.page-products {
  --ps-gap: clamp(1rem, 2.5vw, 1.6rem);
  --ps-block: clamp(2rem, 5vw, 3.5rem);
}

/* ---------- 首屏 ---------- */
.page-products .ps-hero {
  padding-top: clamp(1.25rem, 4vw, 2.25rem);
  padding-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-products .ps-hero h1 {
  max-width: 17em;
  margin: .7rem 0 1.1rem;
}

.page-products .ps-hero .lede {
  max-width: 62ch;
}

.page-products .hero-rule {
  height: 4px;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  background: linear-gradient(
    90deg,
    var(--signal) 0 24%,
    var(--amber) 24% 42%,
    var(--teal) 42% 60%,
    var(--line) 60% 100%
  );
}

/* ---------- 记录归档工作台 ---------- */
.page-products .record-zone {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  padding-top: var(--ps-block);
  padding-bottom: var(--ps-block);
}

.page-products .filter-dock {
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-top: 3px solid var(--signal);
  padding: 1.15rem 1.15rem 1.35rem;
}

.page-products .filter-dock .eyebrow {
  margin: 0 0 .85rem;
}

.page-products .filter-dock .legend-title {
  margin: 1.35rem 0 .7rem;
}

.page-products .filter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-products .filter-list li {
  display: grid;
  gap: .25rem;
  padding-bottom: .75rem;
  border-bottom: 1px dashed var(--line);
}

.page-products .filter-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .filter-key {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--signal-soft);
}

.page-products .filter-val {
  font-size: .86rem;
  line-height: 1.65;
  color: var(--paper);
}

.page-products .legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-products .legend li {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .82rem;
  color: var(--mist);
}

.page-products .dot {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  flex: none;
  background: var(--mist);
}

.page-products .dot--amber { background: var(--amber); }
.page-products .dot--signal { background: var(--signal); }
.page-products .dot--mist { background: var(--mist); }
.page-products .dot--teal { background: var(--teal); }

.page-products .filter-dock .btn {
  display: block;
  margin-top: 1.25rem;
  text-align: center;
}

.page-products .record-flow {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}

.page-products .flow-card {
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: clamp(1.15rem, 3vw, 1.9rem);
  box-shadow: 0 1px 0 rgba(8, 16, 28, .35);
}

.page-products .flow-card h2 {
  margin: 0 0 .9rem;
}

.page-products .flow-card .prose + .prose {
  margin-top: .75rem;
}

/* ---------- 图片 ---------- */
.page-products .ps-figure {
  margin: 1.25rem 0 0;
}

.page-products .ps-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-products .ps-figure figcaption {
  margin-top: .6rem;
  font-size: .78rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 轮次时间轴 ---------- */
.page-products .timeline-wrap {
  margin-top: 1.75rem;
  padding: clamp(.75rem, 2.5vw, 1.5rem);
  background: var(--ink-800);
  border: 1px solid var(--line);
  overflow-x: auto;
}

.page-products .timeline-svg {
  display: block;
  width: 100%;
  min-width: 480px;
  height: auto;
}

.page-products .tl-axis {
  stroke: var(--line);
  stroke-width: 1.5;
}

.page-products .tl-halo {
  fill: none;
  stroke: var(--mist);
  stroke-opacity: .3;
  stroke-width: 1.5;
}

.page-products .tl-halo--signal { stroke: var(--signal); stroke-opacity: .45; }
.page-products .tl-halo--amber { stroke: var(--amber); stroke-opacity: .45; }
.page-products .tl-halo--teal { stroke: var(--teal); stroke-opacity: .45; }

.page-products .tl-dot--mist { fill: var(--mist); }
.page-products .tl-dot--signal { fill: var(--signal); }
.page-products .tl-dot--amber { fill: var(--amber); }
.page-products .tl-dot--teal { fill: var(--teal); }

.page-products .timeline-svg text {
  font-family: var(--font-mono);
  text-anchor: middle;
}

.page-products .tl-idx {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .06em;
  fill: var(--paper);
}

.page-products .tl-state {
  font-size: 12px;
  letter-spacing: .12em;
  fill: var(--mist);
}

.page-products .tl-details {
  margin-top: 1.5rem;
  display: grid;
  gap: .6rem;
}

.page-products .tl-detail {
  background: var(--ink-900);
  border: 1px solid var(--line);
  padding: .85rem 1rem;
}

.page-products .tl-detail summary {
  display: flex;
  align-items: center;
  gap: .6rem;
  cursor: pointer;
  list-style: none;
  font-size: .92rem;
  font-weight: 600;
  color: var(--paper);
}

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

.page-products .tl-detail summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--teal-glow);
}

.page-products .tl-detail[open] summary::before {
  content: "−";
}

.page-products .tl-detail summary:hover,
.page-products .tl-detail summary:focus-visible {
  color: var(--teal-glow);
}

.page-products .tl-detail p {
  margin: .7rem 0 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 订阅 ---------- */
.page-products .sub-zone {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: var(--ps-block);
  padding-bottom: var(--ps-block);
}

.page-products .sub-intro h2 {
  margin: .55rem 0 1rem;
}

.page-products .sub-intro .prose + .prose {
  margin-top: .8rem;
}

.page-products .sub-grid {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-products .sub-card {
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--mist);
  padding: 1.1rem 1.15rem 1.3rem;
  box-shadow: 0 1px 0 rgba(8, 16, 28, .35);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .sub-card:hover {
  transform: translateY(-2px);
}

.page-products .sub-card--amber { border-left-color: var(--amber); }
.page-products .sub-card--signal { border-left-color: var(--signal); }
.page-products .sub-card--mist { border-left-color: var(--mist); }
.page-products .sub-card--teal { border-left-color: var(--teal); }

.page-products .sub-card h3 {
  margin: .75rem 0 .5rem;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--paper);
}

.page-products .sub-card p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .st {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  padding: .22rem .5rem;
  border: 1px solid currentColor;
  color: var(--mist);
}

.page-products .st--amber { color: var(--amber); }
.page-products .st--signal { color: var(--signal-soft); }
.page-products .st--mist { color: var(--mist); }
.page-products .st--teal { color: var(--teal-glow); }

/* ---------- 版本变化 ---------- */
.page-products .notes-zone {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: var(--ps-block);
  padding-bottom: var(--ps-block);
}

.page-products .notes-head h2 {
  margin: .55rem 0 1rem;
}

.page-products .notes-head .prose + .prose {
  margin-top: .8rem;
}

.page-products .notes-actions,
.page-products .start-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.4rem;
}

.page-products .notes-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .notes-rail li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: .75rem;
  align-items: baseline;
  padding: .95rem 0;
  border-bottom: 1px solid var(--line);
}

.page-products .notes-num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--signal-soft);
  letter-spacing: .04em;
}

.page-products .notes-label {
  font-size: .86rem;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 适用场景 ---------- */
.page-products .scene-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-products .scene-card {
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-top: 3px solid var(--teal);
  padding: 1.15rem 1.2rem 1.4rem;
}

.page-products .scene-card:nth-child(2) { border-top-color: var(--signal); }
.page-products .scene-card:nth-child(3) { border-top-color: var(--amber); }
.page-products .scene-card:nth-child(4) { border-top-color: var(--teal-glow); }

.page-products .scene-no {
  margin: 0;
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-products .scene-card h3 {
  margin: .5rem 0 .6rem;
  font-size: 1.04rem;
  font-weight: 600;
  color: var(--paper);
}

.page-products .scene-card p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .scene-more {
  margin: 1.5rem 0 0;
  font-size: .88rem;
  color: var(--mist);
}

.page-products .scene-more a {
  color: var(--teal-glow);
  text-decoration: underline;
  text-underline-offset: .22em;
  text-decoration-color: var(--line);
  transition: text-decoration-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .scene-more a:hover,
.page-products .scene-more a:focus-visible {
  color: var(--paper);
  text-decoration-color: var(--signal);
}

/* ---------- 使用流程 ---------- */
.page-products .start-zone {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: var(--ps-block);
  padding-bottom: var(--ps-block);
}

.page-products .start-main h2 {
  margin: .55rem 0 0;
}

.page-products .steps {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.page-products .steps li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: .8rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.page-products .steps li:first-child {
  border-top: 1px solid var(--line);
}

.page-products .step-no {
  font-family: var(--font-mono);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--signal);
}

.page-products .step-body h3 {
  margin: 0 0 .35rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--paper);
}

.page-products .step-body p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-products button.btn {
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  appearance: none;
}

.page-products .start-figure {
  margin-top: 0;
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-products .notes-rail li {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: 1.1rem;
  }

  .page-products .notes-num {
    font-size: 1.4rem;
  }

  .page-products .steps li {
    grid-template-columns: 3rem minmax(0, 1fr);
    gap: 1.1rem;
  }

  .page-products .ps-figure figcaption {
    font-size: .8rem;
  }
}

@media (min-width: 720px) {
  .page-products .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .flow-card--offset {
    margin-left: clamp(.75rem, 5%, 4rem);
  }
}

@media (min-width: 940px) {
  .page-products .record-zone {
    grid-template-columns: minmax(0, 296px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.75rem, 3.5vw, 3rem);
  }

  .page-products .filter-dock {
    position: sticky;
    top: 1.5rem;
  }

  .page-products .sub-zone {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.75rem, 4vw, 3rem);
  }

  .page-products .sub-grid {
    align-content: start;
  }

  .page-products .sub-grid > *:nth-child(even) {
    margin-top: 1.5rem;
  }

  .page-products .notes-zone {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.75rem, 4vw, 3rem);
  }

  .page-products .start-zone {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.75rem, 4vw, 3rem);
  }

  .page-products .start-figure {
    margin-top: .5rem;
  }
}

@media (min-width: 1080px) {
  .page-products .scene-grid {
    gap: 1.35rem;
  }

  .page-products .scene-grid > *:nth-child(even) {
    margin-top: 2rem;
  }

  .page-products .sub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }
}
<<<END>>>