.page-products {
  background: var(--surface-deep);
  color: var(--on-deep);
  overflow-x: hidden;
}

.page-products .container {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  box-sizing: border-box;
}

.page-products .h2 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 8px 0 14px;
}

/* ---------- 首屏 ---------- */
.page-products .ps-hero {
  position: relative;
  overflow: hidden;
  padding: 34px 0 54px;
  background: var(--surface-deep);
}

.page-products .ps-hero::after {
  content: "";
  position: absolute;
  left: 34%;
  right: -22%;
  top: 12%;
  bottom: -46%;
  background: linear-gradient(152deg, rgba(184, 52, 42, 0.72) 0%, rgba(184, 52, 42, 0.12) 52%, rgba(30, 42, 74, 0) 82%);
  transform: skewY(-9deg);
  z-index: 0;
  pointer-events: none;
}

.page-products .ps-hero-inner {
  position: relative;
  z-index: 1;
}

.page-products .ps-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--on-deep-dim);
  margin-bottom: 20px;
}

.page-products .ps-hero .breadcrumb a {
  color: var(--on-deep-dim);
  text-decoration: none;
  transition: color 0.2s var(--ease-out);
}

.page-products .ps-hero .breadcrumb a:hover,
.page-products .ps-hero .breadcrumb a:focus-visible {
  color: var(--ink-butter);
}

.page-products .ps-hero .eyebrow {
  color: var(--ink-butter);
  margin: 0;
}

.page-products .ps-hero h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 7.4vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--on-deep);
  margin: 10px 0 20px;
  max-width: 15em;
}

.page-products .ps-hero .lead {
  max-width: 38rem;
  font-size: 16px;
  line-height: 1.8;
  color: var(--on-deep-dim);
  margin: 0 0 28px;
}

.page-products .ps-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(228, 211, 163, 0.28);
  font-size: 13px;
  color: var(--on-deep-dim);
}

.page-products .ps-hero-stats b {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink-butter);
  margin-right: 6px;
  letter-spacing: 0.04em;
}

/* ---------- 版本带 ---------- */
.page-products .ps-band {
  position: relative;
  overflow: hidden;
  background: var(--ink-red);
  color: var(--ink-paper);
  padding: 44px 0 50px;
}

.page-products .ps-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(20, 17, 15, 0.14) 0 2px, transparent 2px 10px);
  pointer-events: none;
}

.page-products .ps-band > .container {
  position: relative;
  z-index: 1;
}

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

.page-products .ps-band-copy .eyebrow {
  color: var(--ink-butter);
  margin: 0;
}

.page-products .ps-band-copy .h2 {
  color: var(--ink-paper);
  font-size: clamp(26px, 5vw, 40px);
  margin: 10px 0 14px;
}

.page-products .ps-band-copy p {
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(245, 239, 227, 0.86);
  margin: 0;
  max-width: 34rem;
}

.page-products .ps-band-fig {
  margin: 0;
  border: 1px solid rgba(228, 211, 163, 0.45);
  padding: 8px;
  background: rgba(20, 17, 15, 0.3);
}

.page-products .ps-band-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .ps-track {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 34px 0 0;
  padding: 0;
}

.page-products .ps-track > li {
  display: flex;
}

.page-products .ps-node {
  width: 100%;
  border: 1px solid rgba(228, 211, 163, 0.42);
  background: rgba(20, 17, 15, 0.28);
  padding: 15px 15px 13px;
  transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}

.page-products .ps-node[open] {
  border-color: var(--ink-gold);
  background: rgba(20, 17, 15, 0.48);
}

.page-products .ps-node > summary {
  display: flex;
  flex-direction: column;
  gap: 7px;
  list-style: none;
  cursor: pointer;
}

.page-products .ps-node > summary::-webkit-details-marker {
  display: none;
}

.page-products .ps-node > summary:focus-visible {
  outline: 2px solid var(--ink-gold);
  outline-offset: 4px;
}

.page-products .ps-node-num {
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--ink-butter);
}

.page-products .ps-node-when {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(245, 239, 227, 0.74);
}

.page-products .ps-node-body {
  margin-top: 13px;
  padding-top: 12px;
  border-top: 1px solid rgba(228, 211, 163, 0.3);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 239, 227, 0.82);
}

.page-products .ps-node-body p {
  margin: 0 0 8px;
}

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

.page-products .ps-node-ref {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-butter) !important;
}

/* ---------- 版本说明 ---------- */
.page-products .ps-notes {
  background: var(--surface-paper);
  color: var(--ink-indigo);
  padding: 52px 0 56px;
}

.page-products .ps-notes .eyebrow,
.page-products .ps-rules .eyebrow,
.page-products .ps-devices .eyebrow {
  color: var(--ink-clay);
  margin: 0;
}

.page-products .ps-notes .h2,
.page-products .ps-rules .h2,
.page-products .ps-devices .h2 {
  color: var(--ink-indigo);
  font-size: clamp(25px, 4.6vw, 38px);
}

.page-products .ps-notes .lead,
.page-products .ps-rules .lead,
.page-products .ps-devices .lead {
  max-width: 40rem;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-indigo-soft);
  margin: 0;
}

.page-products .ps-note-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 30px;
}

.page-products .ps-note {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 20px 18px 22px;
}

.page-products .ps-note .h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink-indigo);
  margin: 0;
}

.page-products .ps-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-indigo-soft);
}

.page-products .ps-note p.ps-note-ref {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-clay);
  padding-top: 8px;
  border-top: 1px solid var(--ink-hair);
  width: 100%;
}

.page-products .ps-notes-fig {
  margin: 32px 0 0;
}

.page-products .ps-notes-fig img,
.page-products .ps-rules-fig img,
.page-products .ps-record-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 规则文档 ---------- */
.page-products .ps-rules {
  background: var(--surface-paper-2);
  color: var(--ink-indigo);
  padding: 52px 0 58px;
}

.page-products .ps-console {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 30px;
}

.page-products .ps-col {
  position: relative;
  z-index: 0;
  background: var(--surface-paper);
  border: 1px solid var(--ink-hair);
  border-top: 3px solid var(--ink-clay);
  padding: 18px 16px 20px;
}

.page-products .ps-col::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translate(7px, 7px);
  border: 1px solid var(--ink-layer);
  opacity: 0.26;
  z-index: -1;
  pointer-events: none;
}

.page-products .ps-col-step {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-stone);
  margin: 0 0 6px;
}

.page-products .ps-col .h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 500;
  color: var(--ink-indigo);
  margin: 0 0 8px;
}

.page-products .ps-col-note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-indigo-soft);
  margin: 0 0 14px;
}

.page-products .ps-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .ps-opt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 5px 9px;
  border: 1px solid var(--ink-hair);
  color: var(--ink-stone);
  background: rgba(255, 255, 255, 0.4);
}

.page-products .ps-opt--on {
  border-color: var(--ink-gold);
  color: var(--ink-clay);
  background: rgba(201, 162, 39, 0.13);
}

.page-products .ps-readout {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 24px;
  padding: 16px 18px;
  border: 1px solid var(--ink-gold);
  background: rgba(201, 162, 39, 0.07);
}

.page-products .ps-readout-code {
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.16em;
  color: var(--ink-clay);
}

.page-products .ps-readout-text {
  flex: 1 1 15rem;
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-indigo-soft);
}

.page-products .ps-rules-foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 36px;
}

.page-products .ps-rules-fig {
  margin: 0;
}

.page-products .ps-rules-foot-copy .h3 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 500;
  color: var(--ink-indigo);
  margin: 0 0 12px;
}

.page-products .ps-para {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-indigo-soft);
  margin: 0 0 14px;
}

.page-products .ps-rules-foot-copy ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .ps-rules-foot-copy li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 9px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-indigo-soft);
}

.page-products .ps-rules-foot-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--ink-gold);
}

.page-products .ps-rules a,
.page-products .ps-devices a {
  color: var(--ink-clay);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-hair);
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.page-products .ps-rules a:hover,
.page-products .ps-devices a:hover {
  color: var(--ink-red);
  border-bottom-color: var(--ink-gold);
}

/* ---------- 订阅与记录 ---------- */
.page-products .ps-duo-section {
  background: var(--surface-deep-2);
  color: var(--on-deep);
  padding: 52px 0 56px;
}

.page-products .ps-duo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-products .ps-sub-card {
  padding: 26px 22px 24px;
  background: rgba(20, 17, 15, 0.3);
}

.page-products .ps-sub-card .eyebrow {
  color: var(--ink-butter);
  margin: 0;
}

.page-products .ps-sub-card .h2 {
  color: var(--on-deep);
  font-size: clamp(23px, 4.2vw, 32px);
  margin: 10px 0 14px;
}

.page-products .ps-sub-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-deep-dim);
  margin: 0;
}

.page-products .ps-sub-btn {
  margin-top: 20px;
}

.page-products .ps-sub-note {
  margin-top: 16px !important;
  font-size: 13.5px;
}

.page-products .ps-sub-note a {
  color: var(--ink-butter);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 200, 121, 0.5);
}

.page-products .ps-sub-note a:hover {
  border-bottom-color: var(--ink-butter);
}

.page-products .ps-record {
  padding: 26px 22px 24px;
  border: 1px solid rgba(228, 211, 163, 0.28);
}

.page-products .ps-record .eyebrow {
  color: var(--ink-butter);
  margin: 0;
}

.page-products .ps-record .h2,
.page-products .ps-record .ps-record-title {
  color: var(--on-deep);
  font-size: clamp(23px, 4.2vw, 32px);
  margin: 10px 0 12px;
}

.page-products .ps-record-lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-deep-dim);
  margin: 0 0 20px;
}

.page-products .ps-path {
  border-left: 2px solid var(--ink-gold);
  padding: 2px 0 2px 14px;
  margin: 0 0 18px;
}

.page-products .ps-path h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-butter);
  margin: 0 0 5px;
}

.page-products .ps-path p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--on-deep-dim);
}

.page-products .ps-record-fig {
  margin: 22px 0 0;
  border: 1px solid rgba(228, 211, 163, 0.28);
  padding: 7px;
}

/* ---------- 设备 ---------- */
.page-products .ps-devices {
  background: var(--surface-paper);
  color: var(--ink-indigo);
  padding: 52px 0 58px;
}

.page-products .ps-scale {
  position: relative;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin: 32px 0 0;
  padding-top: 12px;
  border-top: 3px solid var(--ink-moss);
}

.page-products .ps-scale span {
  position: relative;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-stone);
  padding-top: 10px;
}

.page-products .ps-scale span::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  width: 1px;
  height: 8px;
  background: var(--ink-moss);
  opacity: 0.6;
}

.page-products .ps-scale span:first-child {
  color: var(--ink-moss);
}

.page-products .ps-scale-note {
  font-size: 13px;
  color: var(--ink-stone);
  margin: 10px 0 0;
}

.page-products .ps-dev-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 30px;
}

.page-products .ps-dev {
  background: var(--surface-paper-2);
  border: 1px solid var(--ink-hair);
  padding: 18px 16px 20px;
}

.page-products .ps-dev h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-indigo);
  margin: 0 0 9px;
}

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

/* ---------- 下一步 ---------- */
.page-products .ps-next {
  background: var(--surface-felt);
  color: var(--on-deep);
  padding: 40px 0 46px;
}

.page-products .ps-next-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 22px;
}

.page-products .ps-next-eyebrow {
  color: var(--ink-gold);
  margin: 0;
}

.page-products .ps-next .h2 {
  color: var(--ink-butter);
  font-size: clamp(22px, 4vw, 30px);
  margin: 8px 0 0;
}

.page-products .ps-next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .ps-track {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 820px) {
  .page-products .ps-console {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .ps-dev-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-products .ps-hero {
    padding: 48px 0 76px;
  }

  .page-products .ps-band {
    padding: 52px 0 58px;
  }

  .page-products .ps-band-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 48px;
  }

  .page-products .ps-notes,
  .page-products .ps-rules,
  .page-products .ps-devices {
    padding-top: 64px;
    padding-bottom: 68px;
  }

  .page-products .ps-note-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .ps-rules-foot {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
    gap: 42px;
  }

  .page-products .ps-rules-fig {
    order: 2;
  }

  .page-products .ps-duo {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: start;
  }

  .page-products .ps-next {
    padding: 48px 0 54px;
  }
}

@media (min-width: 1024px) {
  .page-products .ps-track {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .ps-dev-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ps-node,
  .page-products .ps-rules a,
  .page-products .ps-devices a,
  .page-products .ps-hero .breadcrumb a {
    transition: none;
  }
}