.page-products {
  background-color: var(--color-surface);
  color: var(--color-ink);
  padding-top: var(--space-4);
  overflow-x: clip;
}

.page-products .prod-hero {
  padding: var(--space-6) 0 var(--space-8);
}

.page-products .prod-hero__title {
  margin: var(--space-3) 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  max-width: 12ch;
}

.page-products .prod-hero__lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .prod-hero__split {
  margin-top: var(--space-8);
  display: grid;
  gap: var(--space-4);
}

.page-products .prod-hero__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface-deep);
}

.page-products .prod-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 6 / 5;
  object-fit: cover;
}

.page-products .prod-hero__caption {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  background-color: var(--color-surface-deep);
}

.page-products .prod-hero__figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-products .prod-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-products .prod-figure__num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 0.92;
  color: var(--color-primary);
}

.page-products .prod-figure__label {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 940px) {
  .page-products .prod-hero__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--space-6);
    align-items: end;
  }

  .page-products .prod-hero__figures {
    padding-left: var(--space-3);
    border-left: var(--border-thin) solid var(--color-line);
  }
}

@media (min-width: 1024px) {
  .page-products .prod-hero__figure {
    margin-left: calc(-1 * var(--space-4));
  }
}

/* 章节索引 */
.page-products .prod-index {
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface-alt);
}

.page-products .prod-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
}

.page-products .prod-index__link {
  display: block;
  padding: var(--space-3) 0;
  white-space: nowrap;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-products .prod-index__link:hover {
  color: var(--color-primary);
}

.page-products .prod-index__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-products .prod-index__link.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* 区块底座 */
.page-products .prod-band {
  padding: var(--space-8) 0;
}

.page-products .prod-band--alt {
  background-color: var(--color-surface-alt);
}

.page-products .prod-band--deep {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-products .prod-band--soft {
  background-color: var(--color-primary-soft);
}

@media (min-width: 900px) {
  .page-products .prod-band {
    padding: var(--section-y) 0;
  }
}

.page-products .prod-band__head {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-products .prod-band--deep .prod-band__head {
  border-bottom-color: var(--color-contrast-line);
}

.page-products .prod-band__no {
  display: block;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-products .prod-band--deep .prod-band__no {
  color: var(--color-contrast-accent);
}

.page-products .prod-band__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-products .prod-band__sub {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-products .prod-band--deep .prod-band__sub {
  color: var(--color-contrast-ink);
}

@media (min-width: 900px) {
  .page-products .prod-band__title {
    font-size: var(--text-3xl);
  }
}

/* 错位图文 */
.page-products .prod-shift {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.page-products .prod-media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface-deep);
}

.page-products .prod-media--deep {
  background-color: var(--color-contrast-surface);
}

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

.page-products .prod-media__scrim {
  position: absolute;
  inset: 0;
  background-image: var(--overlay-scrim);
  pointer-events: none;
}

.page-products .prod-media__chip {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  padding: 4px var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-accent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.page-products .prod-shift__body p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-products .prod-shift__body p:last-child {
  margin-bottom: 0;
}

.page-products .prod-band--deep .prod-shift__body p {
  color: var(--color-contrast-ink);
}

@media (min-width: 900px) {
  .page-products .prod-shift {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: start;
    margin-bottom: var(--space-8);
  }

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

  .page-products .prod-shift--flip .prod-shift__media {
    order: 2;
  }

  .page-products .prod-shift--flip .prod-shift__body {
    order: 1;
  }

  .page-products .prod-shift__body {
    margin-top: var(--space-6);
  }
}

/* 六类脚法 */
.page-products .prod-methods {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-method {
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-products .prod-method__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.page-products .prod-method__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
}

.page-products .prod-method__name {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
}

.page-products .prod-method__glyph {
  flex: none;
  width: 64px;
  height: 40px;
  margin-left: auto;
}

.page-products .prod-method__node {
  fill: var(--color-primary);
}

.page-products .prod-method__stop {
  fill: var(--color-primary);
  opacity: 0.55;
}

.page-products .prod-method__line {
  stroke: var(--color-accent);
  stroke-width: 2;
  fill: none;
}

.page-products .prod-method__line--bold {
  stroke-width: 3;
}

.page-products .prod-method__line--dashed {
  stroke-dasharray: 5 4;
}

.page-products .prod-method__arrow {
  fill: var(--color-accent);
}

.page-products .prod-method:hover .prod-method__line {
  stroke: var(--color-primary);
}

.page-products .prod-method:hover .prod-method__arrow {
  fill: var(--color-primary);
}

.page-products .prod-method__note {
  margin: var(--space-1) 0 0;
  padding-left: var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 900px) {
  .page-products .prod-methods {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(3, auto);
    grid-auto-flow: column;
    column-gap: var(--space-6);
  }
}

/* 五种扑救方向 */
.page-products .prod-dive {
  display: grid;
  gap: var(--space-4);
}

.page-products .prod-dive__map {
  width: 100%;
  max-width: 420px;
  height: auto;
}

.page-products .dive-map__frame {
  stroke: var(--color-contrast-line);
  stroke-width: 1.5;
  fill: none;
}

.page-products .dive-map__spot {
  fill: var(--color-contrast-line);
}

.page-products .dive-dir__line {
  stroke: var(--color-contrast-line);
  stroke-width: 2;
  transition: stroke 160ms ease, stroke-width 160ms ease;
}

.page-products .dive-dir__num {
  fill: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: 0.65;
}

.page-products .dive-dir:hover .dive-dir__line,
.page-products .dive-dir:focus .dive-dir__line {
  stroke: var(--color-contrast-accent);
  stroke-width: 3.5;
}

.page-products .dive-dir:hover .dive-dir__num,
.page-products .dive-dir:focus .dive-dir__num {
  fill: var(--color-contrast-accent);
  opacity: 1;
}

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

.page-products .prod-dive__item {
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-products .prod-dive__item:first-child {
  padding-top: 0;
  border-top: none;
}

.page-products .prod-dive__name {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-products .prod-dive__idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-contrast-accent);
}

.page-products .prod-dive__desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

@media (min-width: 900px) {
  .page-products .prod-dive {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: start;
  }
}

/* 出口区 */
.page-products .prod-exit {
  display: grid;
  gap: var(--space-4);
}

.page-products .prod-exit__body p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-products .prod-exit__body p:last-child {
  margin-bottom: 0;
}

.page-products .prod-exit__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-products .prod-exit__link {
  display: block;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
  background-color: var(--color-surface);
  color: inherit;
  text-decoration: none;
}

.page-products .prod-exit__link:hover {
  background-color: var(--color-surface-alt);
}

.page-products .prod-exit__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-products .prod-exit__label {
  display: block;
  margin-bottom: 2px;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-products .prod-exit__desc {
  display: block;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 900px) {
  .page-products .prod-exit {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: var(--space-6);
    align-items: start;
  }
}

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