.page-products {
  --pp-section-gap: clamp(64px, 8vw, 132px);
  --pp-hair: 1px solid var(--grid-line);
  --pp-amber-soft: rgba(255, 177, 59, .16);
  --pp-cyan-soft: rgba(79, 209, 224, .16);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 44px) 0 clamp(48px, 6vw, 88px);
  background: linear-gradient(168deg, var(--ink) 0%, var(--deep) 62%, var(--ink) 100%);
  border-bottom: var(--pp-hair);
}

.page-products .cat-hero__aura {
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 150%;
  pointer-events: none;
  background:
    radial-gradient(46% 40% at 20% 26%, rgba(255, 177, 59, .13), transparent 72%),
    radial-gradient(42% 36% at 82% 16%, rgba(79, 209, 224, .10), transparent 74%);
}

.page-products .cat-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .cat-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: clamp(52px, 10vw, 148px);
  line-height: .92;
  letter-spacing: -.045em;
  color: var(--text);
}

.page-products .cat-hero__lede {
  margin-top: 22px;
  max-width: 40ch;
  color: var(--muted);
}

/* ---------- 路径图 ---------- */
.page-products .cat-path {
  margin-top: clamp(36px, 5vw, 68px);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding-bottom: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) transparent;
}

.page-products .cat-path::-webkit-scrollbar {
  height: 6px;
}

.page-products .cat-path::-webkit-scrollbar-thumb {
  background: var(--cyan);
  border-radius: 0;
}

.page-products .cat-path__nodes {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: max-content;
}

.page-products .cat-path__node {
  position: relative;
  flex: 0 0 212px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 20px 22px;
  background: rgba(18, 22, 20, .78);
  border: 1px solid var(--grid-line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: border-color var(--base) var(--ease), box-shadow var(--base) var(--ease);
}

.page-products .cat-path__node:hover,
.page-products .cat-path__node:focus-within {
  border-color: var(--amber);
  box-shadow: inset 0 0 0 1px var(--pp-amber-soft);
}

.page-products .cat-path__step {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-products .cat-path__name {
  font-family: var(--font-condensed);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-products .cat-path__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .cat-path__link {
  flex: 0 0 56px;
  display: grid;
  place-items: center;
  color: var(--cyan);
  opacity: .6;
}

/* ---------- 通用章节 ---------- */
.page-products .cat-sec {
  padding: var(--pp-section-gap) 0;
}

.page-products .cat-sec--overview {
  background: var(--ink);
}

.page-products .cat-sec--possession {
  background: var(--deep);
  border-top: var(--pp-hair);
  border-bottom: var(--pp-hair);
}

.page-products .cat-sec--offside {
  background: var(--ink);
}

.page-products .cat-sec--subs {
  background: var(--deep);
  border-top: var(--pp-hair);
  border-bottom: var(--pp-hair);
}

.page-products .cat-sec--index {
  background: var(--ink);
}

.page-products .cat-sec--table {
  background: var(--panel);
  border-top: var(--pp-hair);
  border-bottom: var(--pp-hair);
}

.page-products .cat-sec--path {
  background: var(--ink);
}

.page-products .cat-sec__head {
  max-width: 42ch;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.page-products .cat-sec__head--tight {
  margin-top: clamp(40px, 5vw, 72px);
}

.page-products .cat-sec__head h2 {
  margin: 10px 0 0;
  font-family: var(--font-condensed);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-products .cat-sec__head .lede {
  margin-top: 16px;
  color: var(--muted);
}

/* ---------- 目录总览 ---------- */
.page-products .cat-families {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}

.page-products .cat-family {
  position: relative;
  padding: 28px 26px 30px;
  background: var(--panel);
  border: 1px solid var(--grid-line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-products .cat-family--index {
  border-left: 3px solid var(--cyan);
}

.page-products .cat-family--stat {
  border-left: 3px solid var(--amber);
}

.page-products .cat-family__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-products .cat-family__title {
  margin: 12px 0 0;
  font-family: var(--font-condensed);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-products .cat-family__text {
  margin-top: 14px;
  color: var(--muted);
  max-width: 46ch;
}

.page-products .cat-family__note {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--grid-line);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-products .cat-record {
  position: relative;
  margin-top: clamp(36px, 5vw, 64px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--grid-line);
  border-left: 1px solid var(--grid-line);
}

.page-products .cat-record__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 24px;
  border-right: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}

.page-products .cat-record__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--amber);
  text-shadow: 0 0 1px rgba(255, 177, 59, .9);
}

.page-products .cat-record__label {
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--muted);
}

.page-products .cat-record .source-line {
  grid-column: 1 / -1;
  margin: 0;
  padding: 14px 20px 0;
  border-bottom: none;
}

/* ---------- 三组专页 ---------- */
.page-products .cat-detail {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  grid-template-columns: 1fr;
}

.page-products .cat-detail__figure {
  margin: 0;
}

.page-products .cat-detail__figure .figure__img {
  object-fit: cover;
}

.page-products .cat-detail__lead {
  margin-top: 16px;
  color: var(--text);
  max-width: 44ch;
}

.page-products .cat-fields {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid-line);
}

.page-products .cat-fields li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--grid-line);
}

.page-products .cat-fields__name {
  font-family: var(--font-condensed);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--text);
}

.page-products .cat-fields__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .cat-sample {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
  margin-top: 22px;
  padding: 18px 20px;
  background: var(--panel);
  border-left: 3px solid var(--amber);
  border-top: 1px solid var(--grid-line);
  border-right: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}

.page-products .cat-sample__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-products .cat-sample__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--text);
}

.page-products .cat-sample__note {
  flex: 1 1 100%;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .cat-sample--cyan {
  border-left-color: var(--cyan);
}

.page-products .cat-sample--cyan .cat-sample__tag,
.page-products .cat-sample--cyan .cat-sample__value {
  color: var(--cyan);
}

.page-products .cat-sample--gold {
  border-left-color: var(--gold-b);
  background-image: linear-gradient(90deg, rgba(233, 192, 112, .14), rgba(184, 122, 40, .06) 62%, transparent);
}

.page-products .cat-sample--gold .cat-sample__tag,
.page-products .cat-sample--gold .cat-sample__value {
  color: var(--gold-a);
}

.page-products .cat-detail__link {
  margin-top: 22px;
}

.page-products .cat-arrow {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--cyan);
  border-bottom: 1px solid var(--cyan-12);
  transition: border-color var(--base) var(--ease), color var(--base) var(--ease);
}

.page-products .cat-arrow::after {
  content: " →";
}

.page-products .cat-arrow:hover,
.page-products .cat-arrow:focus-visible {
  color: var(--text);
  border-bottom-color: var(--amber);
}

/* ---------- 索引章节 ---------- */
.page-products .cat-wide-figure {
  margin: 0;
}

.page-products .cat-wide-figure .figure__img {
  object-fit: cover;
}

.page-products .cat-index-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: 1fr;
}

.page-products .cat-index-card {
  padding: 26px 24px 28px;
  background: var(--panel);
  border: 1px solid var(--grid-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-products .cat-index-card__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-products .cat-index-card h3 {
  margin: 12px 0 0;
  font-family: var(--font-condensed);
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-products .cat-index-card p {
  margin-top: 14px;
  color: var(--muted);
  max-width: 44ch;
}

.page-products .cat-index-card__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid-line);
}

.page-products .cat-index-card__list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--grid-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .cat-index-card--split {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

.page-products .cat-index-card__figure {
  margin: 0;
  align-self: start;
}

.page-products .cat-index-card__figure .figure__img {
  object-fit: cover;
}

/* ---------- 表格 ---------- */
.page-products .cat-scroll-hint {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-products .cat-table__caption {
  caption-side: top;
  padding: 0 0 14px;
  text-align: left;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-products .cat-table th[scope="row"] {
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .cat-table td:nth-child(2) {
  color: var(--muted);
  min-width: 300px;
}

.page-products .cat-table td:last-child {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-products .cat-accordion {
  margin-top: 28px;
}

.page-products .accordion__panel p {
  margin: 0 0 12px;
  color: var(--muted);
}

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

.page-products .accordion__panel .note {
  color: var(--muted);
  font-size: 13px;
}

/* ---------- 进入路径 ---------- */
.page-products .cat-steps {
  position: relative;
  margin: 0;
  padding: 0 0 0 8px;
  list-style: none;
  border-left: 1px dashed var(--grid-line);
}

.page-products .cat-steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  padding: 0 0 clamp(28px, 4vw, 44px) 8px;
}

.page-products .cat-steps__item:last-child {
  padding-bottom: 0;
}

.page-products .cat-steps__num {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--ink);
  background: var(--amber);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background var(--base) var(--ease), color var(--base) var(--ease);
}

.page-products .cat-steps__item:hover .cat-steps__num {
  background: var(--cyan);
}

.page-products .cat-steps__body h3 {
  margin: 12px 0 0;
  font-family: var(--font-condensed);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-products .cat-steps__body p {
  margin-top: 10px;
  max-width: 52ch;
  color: var(--muted);
}

.page-products .cat-tip {
  position: relative;
  color: var(--text);
  border-bottom: 1px dashed var(--cyan);
  cursor: help;
  outline-offset: 3px;
}

.page-products .cat-tip__body {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  z-index: 3;
  display: block;
  width: min(280px, 70vw);
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  background: var(--ink);
  border: 1px solid var(--amber);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--fast) var(--ease), transform var(--fast) var(--ease), visibility var(--fast) linear;
}

.page-products .cat-tip:hover .cat-tip__body,
.page-products .cat-tip:focus-visible .cat-tip__body {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-products .cat-next {
  margin-top: clamp(40px, 5vw, 72px);
  padding: 28px 24px 24px;
  background: var(--panel);
  border: 1px solid var(--grid-line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-products .cat-next__text h3 {
  margin: 0;
  font-family: var(--font-condensed);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}

.page-products .cat-next__text p {
  margin-top: 12px;
  max-width: 52ch;
  color: var(--muted);
}

.page-products .cat-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products .cat-next .source-line {
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .cat-record {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .cat-steps__item {
    grid-template-columns: 64px 1fr;
    gap: 22px;
  }

  .page-products .cat-steps__num {
    width: 64px;
    height: 64px;
    font-size: 23px;
  }

  .page-products .cat-sample {
    align-items: center;
  }

  .page-products .cat-sample__note {
    flex: 1 1 240px;
  }
}

@media (min-width: 960px) {
  .page-products .cat-families {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-products .cat-detail {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .cat-detail__figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-products .cat-index-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 24px;
  }

  .page-products .cat-index-card--split {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: start;
  }

  .page-products .cat-steps {
    padding-left: 22px;
  }

  .page-products .cat-steps__item {
    grid-template-columns: 72px 1fr;
    gap: 28px;
  }

  .page-products .cat-steps__num {
    width: 72px;
    height: 72px;
    font-size: 26px;
  }
}

@media (min-width: 1200px) {
  .page-products .cat-detail {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 64px;
  }

  .page-products .cat-record__cell {
    padding: 28px 26px 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-path__node,
  .page-products .cat-arrow,
  .page-products .cat-tip__body,
  .page-products .cat-steps__num {
    transition: none;
  }
}