.page-products {
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 面包屑 ---------- */
.page-products .pp-crumb {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 18px var(--gutter) 0;
}

.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-products .breadcrumb a {
  color: var(--steel);
  text-decoration: none;
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--steel);
  opacity: .55;
}

.page-products .breadcrumb [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(37, 225, 206, .09) 0%, transparent 55%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-900) 70%, var(--ink-800) 100%);
  border-bottom: var(--bw-1) solid rgba(124, 147, 166, .28);
}

.page-products .pp-hero__shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
  padding-top: 30px;
  padding-bottom: 58px;
}

.page-products .pp-hero__eyebrow {
  display: inline-block;
  margin: 0 0 20px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--cyan);
  border: var(--bw-1) solid var(--cyan);
}

.page-products .pp-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 7.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-products .pp-hero__lede {
  max-width: 46ch;
  margin: 0 0 28px;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(243, 237, 224, .82);
}

.page-products .pp-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 28px;
}

.page-products .pp-stat {
  padding: 14px 12px;
  background: var(--ink-800);
  border: var(--bw-1) solid rgba(124, 147, 166, .35);
}

.page-products .pp-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 6vw, 2.3rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-stat__label {
  display: block;
  margin-top: 8px;
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pp-hero__preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.page-products .pp-phone {
  width: min(100%, 268px);
  padding: 8px;
  background: var(--ink-800);
  border: var(--bw-2) solid var(--rule);
  box-shadow: var(--shadow-hard-lg);
}

.page-products .pp-phone__figure {
  display: block;
  margin: 0;
  overflow: hidden;
  background: var(--ink-900);
}

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

.page-products .pp-phone__caption {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--steel);
  text-align: center;
}

/* ---------- 区块标题 ---------- */
.page-products .pp-head {
  margin-bottom: 32px;
}

.page-products .index-num {
  display: block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-products .pp-head__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-products .pp-head__lede {
  max-width: 62ch;
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(243, 237, 224, .76);
}

/* ---------- 三端形态 ---------- */
.page-products .pp-platforms {
  padding: 64px 0;
  background: var(--ink-900);
}

.page-products .pp-platforms__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .pp-seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 22px;
  border: var(--bw-1) solid var(--steel);
  background: var(--ink-800);
}

.page-products .pp-seg .segmented__tab {
  flex: 1 1 auto;
  min-height: 44px;
  padding: 10px 16px;
  border: 0;
  border-right: var(--bw-1) solid rgba(124, 147, 166, .35);
  background: transparent;
  color: var(--steel);
  font-family: var(--font-body);
  font-size: .86rem;
  cursor: pointer;
  transition: color 160ms var(--ease-out), background 160ms var(--ease-out);
}

.page-products .pp-seg .segmented__tab:last-child {
  border-right: 0;
}

.page-products .pp-seg .segmented__tab[aria-selected="true"] {
  background: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

.page-products .pp-seg .segmented__tab:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: -3px;
}

.page-products .pp-seg--grid .segmented__tab {
  flex: 1 1 calc(50% - 1px);
}

.page-products .segmented__panel {
  display: none;
}

.page-products .segmented__panel.is-active {
  display: block;
  animation: pp-slide 200ms var(--ease-out);
}

@keyframes pp-slide {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}

.page-products .pp-plat__scene {
  margin: 0 0 16px;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(243, 237, 224, .86);
}

.page-products .pp-plat__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .pp-plat__list li {
  position: relative;
  padding-left: 18px;
  font-size: .87rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-products .pp-plat__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-products .pp-platforms__art {
  display: block;
  margin: 0;
  border: var(--bw-1) solid rgba(124, 147, 166, .35);
  overflow: hidden;
  background: var(--ink-800);
}

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

/* ---------- 版本时间轴 ---------- */
.page-products .pp-releases {
  padding: 64px 0;
  background: var(--ink-800);
  border-top: var(--bw-1) solid rgba(124, 147, 166, .25);
  border-bottom: var(--bw-1) solid rgba(124, 147, 166, .25);
}

.page-products .pp-timeline {
  position: relative;
  padding: 8px 0;
}

.page-products .pp-timeline__bg {
  position: absolute;
  inset: 0;
  margin: 0;
  overflow: hidden;
  opacity: .14;
  pointer-events: none;
}

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

.page-products .pp-timeline__rail {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-timeline__rail::before {
  content: "";
  position: absolute;
  top: 26px;
  bottom: 26px;
  left: 13px;
  border-left: var(--bw-1) dashed var(--steel);
}

.page-products .pp-timeline__node {
  position: relative;
}

.page-products .pp-release {
  border: var(--bw-2) solid var(--steel);
  background: rgba(7, 27, 46, .9);
  box-shadow: var(--shadow-hard);
  transition: box-shadow 200ms var(--ease-out), border-color 200ms var(--ease-out);
}

.page-products .pp-release:hover {
  border-color: var(--cyan);
  box-shadow: var(--shadow-hard-lg);
}

.page-products .pp-release[open] {
  border-color: var(--cyan);
}

.page-products .pp-release__sum {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-products .pp-release__sum::-webkit-details-marker {
  display: none;
}

.page-products .pp-release__sum:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: -3px;
}

.page-products .pp-release__dot {
  grid-row: 1 / span 2;
  width: 12px;
  height: 12px;
  background: var(--cyan);
  border: var(--bw-1) solid var(--ink-900);
}

.page-products .pp-release__ver {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-products .pp-release__name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--paper);
}

.page-products .pp-release__body {
  padding: 0 18px 18px 42px;
}

.page-products .pp-release__body p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(243, 237, 224, .78);
}

/* ---------- 功能矩阵 ---------- */
.page-products .pp-features {
  padding: 64px 0;
  background: var(--ink-900);
}

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

.page-products .pp-features__art {
  display: block;
  margin: 0;
  border: var(--bw-2) solid var(--steel);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-products .pp-features__panel {
  border: var(--bw-1) solid rgba(124, 147, 166, .35);
  background: var(--ink-800);
  padding: 20px;
}

.page-products .pp-feature__scene {
  margin: 0 0 18px;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(243, 237, 224, .86);
}

.page-products .pp-feature__metric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
  font-size: .84rem;
  color: var(--steel);
}

.page-products .pp-feature__num {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 7vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-feature__unit {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--orange);
}

/* ---------- 同步链路 ---------- */
.page-products .pp-sync {
  padding: 64px 0;
  background: var(--ink-800);
  border-top: var(--bw-1) solid rgba(124, 147, 166, .25);
}

.page-products .pp-flow-wrap {
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 28px;
}

.page-products .pp-flow {
  display: block;
  width: 100%;
  min-width: 640px;
  height: auto;
}

.page-products .pp-flow line {
  stroke: var(--steel);
  stroke-width: 2;
  stroke-dasharray: 6 6;
}

.page-products .pp-flow rect {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2;
}

.page-products .pp-flow text {
  fill: rgba(243, 237, 224, .8);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}

.page-products .pp-sync__notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .pp-sync__note {
  padding: 18px;
}

.page-products .pp-sync__note p {
  margin: 12px 0 0;
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(243, 237, 224, .78);
}

/* ---------- 暖纸白区 ---------- */
.page-products .pp-paper {
  padding: 64px 0 72px;
  background: var(--paper);
  color: var(--black);
}

.page-products .pp-paper__inner {
  border-top: var(--bw-2) solid var(--rule);
  padding-top: 40px;
}

.page-products .pp-head--dark .index-num {
  color: var(--green);
}

.page-products .pp-head--dark .pp-head__title {
  color: var(--black);
}

.page-products .pp-head--dark .pp-head__lede {
  color: rgba(10, 16, 22, .74);
}

.page-products .pp-specs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--bw-1) solid var(--rule);
}

.page-products .pp-spec {
  padding: 20px 0;
  border-bottom: var(--bw-1) solid var(--rule);
}

.page-products .pp-spec__key {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: #5C5445;
  margin-bottom: 8px;
}

.page-products .pp-spec__val {
  display: block;
  font-family: var(--font-head);
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--black);
}

.page-products .pp-spec__note {
  margin: 8px 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: rgba(10, 16, 22, .68);
}

.page-products .pp-rule {
  margin: 56px 0 48px;
  border: 0;
  border-top: var(--bw-2) solid var(--black);
}

.page-products .pp-steps__art {
  display: block;
  margin: 0 0 28px;
  border: var(--bw-2) solid var(--black);
  box-shadow: 8px 8px 0 0 rgba(10, 16, 22, .18);
  overflow: hidden;
  background: #E4DCCB;
}

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

.page-products .pp-steps__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .pp-step {
  position: relative;
  padding: 22px 0 22px 46px;
  border-bottom: var(--bw-1) solid var(--rule);
}

.page-products .pp-step:first-child {
  border-top: var(--bw-1) solid var(--rule);
}

.page-products .pp-step__idx {
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: .9rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: .05em;
}

.page-products .pp-step__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--black);
}

.page-products .pp-step p {
  margin: 0;
  max-width: 58ch;
  font-size: .89rem;
  line-height: 1.8;
  color: rgba(10, 16, 22, .74);
}

/* ---------- 下一步 ---------- */
.page-products .pp-next {
  padding: 56px 0 64px;
  background: var(--green-deep);
  border-top: var(--bw-2) solid var(--green);
}

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

.page-products .pp-next .index-num {
  color: var(--cyan);
}

.page-products .pp-next__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.4rem, 4.4vw, 2.1rem);
  line-height: 1.2;
  color: var(--paper);
}

.page-products .pp-next__lede {
  max-width: 58ch;
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(243, 237, 224, .8);
}

.page-products .pp-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-products .pp-next__more {
  margin: 0;
  font-size: .85rem;
  color: rgba(243, 237, 224, .72);
  grid-column: 1 / -1;
}

.page-products .pp-next__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 225, 206, .5);
}

.page-products .pp-next__more a:hover,
.page-products .pp-next__more a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .pp-specs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }

  .page-products .pp-sync__notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-seg--grid .segmented__tab {
    flex: 1 1 auto;
  }

  .page-products .pp-steps__list {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 960px) {
  .page-products .pp-hero__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    padding-top: 44px;
    padding-bottom: 76px;
  }

  .page-products .pp-hero__preview {
    align-items: flex-end;
    padding-top: 8px;
  }

  .page-products .pp-platforms__layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 36px;
    align-items: start;
  }

  .page-products .pp-features__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
    align-items: stretch;
  }

  .page-products .pp-features__panel {
    padding: 26px;
  }

  .page-products .pp-timeline__rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-products .pp-timeline__rail::before {
    top: 26px;
    bottom: auto;
    left: 5%;
    right: 5%;
    height: 0;
    border-left: 0;
    border-top: var(--bw-1) dashed var(--steel);
  }

  .page-products .pp-release__sum {
    grid-template-columns: auto 1fr;
    align-items: start;
    gap: 6px 12px;
  }

  .page-products .pp-release__dot {
    margin-top: 4px;
  }

  .page-products .pp-next__shell {
    grid-template-columns: minmax(0, 7fr) auto;
    align-items: center;
    gap: 36px;
  }

  .page-products .pp-next__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .page-products .pp-specs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .segmented__panel.is-active {
    animation: none;
  }

  .page-products .pp-release,
  .page-products .pp-seg .segmented__tab {
    transition: none;
  }
}