.page-products {
  --cat-gap: clamp(1.1rem, 2.6vw, 2rem);
  --cat-cut-sm: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products [id] {
  scroll-margin-top: 6.5rem;
}

/* ---------- 页头 ---------- */
.page-products .cat-head {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 4rem) var(--gutter) clamp(1.6rem, 4vw, 3rem);
  background:
    radial-gradient(120% 90% at 86% 4%, rgba(47, 211, 224, 0.16), transparent 62%),
    linear-gradient(158deg, var(--grad-a), var(--grad-b) 68%, var(--ink));
  border-bottom: 1px solid var(--line);
}

.page-products .cat-head::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(47, 211, 224, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(47, 211, 224, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
}

.page-products .cat-head > .shell {
  position: relative;
  z-index: 1;
}

.page-products .cat-head .breadcrumbs {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-products .cat-head .breadcrumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-products .cat-head .breadcrumbs a:hover {
  color: var(--signal);
}

.page-products .cat-head .divider-slash {
  width: 14px;
  height: 1px;
  background: var(--line-strong);
  transform: rotate(-32deg);
  display: inline-block;
}

.page-products .cat-head__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.3rem, 8.5vw, 5.2rem);
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 0.4rem 0 1.1rem;
  color: var(--mist);
}

.page-products .cat-head .lede {
  color: rgba(232, 241, 245, 0.86);
  font-size: clamp(0.98rem, 1.15vw, 1.08rem);
  margin: 0 0 clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-products .cat-head__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.55rem;
}

.page-products .cat-head__facts li {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(12, 43, 71, 0.62);
  padding: 0.32rem 0.72rem;
  clip-path: var(--cat-cut-sm);
}

.page-products .cat-head__facts .num {
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-right: 0.28rem;
}

/* ---------- 图片容器 ---------- */
.page-products .cat-shot {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: var(--cut-corners);
  overflow: hidden;
}

.page-products .cat-shot .frame__media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.page-products .cat-shot--hero .frame__media {
  aspect-ratio: 1400 / 600;
}

.page-products .cat-shot--square .frame__media {
  aspect-ratio: 1 / 1;
}

.page-products .cat-shot .frame__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .cat-shot .frame__cap {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 0.65rem 0.9rem;
  margin: 0;
  border-top: 1px solid var(--line-soft);
  background: rgba(6, 26, 46, 0.66);
}

.page-products .cat-stage {
  max-width: var(--shell);
  margin: clamp(1.8rem, 4.5vw, 3rem) auto 0;
  padding: 0 var(--gutter);
}

/* ---------- 章节骨架 ---------- */
.page-products .cat-sec {
  padding: clamp(2.4rem, 6vw, 4.6rem) var(--gutter);
  position: relative;
}

.page-products .cat-sec + .cat-sec {
  border-top: 1px dashed rgba(47, 211, 224, 0.16);
}

.page-products .cat-sec__head {
  display: grid;
  gap: 0.55rem 1.6rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.6rem);
}

.page-products .cat-sec__head .bignum {
  font-family: var(--font-mono);
  line-height: 0.9;
  color: var(--cyan);
  opacity: 0.85;
}

.page-products .cat-sec__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.6vw, 2.3rem);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 0 0 0.55rem;
  color: var(--mist);
}

.page-products .cat-sec__lede {
  margin: 0;
  max-width: 38rem;
  color: rgba(232, 241, 245, 0.76);
  font-size: 0.98rem;
}

.page-products .cat-sec__lede .num,
.page-products .cat-note .num {
  font-family: var(--font-mono);
  color: var(--signal);
}

@media (min-width: 860px) {
  .page-products .cat-sec__head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 0 2.4rem;
  }
}

/* ---------- 01 资料卡片 ---------- */
.page-products .cat-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
  align-items: start;
}

@media (min-width: 620px) {
  .page-products .cat-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-products .cat-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .cat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--cut-corners);
  padding: 1.3rem 1.15rem 1.15rem;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-products .cat-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: #0e3252;
}

.page-products .cat-card:focus-within {
  border-color: var(--cyan);
}

.page-products .cat-card__sum {
  position: relative;
  display: block;
  padding-right: 2rem;
  cursor: pointer;
  list-style: none;
}

.page-products .cat-card__sum::-webkit-details-marker {
  display: none;
}

.page-products .cat-card__sum::after {
  content: "+";
  position: absolute;
  top: 0;
  right: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-products .cat-card[open] .cat-card__sum::after {
  content: "−";
  color: var(--ink);
  background: var(--cyan);
}

.page-products .cat-card__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.page-products .cat-card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--signal);
  padding: 0.16rem 0.5rem;
  clip-path: var(--cat-cut-sm);
  margin-bottom: 0.7rem;
}

.page-products .cat-card__title {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--mist);
  margin-bottom: 0.45rem;
}

.page-products .cat-card__meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .cat-card__body {
  margin-top: 1rem;
  padding-top: 0.95rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.88rem;
  color: rgba(232, 241, 245, 0.78);
}

.page-products .cat-card__body p {
  margin: 0 0 0.75rem;
}

.page-products .cat-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .cat-card__list li {
  position: relative;
  padding-left: 0.9rem;
  margin-bottom: 0.35rem;
  font-size: 0.84rem;
  color: rgba(232, 241, 245, 0.7);
}

.page-products .cat-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 通用分栏 ---------- */
.page-products .cat-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
  align-items: start;
}

@media (min-width: 900px) {
  .page-products .cat-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(1.6rem, 3.5vw, 3rem);
  }

  .page-products .cat-split--5-3 {
    grid-template-columns: minmax(0, 5fr) minmax(0, 3fr);
  }
}

.page-products .cat-split__aside .frame__media {
  aspect-ratio: 3 / 2;
}

.page-products .cat-split__aside.cat-shot--square .frame__media {
  aspect-ratio: 1 / 1;
}

/* ---------- 列表与注释 ---------- */
.page-products .cat-list {
  list-style: none;
  margin: 0 0 1.3rem;
  padding: 0;
}

.page-products .cat-list li {
  position: relative;
  padding: 0.85rem 0 0.85rem 1.25rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.94rem;
  color: rgba(232, 241, 245, 0.8);
}

.page-products .cat-list li:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-products .cat-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.55rem;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-products .cat-list strong {
  color: var(--signal);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.03em;
}

.page-products .cat-note {
  font-size: 0.86rem;
  color: var(--muted);
  border-left: 2px solid var(--line-strong);
  padding-left: 0.85rem;
  margin: 0 0 0.9rem;
}

.page-products .cat-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-products .cat-note a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 适配清单表格 ---------- */
.page-products .cat-tablewrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  clip-path: var(--cut-corners);
  background: rgba(12, 43, 71, 0.5);
}

.page-products .cat-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.page-products .cat-table__cap {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 0.8rem 1rem 0.4rem;
}

.page-products .cat-table thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.page-products .cat-table tbody th {
  text-align: left;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--mist);
  padding: 0.85rem 1rem;
  white-space: nowrap;
}

.page-products .cat-table tbody td {
  padding: 0.85rem 1rem;
  color: rgba(232, 241, 245, 0.76);
  border-bottom: 1px solid rgba(38, 48, 58, 0.9);
  vertical-align: top;
}

.page-products .cat-table tbody tr:last-child td,
.page-products .cat-table tbody tr:last-child th {
  border-bottom: none;
}

.page-products .cat-table tbody tr:hover td,
.page-products .cat-table tbody tr:hover th {
  background: rgba(47, 211, 224, 0.06);
}

.page-products .cat-table .num {
  font-family: var(--font-mono);
  color: var(--signal);
  font-size: 0.82rem;
}

/* ---------- 04 检索索引 ---------- */
.page-products .cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
}

.page-products .cat-tabs__item {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  padding: 0.45rem 1rem;
  text-decoration: none;
  clip-path: var(--cat-cut-sm);
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-products .cat-tabs__item:hover,
.page-products .cat-tabs__item:focus-visible {
  background: var(--cyan);
  color: var(--ink);
}

.page-products .cat-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cat-gap);
  align-items: start;
}

@media (min-width: 820px) {
  .page-products .cat-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.4rem, 3vw, 2.4rem);
  }
}

.page-products .cat-index__col {
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--cut-corners);
  padding: clamp(1.2rem, 3vw, 1.8rem);
}

.page-products .cat-index__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--mist);
  margin: 0 0 0.7rem;
}

.page-products .cat-index__title .num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--signal);
  margin-bottom: 0.35rem;
}

.page-products .cat-index__col p {
  margin: 0 0 1.1rem;
  font-size: 0.9rem;
  color: rgba(232, 241, 245, 0.76);
}

.page-products .cat-years {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-products .cat-years__node {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: rgba(38, 48, 58, 0.6);
  border: 1px solid var(--line-soft);
  padding: 0.3rem 0.72rem;
  clip-path: var(--cat-cut-sm);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-products .cat-years__node:hover {
  color: var(--signal);
  border-color: var(--line-strong);
  background: rgba(47, 211, 224, 0.08);
}

.page-products .cat-vers {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .cat-vers li {
  display: grid;
  gap: 0.25rem 1rem;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .cat-vers li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 480px) {
  .page-products .cat-vers li {
    grid-template-columns: minmax(0, 9rem) minmax(0, 1fr);
    align-items: baseline;
  }
}

.page-products .cat-vers__no {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  color: var(--signal);
}

.page-products .cat-vers__txt {
  font-size: 0.87rem;
  color: rgba(232, 241, 245, 0.74);
}

.page-products .cat-shot--mid {
  max-width: 620px;
  margin: clamp(1.8rem, 4vw, 2.6rem) auto 0;
}

.page-products .cat-shot--mid .frame__media {
  aspect-ratio: 3 / 2;
}

/* ---------- 05 阅读方式 ---------- */
.page-products .cat-read {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-bottom: 1.1rem;
}

.page-products .cat-read__item {
  background: rgba(12, 43, 71, 0.55);
  border: 1px solid var(--line-soft);
  clip-path: var(--cut-corners);
  padding: 1rem 1.1rem;
}

.page-products .cat-read__t {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--cyan);
  margin: 0 0 0.4rem;
}

.page-products .cat-read__item p {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(232, 241, 245, 0.76);
}

/* ---------- 06 场景对照 ---------- */
.page-products .cat-scenes {
  list-style: none;
  margin: 0 0 clamp(1.8rem, 4vw, 2.6rem);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line-soft);
}

@media (min-width: 820px) {
  .page-products .cat-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.6rem, 4vw, 3.4rem);
  }
}

.page-products .cat-scene {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 1.1rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cat-scene__no {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink);
  background: var(--signal);
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  clip-path: var(--cat-cut-sm);
  margin-top: 0.2rem;
}

.page-products .cat-scene__t {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
  color: var(--mist);
  margin: 0 0 0.4rem;
}

.page-products .cat-scene__body p {
  margin: 0 0 0.55rem;
  font-size: 0.88rem;
  color: rgba(232, 241, 245, 0.74);
}

.page-products .cat-scene__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-products .cat-scene__link:hover,
.page-products .cat-scene__link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 收尾 ---------- */
.page-products .cat-tail {
  background:
    linear-gradient(120deg, rgba(47, 211, 224, 0.1), transparent 58%),
    var(--graphite);
  border: 1px solid var(--line);
  clip-path: var(--cut-corners);
  padding: clamp(1.1rem, 3vw, 1.7rem) clamp(1.1rem, 3vw, 2rem);
}

.page-products .cat-tail p {
  margin: 0;
  font-size: 0.92rem;
  color: rgba(232, 241, 245, 0.84);
  max-width: 46rem;
}

.page-products .cat-tail a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 201, 60, 0.45);
}

.page-products .cat-tail a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-card,
  .page-products .cat-card__sum::after,
  .page-products .cat-tabs__item,
  .page-products .cat-years__node,
  .page-products .cat-scene__link {
    transition: none;
  }

  .page-products .cat-card:hover {
    transform: none;
  }
}