.page-products {
  --pg-rail-w: 236px;
  position: relative;
  background: var(--ink-900);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-products .pg-hero {
  position: relative;
  overflow: hidden;
  margin-top: calc(var(--header-h) * -1);
  padding-top: calc(var(--header-h) + clamp(52px, 8vw, 100px));
  padding-bottom: clamp(52px, 8vw, 96px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(92% 72% at 94% 0%, rgba(54, 226, 214, 0.18), transparent 62%),
    radial-gradient(86% 76% at 2% 100%, rgba(255, 90, 31, 0.2), transparent 66%),
    var(--ink-900);
}

.page-products .pg-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -45%;
  width: 62%;
  height: 150%;
  transform: rotate(-9deg);
  background: linear-gradient(180deg, rgba(255, 90, 31, 0.15), rgba(255, 90, 31, 0));
  pointer-events: none;
}

.page-products .pg-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .pg-hero__title {
  margin: 18px 0 0;
  max-width: 15em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.95rem, 4.3vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.page-products .pg-hero__lede {
  margin: 22px 0 0;
  max-width: 42em;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-products .pg-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 3.4vw, 36px);
}

.page-products .pg-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(22px, 4vw, 56px);
  margin: clamp(32px, 4.6vw, 52px) 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-products .pg-hero__stat {
  margin: 0;
}

.page-products .pg-hero__stats dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--warm-gray);
}

.page-products .pg-hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.1rem, 1.9vw, 1.45rem);
  color: var(--paper);
}

/* ---------- 版面骨架 ---------- */
.page-products .pg-body {
  display: grid;
  gap: clamp(40px, 5.4vw, 68px);
  padding-block: clamp(44px, 6vw, 84px) clamp(60px, 8vw, 112px);
}

.page-products .pg-flow {
  display: grid;
  gap: clamp(48px, 6.4vw, 92px);
  min-width: 0;
}

.page-products .pg-flow > * {
  min-width: 0;
}

/* ---------- 左栏索引 ---------- */
.page-products .pg-rail {
  min-width: 0;
}

.page-products .pg-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lava);
}

.page-products .pg-rail__nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-products .pg-rail__link {
  flex: 0 0 auto;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--warm-gray);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid var(--line);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-products .pg-rail__link:hover,
.page-products .pg-rail__link:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: var(--cyan-soft);
}

.page-products .pg-rail__note {
  margin: 20px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--lava);
  font-size: 13px;
  line-height: 1.75;
  color: var(--warm-gray);
}

@media (min-width: 921px) {
  .page-products .pg-body {
    grid-template-columns: var(--pg-rail-w) minmax(0, 1fr);
    column-gap: clamp(32px, 4.5vw, 68px);
  }

  .page-products .pg-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-products .pg-rail__nav {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .pg-rail__link {
    border-color: transparent;
    border-left: 2px solid var(--line);
    padding: 8px 10px;
  }
}

/* ---------- 章节通用 ---------- */
.page-products .pg-sec {
  min-width: 0;
}

.page-products .pg-sec__head {
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-products .pg-sec__lede {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-products .pg-sec--teal,
.page-products .pg-sec--indigo,
.page-products .pg-sec--wine {
  padding: clamp(22px, 3.2vw, 44px);
  border: 1px solid var(--line);
}

.page-products .pg-sec--teal {
  background: linear-gradient(158deg, #0d3b3a 0%, #0a2b2a 100%);
}

.page-products .pg-sec--indigo {
  background: linear-gradient(158deg, #26224a 0%, #1b1938 100%);
}

.page-products .pg-sec--wine {
  background: linear-gradient(158deg, #5b1e2d 0%, #42161f 100%);
}

/* ---------- 展签卡片 ---------- */
.page-products .pg-plates {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .pg-plate {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 32px);
  background: var(--ink-800);
  transition: background 0.24s var(--ease);
}

.page-products .pg-plate:hover {
  background: #1a2127;
}

.page-products .pg-plate__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lava);
}

.page-products .pg-plate__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.02rem, 1.6vw, 1.24rem);
  letter-spacing: -0.02em;
}

.page-products .pg-plate__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

@media (min-width: 700px) {
  .page-products .pg-plates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 图文交替 ---------- */
.page-products .pg-feature {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  align-items: start;
}

.page-products .pg-feature__body {
  min-width: 0;
}

.page-products .pg-feature__body > p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-products .figure {
  min-width: 0;
  margin: 0;
}

.page-products .figure__media {
  overflow: hidden;
}

.page-products .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 861px) {
  .page-products .pg-feature {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-products .pg-feature--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }

  .page-products .pg-feature--flip .pg-feature__media {
    order: 2;
  }
}

/* ---------- 列表 ---------- */
.page-products .pg-list {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-products .pg-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-products .pg-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--lava);
}

/* ---------- 批次图例 ---------- */
.page-products .pg-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-products .pg-legend li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--warm-gray);
}

.page-products .pg-legend__swatch {
  width: 22px;
  height: 4px;
  display: inline-block;
}

.page-products .pg-legend__swatch--lava {
  background: var(--lava);
}

.page-products .pg-legend__swatch--cyan {
  background: var(--cyan);
}

.page-products .pg-legend__swatch--sulfur {
  background: var(--sulfur);
}

/* ---------- 回放时间轴 ---------- */
.page-products .pg-timeline {
  margin-top: clamp(20px, 3vw, 32px);
  padding: clamp(14px, 2vw, 24px);
  border: 1px solid rgba(243, 247, 247, 0.14);
  background: rgba(11, 13, 16, 0.55);
}

.page-products .pg-timeline__scroll {
  overflow-x: auto;
  overflow-y: hidden;
}

.page-products .pg-timeline svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

.page-products .pg-tl__track {
  stroke: var(--ink-700);
  stroke-width: 2;
}

.page-products .pg-tl__rail-label {
  fill: var(--warm-gray);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-products .pg-tl__dot {
  fill: var(--ink-900);
  stroke: var(--cyan);
  stroke-width: 2;
  transition: fill 0.2s var(--ease), stroke 0.2s var(--ease);
}

.page-products .pg-tl__node {
  cursor: default;
}

.page-products .pg-tl__node:hover .pg-tl__dot {
  fill: var(--cyan);
  stroke: var(--sulfur);
}

.page-products .pg-tl__tip {
  fill: var(--paper);
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-anchor: middle;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease);
}

.page-products .pg-tl__node:hover .pg-tl__tip {
  opacity: 1;
}

.page-products .pg-timeline__hint {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--warm-gray);
}

/* ---------- 三段式说明 ---------- */
.page-products .pg-triad {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 32px);
  background: rgba(243, 247, 247, 0.12);
  border: 1px solid rgba(243, 247, 247, 0.12);
}

.page-products .pg-triad__item {
  padding: clamp(16px, 2.2vw, 24px);
  background: rgba(11, 13, 16, 0.72);
}

.page-products .pg-triad__key {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .pg-triad__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .pg-triad--inline {
  margin: 0 0 18px;
  background: var(--line);
  border-color: var(--line);
}

.page-products .pg-triad--inline .pg-triad__item {
  background: var(--ink-800);
}

@media (min-width: 700px) {
  .page-products .pg-triad {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 入口三步 ---------- */
.page-products .pg-steps {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 clamp(20px, 3vw, 28px);
  padding: 0;
  list-style: none;
  counter-reset: pgstep;
}

.page-products .pg-steps li {
  counter-increment: pgstep;
  padding: 16px 18px;
  border: 1px solid rgba(243, 247, 247, 0.2);
  background: rgba(11, 13, 16, 0.42);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .pg-steps li::before {
  content: counter(pgstep, decimal-leading-zero);
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sulfur);
}

.page-products .pg-steps strong {
  font-weight: 700;
}

@media (min-width: 700px) {
  .page-products .pg-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 场景卡 ---------- */
.page-products .pg-scenes {
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .pg-scene {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line);
  background: var(--ink-800);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-products .pg-scene:hover {
  border-color: rgba(54, 226, 214, 0.5);
  transform: translateY(-3px);
}

.page-products .pg-scene h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.page-products .pg-scene p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .pg-scene p.pg-scene__path {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-products .pg-scene .btn {
  justify-self: start;
}

/* ---------- 收尾 ---------- */
.page-products .pg-cta {
  display: grid;
  gap: 14px;
  padding: clamp(24px, 3.4vw, 42px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--lava);
  background: linear-gradient(122deg, rgba(255, 90, 31, 0.16), rgba(54, 226, 214, 0.09) 68%, transparent 100%);
}

.page-products .pg-cta__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  letter-spacing: -0.03em;
}

.page-products .pg-cta__text {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-products .pg-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-products .pg-cta__mail {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  word-break: break-all;
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 480px) {
  .page-products .pg-hero__stats {
    gap: 18px 28px;
  }

  .page-products .pg-sec--teal,
  .page-products .pg-sec--indigo,
  .page-products .pg-sec--wine {
    padding: 18px;
  }

  .page-products .pg-cta__actions .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pg-plate,
  .page-products .pg-scene,
  .page-products .pg-tl__dot,
  .page-products .pg-tl__tip,
  .page-products .pg-rail__link {
    transition: none;
  }

  .page-products .pg-scene:hover {
    transform: none;
  }
}
<<<END>>>