/* ===== page-products : 产品中心 ===== */
.page-products {
  --pd-block-gap: var(--space-4);
  display: block;
}

/* ---- 首屏 ---- */
.page-products .pd-hero {
  padding-block-start: var(--space-3);
  padding-block-end: var(--space-8);
}

.page-products .pd-kicker {
  margin: var(--space-4) 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.page-products .pd-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-display);
  line-height: 0.95;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-products .pd-hero__lede {
  margin: var(--space-4) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .pd-hero__banner {
  margin-block: var(--space-6);
  border-block: var(--border-thick) solid var(--color-ink);
  background: var(--color-contrast-surface);
}

.page-products .pd-hero__frame {
  position: relative;
  overflow: hidden;
}

.page-products .pd-hero__frame .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 5;
  object-fit: cover;
}

.page-products .pd-hero__frame .media-frame__tint {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--color-accent) 32%, transparent);
}

.page-products .pd-hero__frame .media-frame__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-products .pd-hero__caption {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
}

.page-products .pd-hero__caption p {
  margin: 0;
  max-width: 30ch;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-contrast-ink);
}

.page-products .pd-hero__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pd-block-gap);
}

/* ---- 模块目录 ---- */
.page-products .pd-mods {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  align-content: start;
}

.page-products .pd-mod {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-2);
  border: var(--border-thick) solid var(--color-ink);
  box-shadow: var(--shadow-2);
  text-decoration: none;
  transition: transform 160ms ease-out;
}

.page-products .pd-mod:hover,
.page-products .pd-mod:focus-visible {
  transform: translate(-2px, -2px);
}

.page-products .pd-mod__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  opacity: 0.85;
}

.page-products .pd-mod__name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-lg);
  line-height: 1.14;
  letter-spacing: var(--tracking-heading);
}

.page-products .pd-mod__hint {
  font-size: var(--text-sm);
  line-height: 1.5;
  opacity: 0.86;
}

.page-products .pd-mod:nth-child(1) {
  min-height: 170px;
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-products .pd-mod:nth-child(2) {
  min-height: 132px;
  margin-block-start: var(--space-4);
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-products .pd-mod:nth-child(3) {
  min-height: 132px;
  background: var(--color-primary-soft);
  color: var(--color-ink);
}

.page-products .pd-mod:nth-child(4) {
  min-height: 170px;
  margin-block-start: var(--space-4);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

/* ---- 关键数字 ---- */
.page-products .pd-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  align-content: start;
}

.page-products .pd-metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-2);
  border: var(--border-thick) solid var(--color-ink);
  box-shadow: var(--shadow-1);
  background: var(--color-surface-alt);
}

.page-products .pd-metric__value {
  align-self: flex-start;
  padding-inline: 0.12em;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-2xl);
  line-height: 1;
  letter-spacing: -0.02em;
  background: var(--color-highlight);
  color: var(--color-ink);
}

.page-products .pd-metric:nth-child(2) .pd-metric__value,
.page-products .pd-metric:nth-child(4) .pd-metric__value {
  background: var(--color-primary-soft);
}

.page-products .pd-metric__label {
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-ink-soft);
}

.page-products .pd-hint {
  margin: var(--space-4) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* ---- 模块区块 ---- */
.page-products .pd-block {
  scroll-margin-top: var(--space-8);
}

.page-products .chapter-head {
  padding-block-end: var(--space-3);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.page-products .chapter-head__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-2xl);
  line-height: 1.06;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-products .chapter-head__index {
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  color: var(--color-accent);
}

.page-products .chapter-head__meta {
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-products .pd-block__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pd-block-gap);
  margin-block-start: var(--space-4);
}

.page-products .pd-body-text {
  display: grid;
  gap: var(--space-3);
}

.page-products .pd-lead {
  display: grid;
  gap: var(--space-3);
}

.page-products .pd-lead__row {
  margin: 0;
  padding-inline-start: var(--space-3);
  border-inline-start: var(--border-thick) solid var(--color-line);
}

.page-products .pd-lead__row--do {
  border-inline-start-color: var(--color-primary);
}

.page-products .pd-lead__row--get {
  border-inline-start-color: var(--color-accent);
}

.page-products .pd-lead__tag {
  display: block;
  width: fit-content;
  margin-block-end: var(--space-1);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  background: var(--color-surface-deep);
  color: var(--color-ink-soft);
}

.page-products .pd-lead__text {
  display: block;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .pd-fit {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-products .pd-fit__k {
  display: inline-block;
  margin-inline-end: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.page-products .pd-follow {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.page-products .pd-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pd-link:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---- 图片块 ---- */
.page-products .pd-block__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--border-thick) solid var(--color-ink);
  box-shadow: var(--shadow-2);
  background: var(--color-contrast-surface);
}

.page-products .pd-block__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-products .pd-block__media--wide img {
  aspect-ratio: 45 / 28;
}

.page-products .pd-block__media .media-frame__tint {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--color-primary) 34%, transparent);
}

.page-products .pd-block__media--accent .media-frame__tint {
  background: color-mix(in srgb, var(--color-accent) 34%, transparent);
}

.page-products .pd-block__body--duo .pd-duo-media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  align-content: start;
}

/* ---- 折叠 ---- */
.page-products .pd-expand {
  margin: 0;
  border: var(--border-thick) solid var(--color-ink);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-products .pd-expand summary {
  cursor: pointer;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-base);
  color: var(--color-ink);
  background: var(--color-primary-soft);
}

.page-products .pd-expand .expand__body {
  padding: var(--space-3);
}

.page-products .pd-list {
  margin: 0;
  padding-inline-start: var(--space-4);
  display: grid;
  gap: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

/* ---- 组合表 ---- */
.page-products .pd-combo__lede {
  margin: var(--space-4) 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .pd-table-scroll {
  overflow-x: auto;
  border: var(--border-thick) solid var(--color-ink);
  box-shadow: var(--shadow-2);
  background: var(--color-surface);
}

.page-products .pd-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-products .pd-table th {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  vertical-align: bottom;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: var(--color-contrast-ink);
  background: var(--color-contrast-surface);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.page-products .pd-table th + th {
  border-inline-start: var(--border-thin) solid var(--color-contrast-line);
}

.page-products .pd-table th:nth-child(1) { width: 13%; }
.page-products .pd-table th:nth-child(2) { width: 22%; }
.page-products .pd-table th:nth-child(3) { width: 20%; }
.page-products .pd-table th:nth-child(4) { width: 29%; }
.page-products .pd-table th:nth-child(5) { width: 16%; }

.page-products .pd-table td {
  padding: var(--space-3);
  vertical-align: top;
  line-height: 1.6;
  color: var(--color-ink-soft);
  border-bottom: var(--border-thin) solid var(--color-line);
}

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

.page-products .pd-table td:first-child {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-base);
  color: var(--color-ink);
}

.page-products .pd-table td:last-child {
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
}

.page-products .pd-combo__foot {
  margin: var(--space-4) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---- 收尾 ---- */
.page-products .pd-outro__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-products .pd-outro__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-xl);
  line-height: 1.1;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-products .pd-outro__text p {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.9;
}

.page-products .pd-outro__text p:last-child {
  margin-block-end: 0;
}

.page-products .pd-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: flex-start;
}

/* ---- 响应式 ---- */
@media (min-width: 900px) {
  .page-products .pd-hero__split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 2fr);
    gap: var(--space-6);
  }

  .page-products .pd-block__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-6);
    align-items: start;
  }

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

  .page-products .pd-block--flip .pd-body-text {
    order: 2;
  }

  .page-products .pd-block--flip .pd-block__media,
  .page-products .pd-block--flip .pd-duo-media {
    order: 1;
  }

  .page-products .pd-block__body--duo {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-products .pd-outro__panel {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    align-items: center;
  }
}

@media (max-width: 560px) {
  .page-products .pd-mods {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .pd-mod:nth-child(2),
  .page-products .pd-mod:nth-child(4) {
    margin-block-start: 0;
  }

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

  .page-products .pd-block__body--duo .pd-duo-media {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .pd-hero__caption p {
    font-size: var(--text-base);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-mod {
    transition: none;
  }

  .page-products .pd-mod:hover,
  .page-products .pd-mod:focus-visible {
    transform: none;
  }
}