.page-products {
  --p-cut: 18px;
  --p-gap: clamp(30px, 4.5vw, 64px);
}

.page-products .products-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.page-products .block-head {
  margin-bottom: 26px;
}

.page-products .block-head h2 {
  margin: 10px 0 14px;
}

.page-products .block-head .lead {
  max-width: 62ch;
}

/* ============ 首屏 ============ */

.page-products .products-hero {
  padding-top: clamp(28px, 5vw, 56px);
  border-top: 1px solid var(--line-soft);
}

.page-products .products-hero h1 {
  margin: 14px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--paper);
  max-width: 20ch;
}

.page-products .products-hero .lead {
  max-width: 58ch;
  color: var(--paper);
  opacity: 0.86;
}

.page-products .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

/* ============ 右侧刻度栏 ============ */

.page-products .products-rail {
  min-width: 0;
}

.page-products .rail-stick {
  position: relative;
  padding: 22px 0 22px 26px;
  border-left: 1px solid var(--line-mid);
}

.page-products .rail-track {
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--rail-cyan), transparent 88%);
  opacity: 0.7;
}

.page-products .rail-facts {
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .rail-fact {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-products .rail-fact dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--nebula);
}

.page-products .rail-fact dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--paper);
}

.page-products .rail-fact .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
}

.page-products .rail-nav {
  display: grid;
  gap: 0;
  margin-top: 26px;
}
.page-products .rail-nav a {
  display: block;
  padding: 9px 0 9px 16px;
  margin-left: -27px;
  border-left: 2px solid transparent;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--nebula);
  text-decoration: none;
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease);
}
.page-products .rail-nav a:hover,
.page-products .rail-nav a:focus-visible {
  color: var(--cyan-bright);
  border-left-color: var(--line-strong);
  outline: none;
}
.page-products .rail-nav a[aria-current="true"] {
  color: var(--cyan-bright);
  border-left-color: var(--rail-cyan);
}

@media (min-width: 1024px) {
  .page-products .products-layout {
    grid-template-columns: minmax(0, 1.75fr) minmax(238px, 0.85fr);
    column-gap: clamp(36px, 5vw, 84px);
  }
  .page-products .rail-stick {
    position: sticky;
    top: 118px;
  }
}

/* ============ 区域清单 ============ */

.page-products .range-figure {
  margin: 0 0 28px;
}

.page-products .range-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .range-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
  transition: background-color 0.4s var(--ease);
}

.page-products .range-item:hover {
  background-color: rgba(53, 214, 224, 0.04);
}

.page-products .range-key {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-products .range-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .range-body p {
  margin: 0 0 4px;
  font-size: 0.9375rem;
  color: var(--paper);
  opacity: 0.82;
}

.page-products .range-body p:last-child {
  margin-bottom: 0;
}

.page-products .range-scope {
  font-family: var(--font-mono);
  font-size: 0.875rem !important;
  letter-spacing: 0.04em;
  color: var(--gold-soft) !important;
  opacity: 1 !important;
}

.page-products .range-scope .num,
.page-products .range-name .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
}

.page-products .range-tier {
  color: var(--nebula) !important;
  font-size: 0.875rem !important;
}

.page-products .range-meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rail-cyan);
}

@media (min-width: 760px) {
  .page-products .range-item {
    grid-template-columns: minmax(150px, 0.85fr) minmax(0, 1.9fr) minmax(120px, 0.55fr);
    align-items: baseline;
    gap: 24px;
  }
  .page-products .range-meta {
    text-align: right;
  }
}

/* ============ 类目矩阵 ============ */

.page-products .cat-figure {
  margin: 0 0 32px;
}

.page-products .cat-matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .cat-cell {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--indigo);
  min-height: 168px;
}

.page-products .cat-cell h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .cat-cell p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.76;
}

.page-products .cat-cell .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
}

.page-products .cat-cell--changed {
  background: linear-gradient(140deg, rgba(232, 180, 74, 0.13), var(--indigo) 62%);
}

.page-products .cat-cell--changed::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--star-gold), transparent);
}

.page-products .cell-flag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-soft);
  opacity: 1;
}

@media (min-width: 640px) {
  .page-products .cat-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-products .cat-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ============ 使用场景 ============ */

.page-products .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-products .scene-figure {
  margin: 0;
}

.page-products .scene-body h2 {
  margin: 10px 0 16px;
}

.page-products .scene-body .lead {
  max-width: 54ch;
}

.page-products .scene-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .scene-list li {
  padding: 20px 0 20px 22px;
  border-top: 1px solid var(--line-soft);
  position: relative;
}

.page-products .scene-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--star-gold);
  opacity: 0.85;
}

.page-products .scene-list h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .scene-list p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--nebula);
}

@media (min-width: 860px) {
  .page-products .scene-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.4fr);
    gap: clamp(32px, 4vw, 60px);
    align-items: start;
  }
}

/* ============ 文件清单 ============ */

.page-products .files-figure {
  margin: 0 0 28px;
}

.page-products .file-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-products .file-filter .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line-mid);
  background: transparent;
  color: var(--nebula);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease), background-color 0.35s var(--ease);
}

.page-products .file-filter .filter-btn:hover,
.page-products .file-filter .filter-btn:focus-visible {
  color: var(--cyan-bright);
  border-color: var(--line-strong);
  outline: none;
}

.page-products .file-filter .filter-btn[aria-pressed="true"] {
  color: var(--ink-deep);
  background: var(--star-gold);
  border-color: var(--star-gold);
}

.page-products .file-filter .filter-count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.75rem;
  opacity: 0.75;
}

.page-products .file-accordion {
  border-top: 1px solid var(--line-soft);
}

.page-products .file-item {
  border-bottom: 1px solid var(--line-soft);
}

.page-products .file-trigger {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 20px 0;
  background: none;
  border: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: color 0.35s var(--ease);
}

.page-products .file-trigger:hover .file-name,
.page-products .file-trigger:focus-visible .file-name {
  color: var(--cyan-bright);
}

.page-products .file-trigger:focus-visible {
  outline: 1px solid var(--line-strong);
  outline-offset: 2px;
}

.page-products .file-name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  color: var(--paper);
  letter-spacing: 0.01em;
  transition: color 0.35s var(--ease);
}

.page-products .file-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--nebula);
}

.page-products .file-ver {
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
}

.page-products .file-q,
.page-products .file-fmt,
.page-products .file-size {
  font-variant-numeric: tabular-nums;
}

.page-products .file-size {
  min-width: 5.2em;
  text-align: right;
}

.page-products .file-item .acc-panel-inner {
  padding: 0 0 24px;
}

.page-products .file-item .acc-panel-inner p {
  margin: 0 0 14px;
  max-width: 64ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.8;
}

@media (min-width: 820px) {
  .page-products .file-trigger {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.35fr);
    align-items: center;
    gap: 28px;
  }
  .page-products .file-meta {
    justify-content: flex-end;
  }
}

/* ============ 版本节奏 ============ */

.page-products .cadence-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .cadence-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cadence-index {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  letter-spacing: 0.06em;
  color: var(--rail-cyan);
  padding-top: 2px;
}

.page-products .cadence-list h3 {
  margin: 0 0 8px;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--paper);
}

.page-products .cadence-list p {
  margin: 0;
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--nebula);
}

.page-products .cadence-list .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
}

.page-products .cadence-figure {
  margin: 34px 0 0;
}

/* ============ 下一步 ============ */

.page-products .next-block {
  padding-top: 8px;
}

.page-products .next-block h2 {
  margin: 0 0 26px;
}

.page-products .next-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .next-card {
  display: block;
  padding: 28px 26px 30px;
  background: var(--paper);
  color: var(--ink-text);
  text-decoration: none;
  transition: background-color 0.4s var(--ease), transform 0.4s var(--ease);
}

.page-products .next-card:hover,
.page-products .next-card:focus-visible {
  background: #ffffff;
  outline: none;
  transform: translateY(-3px);
}

.page-products .next-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-deep);
  border-bottom: 2px solid var(--rail-cyan);
  padding-bottom: 3px;
}

.page-products .next-tag--gold {
  border-bottom-color: var(--star-gold);
}

.page-products .next-card h3 {
  margin: 16px 0 10px;
  font-family: var(--font-display);
  font-size: 1.375rem;
  color: var(--ink-text);
  letter-spacing: 0.01em;
}

.page-products .next-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #3d4454;
}

.page-products .next-go {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ink-deep);
  border-bottom: 1px solid var(--star-gold);
  padding-bottom: 2px;
}

.page-products .next-foot {
  margin: 26px 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--nebula);
}

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

/* ============ 窄屏收束 ============ */

@media (max-width: 560px) {
  .page-products .products-hero h1 {
    font-size: 1.85rem;
  }
  .page-products .rail-stick {
    padding-left: 18px;
  }
  .page-products .rail-nav a {
    margin-left: -19px;
  }
  .page-products .cadence-list li {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
  }
  .page-products .file-filter .filter-btn {
    padding: 8px 13px;
    font-size: 0.8125rem;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  .page-products .next-card,
  .page-products .file-trigger,
  .page-products .rail-nav a,
  .page-products .range-item {
    transition-duration: 0.15s !important;
    transform: none !important;
  }
}
<<<END>>>