.page-products {
  --pd-gap: clamp(16px, 2.4vw, 28px);
  --pd-line: var(--grid);
}

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

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding-top: clamp(24px, 4vw, 48px);
}

.page-products .pd-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pd-gap);
  align-items: end;
}

.page-products .pd-title {
  margin: 14px 0 18px;
  font-family: var(--serif);
  font-size: clamp(32px, 6.2vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-products .pd-lead {
  margin: 0;
  max-width: 48ch;
  font-size: 18px;
  line-height: 1.75;
  color: var(--mist);
}

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

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

.page-products .pd-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--pitch);
}

.page-products .pd-stat__num {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.page-products .pd-stat__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

/* ---------- 通用章节头 ---------- */
.page-products .pd-head {
  max-width: 72ch;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-products .pd-head .section__lead {
  margin-top: 12px;
}

/* ---------- 平台章节 ---------- */
.page-products .pd-hero-media {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-products .pd-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--pd-line);
  scrollbar-width: thin;
}

.page-products .pd-tabs__link {
  flex: 0 0 auto;
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-products .pd-tabs__link:hover,
.page-products .pd-tabs__link:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-products .pd-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pd-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  background: var(--pitch);
  border: 1px solid var(--pd-line);
  scroll-margin-top: 180px;
  transition: border-color 120ms var(--ease), background-color 120ms var(--ease);
}

.page-products .pd-card:hover,
.page-products .pd-card:focus-within {
  border-color: var(--cyan);
  background: var(--panel);
}

.page-products .pd-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pd-card__icon {
  display: inline-flex;
  color: var(--cyan);
}

.page-products .pd-card__icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: square;
}

.page-products .pd-card__name {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.4;
  color: var(--mist);
}

.page-products .pd-card__meta {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--dim);
}

.page-products .pd-card__list {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .pd-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pd-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-products .pd-two {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pd-gap);
  align-items: center;
}

.page-products .pd-two--tail {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--pd-line);
}

.page-products .pd-note__title {
  margin: 12px 0 14px;
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.3;
  color: var(--mist);
}

.page-products .pd-note p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--dim);
  max-width: 56ch;
}

.page-products .pd-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 首次使用 ---------- */
.page-products .pd-start__body {
  min-width: 0;
}

.page-products .pd-steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-products .pd-step {
  padding-top: 14px;
  border-top: 2px solid var(--cyan);
}

.page-products .pd-step__num {
  display: block;
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
}

.page-products .pd-step__title {
  margin: 8px 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--mist);
}

.page-products .pd-step p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 大屏模式 ---------- */
.page-products .pd-screen__figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-products .pd-feats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pd-line);
  border: 1px solid var(--pd-line);
}

.page-products .pd-feat {
  padding: 22px 20px;
  background: var(--pitch);
}

.page-products .pd-feat__num {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  background: var(--cyan);
}

.page-products .pd-feat__title {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--mist);
}

.page-products .pd-feat p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--dim);
}

/* ---------- 设备要求表 ---------- */
.page-products .pd-spec-wrap {
  overflow-x: auto;
  border: 1px solid var(--pd-line);
  background: var(--pitch);
  -webkit-overflow-scrolling: touch;
}

.page-products .pd-spec {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.page-products .pd-spec th,
.page-products .pd-spec td {
  padding: 15px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--pd-line);
}

.page-products .pd-spec thead th {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--panel);
}

.page-products .pd-spec tbody th {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-products .pd-spec td {
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pd-spec tbody tr:last-child th,
.page-products .pd-spec tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pd-spec tbody tr:hover td,
.page-products .pd-spec tbody tr:hover th {
  background: rgba(53, 242, 208, 0.05);
}

/* ---------- 版本演进 ---------- */
.page-products .pd-rail {
  display: flex;
  gap: 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--pd-line);
  scrollbar-width: thin;
}

.page-products .pd-rail__item {
  position: relative;
  flex: 0 0 auto;
  padding: 0 22px 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.page-products .pd-rail__item::before {
  content: "";
  position: absolute;
  left: 22px;
  bottom: -3px;
  width: 5px;
  height: 5px;
  background: var(--pd-line);
}

.page-products .pd-rail__item::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: -1px;
  height: 2px;
  background: transparent;
}

.page-products .pd-rail__item--on {
  color: var(--cyan);
}

.page-products .pd-rail__item--on::before {
  background: var(--cyan);
}

.page-products .pd-rail__item--on::after {
  background: var(--cyan);
}

.page-products .pd-releases {
  margin-top: 22px;
  border-top: 1px solid var(--pd-line);
}

.page-products .pd-release {
  border-bottom: 1px solid var(--pd-line);
}

.page-products .pd-release summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-products .pd-release summary::-webkit-details-marker {
  display: none;
}

.page-products .pd-release summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .pd-release__code {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-products .pd-release__name {
  font-size: 17px;
  font-weight: 600;
  color: var(--mist);
  transition: color 120ms var(--ease);
}

.page-products .pd-release summary:hover .pd-release__name {
  color: var(--cyan-soft);
}

.page-products .pd-release__mark {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 20px;
  line-height: 1;
  color: var(--dim);
  transition: transform 200ms var(--ease), color 200ms var(--ease);
}

.page-products .pd-release[open] .pd-release__mark {
  color: var(--cyan);
  transform: rotate(45deg);
}

.page-products .pd-release__body {
  padding: 0 0 22px;
}

.page-products .pd-release__body p {
  margin: 0 0 14px;
  max-width: 70ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--dim);
}

.page-products .pd-release__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-versions__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

/* ---------- 会员权益 ---------- */
.page-products .pd-tier-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .pd-tier {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px;
  background: var(--pitch);
  border: 1px solid var(--pd-line);
}

.page-products .pd-tier--top {
  border-color: var(--cyan);
  background:
    linear-gradient(180deg, rgba(53, 242, 208, 0.1), rgba(53, 242, 208, 0) 55%),
    var(--pitch);
}

.page-products .pd-tier__name {
  margin: 0;
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.3;
  color: var(--mist);
}

.page-products .pd-tier__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--dim);
}

.page-products .pd-tier__list {
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-tier__list li {
  position: relative;
  padding: 11px 0 11px 26px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--mist);
  border-bottom: 1px solid rgba(30, 74, 62, 0.7);
}

.page-products .pd-tier__list li:last-child {
  border-bottom: 0;
}

.page-products .pd-tier__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 11px;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-products .pd-tier--top .pd-tier__list li::before {
  color: var(--orange);
}

/* ---------- 安装排障 ---------- */
.page-products .pd-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-help__item {
  padding-left: 16px;
  border-left: 2px solid var(--orange);
}

.page-products .pd-help__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--mist);
}

.page-products .pd-help__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--dim);
}

.page-products .pd-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 44px);
  padding: 26px 22px;
  background: var(--panel);
  border: 1px solid var(--pd-line);
  border-left: 3px solid var(--cyan);
}

.page-products .pd-cta__title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 24px;
  color: var(--mist);
}

.page-products .pd-cta__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--dim);
  max-width: 52ch;
}

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

/* ---------- 媒体容器补强 ---------- */
.page-products .media-frame {
  min-width: 0;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pd-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pd-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .pd-help {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 28px;
  }
}

@media (min-width: 900px) {
  .page-products .pd-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .pd-two {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(24px, 3.4vw, 46px);
  }

  .page-products .pd-two--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .pd-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .page-products .pd-tier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-products .pd-cta {
    padding: 30px 32px;
  }
}

@media (min-width: 1120px) {
  .page-products .pd-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pd-feats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-tabs__link,
  .page-products .pd-card,
  .page-products .pd-release__mark,
  .page-products .pd-release__name {
    transition: none;
  }
}