0.34;
}

.page-products #pview-sch:checked ~ .prod-table .prod-row.is-sch,
.page-products #pview-form:checked ~ .prod-table .prod-row.is-form,
.page-products #pview-h2h:checked ~ .prod-table .prod-row.is-h2h {
  border-left-color: var(--teal-deep);
  background: rgba(15, 127, 107, 0.08);
}

.page-products .prod-view-foot {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .prod-two {
  display: grid;
  gap: 26px;
  grid-template-columns: 1fr;
}

.page-products .prod-big-steps {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .prod-big-steps li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
}

.page-products .prod-big-no {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  color: var(--accent);
}

.page-products .prod-big-steps h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  color: var(--heading);
}

.page-products .prod-big-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .prod-compare {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-products .prod-compare-col {
  padding: 14px 16px;
  border: 1px solid var(--line);
}

.page-products .prod-compare-col p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-products .prod-compare-old {
  background: var(--surface-alt);
  opacity: 0.85;
}

.page-products .prod-compare-new {
  background: var(--signal-soft);
  border-color: var(--accent-deep);
}

.page-products .prod-two-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-products .prod-track {
  width: 100%;
  max-width: 340px;
  height: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 10px;
}

.page-products .prod-track-line {
  stroke: var(--accent-deep);
  stroke-width: 3;
  stroke-linecap: square;
}

.page-products .prod-track-node {
  fill: var(--surface);
  stroke: var(--accent-deep);
  stroke-width: 3;
}

.page-products .prod-track-node--hot {
  fill: var(--accent);
  stroke: var(--accent);
}

.page-products .prod-track-cap {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.page-products .prod-layers {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-products .prod-layer {
  padding: 16px;
  background: var(--surface);
  border-top: 2px solid var(--label);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-products .prod-layer-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--label);
}

.page-products .prod-layer h3 {
  margin: 8px 0 6px;
  font-size: 16.5px;
  color: var(--heading);
}

.page-products .prod-layer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .prod-sync {
  display: grid;
  gap: 26px;
  grid-template-columns: 1fr;
}

.page-products .prod-sync-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .prod-sync-list li {
  display: grid;
  gap: 4px;
  padding: 13px 14px;
  background: var(--surface);
  border-left: 3px solid var(--accent-deep);
}

.page-products .prod-sync-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-products .prod-sync-val {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-products .prod-limit {
  padding: 16px;
  background: var(--cream);
  color: var(--brown);
  border: 1px solid var(--line);
}

.page-products .prod-limit-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.page-products .prod-limit-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
}

.page-products .prod-limit-bar {
  height: 12px;
  background: rgba(28, 23, 16, 0.14);
  overflow: hidden;
}

.page-products .prod-limit-fill {
  display: block;
  width: 75%;
  height: 100%;
  background: repeating-linear-gradient(135deg, var(--teal-deep) 0 6px, var(--accent) 6px 12px);
}

.page-products .prod-limit-note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(28, 23, 16, 0.75);
}

.page-products .prod-sync-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-products .prod-sync-tip {
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
}

.page-products .prod-sync-tip p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .prod-mode {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}

.page-products .prod-mode-text article {
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  margin-bottom: 12px;
}

.page-products .prod-mode-text h3 {
  margin: 10px 0 6px;
  font-size: 16.5px;
  color: var(--heading);
}

.page-products .prod-mode-text p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-products .prod-mode-note {
  border-left: 3px solid var(--label);
  padding-left: 12px;
  font-size: 13.5px !important;
}

.page-products .prod-mode-fig img {
  aspect-ratio: 12 / 7;
}

.page-products .prod-ver-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  margin-bottom: 22px;
}

.page-products .prod-ver-table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
  background: var(--surface);
  font-size: 14px;
}

.page-products .prod-ver-cap {
  caption-side: top;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  padding: 10px 12px;
}

.page-products .prod-ver-table th,
.page-products .prod-ver-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  line-height: 1.6;
}

.page-products .prod-ver-table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--label);
  background: var(--surface-alt);
}

.page-products .prod-ver-table tbody th {
  font-weight: 500;
  color: var(--heading);
  background: var(--surface-alt);
}

.page-products .prod-ver-table tbody td {
  color: var(--text-dim);
}

.page-products .prod-ver-table .is-yes {
  color: var(--accent);
}

.page-products .prod-ver-table .is-yes::before {
  content: "✓ ";
  font-weight: 700;
}

.page-products .prod-ver-table .is-no {
  color: var(--mist);
  opacity: 0.7;
}

.page-products .prod-folds {
  display: grid;
  gap: 10px;
}

.page-products .prod-fold {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
}

.page-products .prod-fold summary {
  cursor: pointer;
  padding: 13px 14px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--heading);
  list-style: none;
}

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

.page-products .prod-fold summary::before {
  content: "＋ ";
  font-family: var(--font-mono);
  color: var(--coral);
}

.page-products .prod-fold[open] summary::before {
  content: "－ ";
}

.page-products .prod-fold p {
  margin: 0;
  padding: 0 14px 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-products .prod-cta {
  margin: 0 0 40px;
  padding: clamp(20px, 4vw, 36px);
  background:
    linear-gradient(120deg, var(--signal-soft), transparent 62%),
    var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  display: grid;
  gap: 18px;
}

.page-products .prod-cta p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-products .prod-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 720px) {
  .page-products .prod-kpi {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .prod-kpi li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

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

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

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

  .page-products .prod-row {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) auto;
    grid-template-areas: "en cn val";
    gap: 12px;
  }

  .page-products .prod-row-head span:nth-child(2) {
    display: block;
  }

  .page-products .prod-cta {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 940px) {
  .page-products .prod-split {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

  .page-products .prod-sticky {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-products .prod-two {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .prod-sync {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-products .prod-mode {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-products .prod-two-side {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

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