.page-products {
  background: var(--m6-ink);
  color: var(--m6-white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: calc(var(--m6-header-h) + 32px);
  padding-bottom: 44px;
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(30, 51, 80, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 51, 80, 0.55) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 80%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 80%);
}

.page-products .pd-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-products .pd-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.36;
  filter: saturate(0.92);
  max-width: 100%;
}

.page-products .pd-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(115% 85% at 82% 8%, rgba(34, 211, 238, 0.24), transparent 62%),
    linear-gradient(180deg, rgba(7, 17, 31, 0.55) 0%, var(--m6-ink) 94%);
}

.page-products .pd-hero__inner {
  position: relative;
}

.page-products .pd-hero__crumb {
  margin-bottom: 26px;
}

.page-products .pd-hero__body {
  display: grid;
  gap: 32px;
}

.page-products .pd-hero__title {
  margin: 12px 0 16px;
  max-width: 15em;
  text-shadow: 0 0 26px rgba(34, 211, 238, 0.28);
}

.page-products .pd-hero__lead {
  max-width: 34em;
}

.page-products .pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .pd-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--m6-grid);
  border: 1px solid var(--m6-grid);
}

.page-products .pd-hero__stat {
  background: rgba(13, 27, 46, 0.86);
  padding: 16px 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .pd-num {
  font-family: var(--m6-font-mono);
  font-weight: 700;
  font-size: 34px;
  line-height: 1;
  color: var(--m6-lime);
  letter-spacing: -0.02em;
}

.page-products .pd-num em {
  font-style: normal;
  font-size: 14px;
  margin-left: 3px;
  color: var(--m6-cyan);
}

.page-products .pd-hero__stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--m6-steel);
}

/* ---------- 通用章节 ---------- */
.page-products .pd-section {
  padding: 56px 0;
}

.page-products .pd-head {
  max-width: 700px;
  margin-bottom: 32px;
}

.page-products .pd-head .m6-h2 {
  margin: 10px 0 14px;
}

.page-products .pd-head .m6-lead {
  margin: 0;
}

/* ---------- 技能树路径 ---------- */
.page-products .pd-path {
  background: var(--m6-ink-2);
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-tree {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .pd-node {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
}

.page-products .pd-node__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6px;
}

.page-products .pd-node__num {
  font-family: var(--m6-font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--m6-ink);
  background: var(--m6-cyan);
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.page-products .pd-node__rail::after {
  content: "";
  flex: 1 1 auto;
  width: 1px;
  min-height: 20px;
  margin-top: 10px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.6), rgba(34, 211, 238, 0.06));
}

.page-products .pd-node:last-child .pd-node__rail::after {
  display: none;
}

.page-products .pd-node__card {
  padding: 20px 20px 22px;
  transition: transform 0.2s var(--m6-ease), border-color 0.2s var(--m6-ease);
}

.page-products .pd-node__card:hover,
.page-products .pd-node__card:focus-within {
  transform: translateY(-2px);
  border-color: rgba(34, 211, 238, 0.45);
}

.page-products .pd-node__card h3 {
  margin: 0 0 8px;
}

.page-products .pd-node__card p {
  margin: 0 0 14px;
  color: var(--m6-white);
  opacity: 0.86;
  font-size: 15px;
  line-height: 1.75;
}

.page-products .pd-node__link {
  font-size: 14px;
}

/* ---------- 订阅 ---------- */
.page-products .pd-subs {
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-split {
  display: grid;
  gap: 26px;
}

.page-products .pd-split__cards {
  display: grid;
  gap: 14px;
}

.page-products .pd-plan {
  padding: 20px;
  border-left: 2px solid var(--m6-grid);
}

.page-products .pd-plan:hover {
  border-left-color: var(--m6-cyan);
}

.page-products .pd-plan__tag {
  display: inline-block;
  font-family: var(--m6-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--m6-cyan);
  margin-bottom: 8px;
}

.page-products .pd-plan h3 {
  margin: 0 0 8px;
}

.page-products .pd-plan p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.86;
}

.page-products .pd-figure {
  margin: 0;
  border: 1px solid var(--m6-grid);
  background: var(--m6-ink-2);
}

.page-products .pd-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-products .pd-figure figcaption {
  padding: 12px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--m6-steel);
  border-top: 1px solid var(--m6-grid);
}

.page-products .pd-switch-block {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--m6-grid);
}

.page-products .pd-switch-block h3 {
  margin: 0 0 10px;
}

.page-products .pd-switch-block > p {
  margin: 0 0 4px;
  max-width: 62em;
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.86;
}

.page-products .pd-switch {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 16px 2px 14px;
  margin-top: 12px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-switch::-webkit-scrollbar {
  height: 6px;
}

.page-products .pd-switch::-webkit-scrollbar-thumb {
  background: var(--m6-grid);
  border-radius: 3px;
}

.page-products .pd-chip {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--m6-grid);
  border-radius: 999px;
  background: rgba(13, 27, 46, 0.85);
  color: var(--m6-white);
  font-size: 14px;
  white-space: nowrap;
  cursor: grab;
  transition: border-color 0.18s var(--m6-ease), color 0.18s var(--m6-ease), background 0.18s var(--m6-ease);
}

.page-products .pd-chip:hover {
  border-color: var(--m6-cyan);
  color: var(--m6-cyan);
}

.page-products .pd-chip--on {
  background: var(--m6-cyan);
  border-color: var(--m6-cyan);
  color: var(--m6-ink);
  font-weight: 700;
}

.page-products .pd-chip__no {
  font-family: var(--m6-font-mono);
  font-size: 11px;
  opacity: 0.72;
}

/* ---------- 统计对照 ---------- */
.page-products .pd-stats {
  background: var(--m6-ink-2);
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-stats__layout {
  display: grid;
  gap: 26px;
}

.page-products .pd-metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pd-metric {
  position: relative;
  border: 1px solid var(--m6-grid);
  background: rgba(7, 17, 31, 0.72);
  padding: 16px 18px 14px;
}

.page-products .pd-metric__id {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--m6-font-mono);
  font-size: 12px;
  color: var(--m6-cyan);
  opacity: 0.8;
}

.page-products .pd-metric__name {
  margin: 0 0 6px;
  font-family: var(--m6-font-display);
  font-size: 19px;
  font-style: italic;
  letter-spacing: -0.01em;
  color: var(--m6-white);
}

.page-products .pd-metric p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--m6-steel);
  padding-right: 28px;
}

.page-products .pd-metric__viz {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 24px;
  margin-top: 12px;
}

.page-products .pd-metric__viz i {
  display: block;
  width: 6px;
  height: 38%;
  background: var(--m6-cyan);
  opacity: 0.5;
}

.page-products .pd-metric__viz i:nth-child(2) {
  height: 70%;
  opacity: 0.72;
}

.page-products .pd-metric__viz i:nth-child(3) {
  height: 54%;
  background: var(--m6-orange);
  opacity: 0.72;
}

.page-products .pd-metric__viz i:nth-child(4) {
  height: 92%;
  background: var(--m6-lime);
  opacity: 0.9;
}

.page-products .pd-stats__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .pd-export {
  padding: 20px;
}

.page-products .pd-export h3 {
  margin: 0 0 8px;
}

.page-products .pd-export p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.86;
}

/* ---------- 多端 ---------- */
.page-products .pd-devices {
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-device-list {
  display: grid;
  gap: 16px;
}

.page-products .pd-device {
  position: relative;
  border: 1px solid var(--m6-grid);
  background: linear-gradient(160deg, rgba(13, 27, 46, 0.96), rgba(7, 17, 31, 0.96));
  padding: 22px 20px 24px;
  overflow: hidden;
  transition: transform 0.22s var(--m6-ease);
}

.page-products .pd-device::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--m6-cyan), rgba(34, 211, 238, 0));
}

.page-products .pd-device:hover {
  transform: translateY(-3px);
}

.page-products .pd-device__tag {
  font-family: var(--m6-font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--m6-orange);
}

.page-products .pd-device h3 {
  margin: 10px 0 8px;
}

.page-products .pd-device p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.84;
}

.page-products .pd-figure--wide {
  margin-top: 26px;
}

.page-products .pd-figure--wide img {
  aspect-ratio: 4 / 3;
}

/* ---------- 登录支持（暖纸阅读带） ---------- */
.page-products .pd-access {
  background: var(--m6-paper);
  color: #0A1524;
  padding: 56px 0;
  border-top: 1px solid var(--m6-grid);
  border-bottom: 1px solid rgba(10, 21, 36, 0.18);
}

.page-products .pd-tapecap {
  margin: 0 0 10px;
  font-family: var(--m6-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: #A63A1B;
}

.page-products .pd-head--paper .m6-h2 {
  color: #0A1524;
  margin: 0 0 12px;
}

.page-products .pd-head--paper .m6-lead {
  color: #33445C;
  margin: 0;
}

.page-products .pd-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: pd-step;
}

.page-products .pd-step {
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(10, 21, 36, 0.16);
  border-left: 3px solid var(--m6-orange);
  padding: 18px 20px 20px;
}

.page-products .pd-step__no {
  font-family: var(--m6-font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: #A63A1B;
}

.page-products .pd-step h3 {
  margin: 8px 0 8px;
  color: #0A1524;
  font-size: 20px;
}

.page-products .pd-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #2C3D55;
}

.page-products .pd-access__foot {
  margin-top: 26px;
  display: grid;
  gap: 16px;
  align-items: start;
  border-top: 1px dashed rgba(10, 21, 36, 0.28);
  padding-top: 22px;
}

.page-products .pd-access__foot p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #2C3D55;
}

.page-products .pd-mail {
  color: #A63A1B;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

/* ---------- 机构合作 ---------- */
.page-products .pd-coop {
  background: var(--m6-ink-2);
  border-bottom: 1px solid var(--m6-grid);
}

.page-products .pd-split--coop h2 {
  margin: 10px 0 14px;
}

.page-products .pd-coop__note {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--m6-steel);
}

.page-products .pd-coop__grid {
  margin-top: 30px;
  display: grid;
  gap: 14px;
}

.page-products .pd-coop__card {
  padding: 20px;
  border-top: 1px solid var(--m6-cyan);
}

.page-products .pd-coop__card h3 {
  margin: 0 0 8px;
}

.page-products .pd-coop__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  opacity: 0.86;
}

/* ---------- 收尾 ---------- */
.page-products .pd-cta {
  position: relative;
  padding: 52px 0 58px;
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(34, 211, 238, 0.16), transparent 60%),
    var(--m6-ink);
}

.page-products .pd-cta__inner {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-products .pd-cta h2 {
  margin: 0 0 10px;
}

.page-products .pd-cta p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--m6-steel);
}

.page-products .pd-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .pd-section,
  .page-products .pd-access {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .page-products .pd-hero {
    padding-top: calc(var(--m6-header-h) + 48px);
    padding-bottom: 64px;
  }

  .page-products .pd-node {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 18px;
  }

  .page-products .pd-node__num {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }

  .page-products .pd-node__card {
    padding: 24px 26px 26px;
  }

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

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

  .page-products .pd-coop__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pd-access__foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-products .pd-hero__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: end;
  }

  .page-products .pd-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pd-num {
    font-size: 40px;
  }

  .page-products .pd-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 34px;
    align-items: start;
  }

  .page-products .pd-split--coop {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-products .pd-stats__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 34px;
    align-items: start;
  }

  .page-products .pd-metric {
    padding: 18px 20px 16px;
  }

  .page-products .pd-device:nth-child(2) {
    transform: translateY(-14px);
  }

  .page-products .pd-device:nth-child(2):hover {
    transform: translateY(-17px);
  }

  .page-products .pd-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }

  .page-products .pd-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-products .pd-head {
    max-width: 760px;
  }

  .page-products .pd-node__card p {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-node__card,
  .page-products .pd-device,
  .page-products .pd-chip {
    transition: none;
  }

  .page-products .pd-node__card:hover,
  .page-products .pd-node__card:focus-within,
  .page-products .pd-device:hover,
  .page-products .pd-device:nth-child(2),
  .page-products .pd-device:nth-child(2):hover {
    transform: none;
  }
}