.page-products {
  --prod-gap: clamp(20px, 4vw, 48px);
  --prod-strip-gap: 3px;
  --prod-plate: #3C4A69;
  --prod-paper-ink: #1D2A47;
  --prod-paper-muted: #55617C;
  overflow-x: hidden;
}

/* ---------- 通用文字节奏 ---------- */
.page-products p {
  font-family: var(--font-serif);
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-muted);
  margin: 14px 0 0;
  max-width: 66ch;
}

.page-products .display {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(29px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-products .h2 {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 33px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 10px 0 0;
  max-width: 24ch;
}

.page-products .h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.35;
  color: var(--text-primary);
  margin: 0;
}

.page-products .lede {
  font-family: var(--font-serif);
  font-size: 17.5px;
  line-height: 1.75;
  color: var(--text-primary);
  max-width: 62ch;
}

.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding-block: 4px;
}

.page-products .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-inline-end: 10px;
  color: var(--grid);
}

.page-products .breadcrumb__item a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .breadcrumb__item a:hover {
  color: var(--warm-gold);
  border-bottom-color: var(--warm-gold);
}

.page-products .ios-note a,
.page-products .prod-stamp a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--chart-cyan);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding-block: clamp(24px, 5vw, 56px) clamp(44px, 8vw, 96px);
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -18%;
  width: min(620px, 78%);
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, transparent 0 47%, rgba(232, 67, 60, 0.17) 47% 100%);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(240px, 40%);
  height: 3px;
  background: var(--warm-gold);
  pointer-events: none;
}

.page-products .prod-hero .shell {
  position: relative;
  z-index: 1;
}

.page-products .prod-hero__body {
  margin-top: clamp(28px, 6vw, 64px);
}

.page-products .prod-hero__aside {
  display: grid;
  gap: 18px;
  margin-top: clamp(32px, 6vw, 56px);
  padding-top: 22px;
  border-top: var(--hair);
}

.page-products .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .hero-stat__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--draw-red);
}

.page-products .hero-stat + .hero-stat .hero-stat__value {
  color: var(--text-primary);
}

.page-products .hero-stat:first-child .hero-stat__value {
  color: var(--draw-red);
}

.page-products .hero-stat__label {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 22ch;
}

/* ---------- 版本总览 ---------- */
.page-products .prod-versions {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .ver-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-products .ver-panels {
  display: grid;
  gap: 1px;
  margin-top: 14px;
  background: var(--grid);
  border: var(--hair);
}

.page-products .ver-card {
  background: var(--ink-800);
  padding: clamp(20px, 3.4vw, 34px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.page-products .ver-card--live {
  box-shadow: inset 0 3px 0 var(--draw-red);
}

.page-products .ver-card--legacy {
  box-shadow: inset 0 3px 0 var(--grid);
}

.page-products .ver-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.page-products .ver-card__metrics {
  display: grid;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: var(--hair);
}

.page-products .metric {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 8px;
}

.page-products .metric__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.page-products .ver-card--legacy .metric__value {
  color: var(--text-muted);
}

.page-products .metric__unit {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-muted);
}

.page-products .metric__label {
  flex: 0 0 100%;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-muted);
  margin-top: 6px;
}

.page-products .ver-card p {
  margin-top: 10px;
  font-size: 16px;
}

.page-products .plate {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: auto;
  padding-top: 16px;
  margin-top: 18px;
  border-top: var(--hair);
}

.page-products .plate__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--warm-gold);
  flex: 0 0 auto;
}

.page-products .plate__text {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.page-products .prod-figure {
  margin: clamp(34px, 5vw, 56px) 0 0;
}

.page-products .prod-figure img,
.page-products .prod-retain__figure img,
.page-products .prod-settings__figure img,
.page-products .prod-compare__plate img,
.page-products .prod-ios__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .prod-figure img {
  aspect-ratio: 2 / 1;
  border: var(--hair);
  background: var(--ink-800);
}

.page-products .image-frame__caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* ---------- iOS 中心 ---------- */
.page-products .prod-ios {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .prod-ios__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-products .prod-ios__figure {
  margin: 0;
}

.page-products .prod-ios__figure img {
  aspect-ratio: 3 / 2;
  border: var(--hair);
  background: var(--ink-800);
}

.page-products .ios-spec {
  margin: 26px 0 0;
  padding: 0;
  border-top: var(--hair);
}

.page-products .ios-spec__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px 0;
  border-bottom: var(--hair);
}

.page-products .ios-spec dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-products .ios-spec dd {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text-primary);
}

/* ---------- 留存带 ---------- */
.page-products .prod-retain {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .retain-strip {
  display: grid;
  grid-template-columns: repeat(15, minmax(0, 1fr));
  gap: var(--prod-strip-gap);
  margin-top: 30px;
}

.page-products .retain-strip__cell {
  aspect-ratio: 1 / 1.5;
  background: var(--chart-cyan);
  border: 1px solid var(--chart-cyan);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-products .retain-strip__cell--open {
  background: transparent;
  border-color: var(--warm-gold);
}

.page-products .retain-strip__cell:hover {
  background: var(--warm-gold);
  border-color: var(--warm-gold);
}

.page-products .retain-strip__cell--open:hover {
  background: var(--warm-gold);
}

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

.page-products .retain-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-products .retain-legend__dot {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  border: 1px solid var(--grid);
}

.page-products .retain-legend__dot--filled {
  background: var(--chart-cyan);
  border-color: var(--chart-cyan);
}

.page-products .retain-legend__dot--open {
  background: transparent;
  border-color: var(--warm-gold);
}

.page-products .retain-legend__dot--out {
  background: transparent;
  border-color: var(--grid);
}

.page-products .prod-retain__figure {
  margin: clamp(32px, 5vw, 52px) 0 0;
}

.page-products .prod-retain__figure img {
  aspect-ratio: 5 / 3;
  border: var(--hair);
  background: var(--ink-700);
}

/* ---------- 功能对照 ---------- */
.page-products .prod-compare {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-products .prod-compare__grid {
  margin-top: 26px;
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.page-products .table-scroll {
  overflow-x: auto;
  border-top: var(--hair);
}

.page-products .cap-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: transparent;
}

.page-products .cap-table__caption {
  text-align: left;
  padding: 14px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-products .cap-table thead th {
  text-align: left;
  padding: 10px 14px 10px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--text-muted);
  white-space: nowrap;
}

.page-products .cap-table tbody th {
  text-align: left;
  padding: 16px 14px 16px 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  color: var(--warm-gold);
  border-bottom: var(--hair);
  vertical-align: top;
  white-space: nowrap;
}

.page-products .cap-table tbody td {
  padding: 16px 14px 16px 0;
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-primary);
  border-bottom: var(--hair);
  vertical-align: top;
}

.page-products .cap-table tbody tr:hover td,
.page-products .cap-table tbody tr:hover th {
  background: rgba(95, 184, 198, 0.07);
}

.page-products .prod-compare__plate {
  margin: 0;
  border-left: var(--hair);
  padding-left: clamp(0px, 2vw, 24px);
}

.page-products .prod-compare__plate img {
  aspect-ratio: 5 / 3;
  border: var(--hair);
  background: var(--ink-700);
}

.page-products .prod-compare__note {
  font-size: 14px;
  color: var(--text-muted);
  border-top: var(--hair);
  padding-top: 14px;
  margin-top: 16px;
  max-width: 46ch;
}

/* ---------- 设置 ---------- */
.page-products .prod-settings {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .prod-settings__grid {
  margin-top: 30px;
  display: grid;
  gap: clamp(30px, 4vw, 48px);
}

.page-products .switch-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .switch-list__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  align-items: start;
  padding: 20px 0;
  border-top: var(--hair);
}

.page-products .switch-list__item:last-child {
  border-bottom: var(--hair);
}

.page-products .switch-list__item p {
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.7;
  margin-top: 8px;
  max-width: 52ch;
}

.page-products .switch {
  position: relative;
  width: 44px;
  height: 24px;
  margin-top: 4px;
  border: 1px solid var(--grid);
  background: var(--ink-800);
  flex: 0 0 auto;
}

.page-products .switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  background: var(--text-muted);
  transition: transform 240ms var(--ease), background 240ms var(--ease);
}

.page-products .switch--on {
  border-color: var(--settled);
}

.page-products .switch--on::after {
  background: var(--settled);
  transform: translateX(20px);
}

.page-products .prod-settings__figure {
  margin: 0;
}

.page-products .prod-settings__figure img {
  aspect-ratio: 12 / 7;
  border: var(--hair);
  background: var(--ink-800);
}

/* ---------- 版本戳 ---------- */
.page-products .prod-stamp {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-products .prod-stamp .h2 {
  color: var(--prod-paper-ink);
}

.page-products .prod-stamp__copy {
  color: var(--prod-paper-muted);
  font-size: 16.5px;
  max-width: 64ch;
}

.page-products .prod-stamp a {
  border-bottom-color: var(--prod-plate);
  color: var(--prod-paper-ink);
}

.page-products .prod-stamp__eyebrow {
  color: var(--prod-paper-muted);
}

.page-products .stamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 30px;
  padding: 16px 18px;
  border: 1px solid var(--prod-plate);
  background: transparent;
}

.page-products .stamp__mark {
  color: var(--draw-red);
  font-size: 13px;
  line-height: 1;
}

.page-products .stamp__text {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--prod-paper-ink);
}

.page-products .stamp .btn {
  margin-inline-start: auto;
}

.page-products .prod-stamp__links {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(60, 74, 105, 0.35);
}

.page-products .prod-stamp__links p {
  color: var(--prod-paper-muted);
  max-width: 66ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .retain-strip {
    grid-template-columns: repeat(30, minmax(0, 1fr));
  }

  .page-products .ios-spec__row {
    grid-template-columns: 140px 1fr;
    align-items: baseline;
    gap: 16px;
  }

  .page-products .ver-card__metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-products .retain-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 860px) {
  .page-products .prod-hero__aside {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    padding-top: 26px;
  }

  .page-products .hero-stat + .hero-stat {
    border-left: var(--hair);
    padding-left: clamp(18px, 3vw, 32px);
  }

  .page-products .ver-panels {
    grid-template-columns: 1.85fr 1fr;
  }

  .page-products .prod-ios__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-products .prod-ios__figure {
    margin-top: 8px;
  }

  .page-products .prod-compare__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-products .prod-settings__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .prod-settings__figure {
    position: sticky;
    top: 120px;
  }
}

@media (min-width: 1080px) {
  .page-products .prod-compare__plate {
    padding-left: 28px;
  }

  .page-products .cap-table tbody td {
    padding-right: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .retain-strip__cell,
  .page-products .switch::after {
    transition: none;
  }
}