.page-products {
  --pp-hair: var(--c-line);
  --pp-hair-dark: var(--c-line-dark);
  --pp-radius: 22px 6px 22px 6px;
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  overflow: hidden;
  color: var(--c-text-on-dark);
  padding: clamp(1.6rem, 4vw, 2.6rem) 0 clamp(2.2rem, 5vw, 3.6rem);
  background:
    radial-gradient(120% 95% at 88% 6%, rgba(178, 108, 255, .30), transparent 58%),
    radial-gradient(95% 80% at 4% 96%, rgba(95, 211, 232, .20), transparent 62%),
    linear-gradient(168deg, var(--c-ink-900) 0%, var(--c-ink-800) 58%, var(--c-teal-800) 100%);
  border-radius: 0 0 52px 8px;
}

.page-products .cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(115deg, transparent 48.4%, rgba(95, 211, 232, .13) 49.5%, transparent 50.6%),
    linear-gradient(64deg, transparent 61.8%, rgba(178, 108, 255, .12) 62.9%, transparent 64.1%),
    linear-gradient(152deg, transparent 29.6%, rgba(234, 247, 251, .07) 30.6%, transparent 31.8%);
  background-size: 430px 430px, 540px 540px, 320px 320px;
}

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

.page-products .cat-hero .breadcrumb {
  margin-bottom: clamp(1.1rem, 3vw, 1.8rem);
}

.page-products .cat-hero__grid {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  align-items: center;
}

.page-products .cat-hero__text h1 {
  margin: .6rem 0 0;
  font-size: clamp(1.85rem, 4.6vw, 3.25rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--c-snow);
}

.page-products .cat-hero__text .lede {
  margin-top: 1rem;
  max-width: 40ch;
  color: var(--c-text-on-dark-soft);
  font-size: var(--fs-body);
  line-height: 1.85;
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-products .cat-hero .btn--ghost {
  color: var(--c-ice-300);
  border-color: rgba(95, 211, 232, .55);
}

.page-products .cat-hero__figure {
  position: relative;
  margin: 0;
  border-radius: 34px 10px 34px 10px;
  overflow: hidden;
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, .9);
}

.page-products .cat-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .cat-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.8rem, 4vw, 2.8rem) 0 0;
  background: var(--pp-hair-dark);
  border: 1px solid var(--pp-hair-dark);
  border-radius: 18px 4px 18px 4px;
  overflow: hidden;
}

.page-products .cat-stats__item {
  background: rgba(6, 26, 46, .58);
  padding: .9rem 1rem;
}

.page-products .cat-stats__item dt {
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  color: var(--c-text-on-dark-soft);
}

.page-products .cat-stats__num {
  margin: .3rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3.6vw, 2.3rem);
  font-weight: 700;
  color: var(--c-ice-300);
  line-height: 1;
}

/* ---------- 双轨布局 ---------- */
.page-products .cat-layout {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
  padding: clamp(1.8rem, 4vw, 3rem) 0 clamp(2.4rem, 5vw, 4rem);
}

.page-products .cat-index {
  border-left: 3px solid var(--c-ice-300);
  padding: .2rem 0 .2rem .9rem;
}

.page-products .cat-index__title {
  margin: 0 0 .6rem;
  font-size: var(--fs-xs);
  letter-spacing: .16em;
  color: var(--c-ice-600);
}

.page-products .cat-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .1rem .9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-index__link {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  padding: .38rem 0;
  color: var(--c-text-soft);
  text-decoration: none;
  font-size: var(--fs-sm);
  line-height: 1.4;
  transition: color .18s ease;
}

.page-products .cat-index__link:hover,
.page-products .cat-index__link:focus-visible {
  color: var(--c-ice-600);
}

.page-products .cat-index__no {
  font-size: var(--fs-xs);
  color: var(--c-grey-300);
  flex: 0 0 auto;
}

.page-products .cat-index__link:hover .cat-index__no {
  color: var(--c-violet-500);
}

.page-products .cat-main {
  display: grid;
  gap: clamp(1.2rem, 3vw, 1.9rem);
  min-width: 0;
}

/* ---------- 面板 ---------- */
.page-products .cat-block {
  padding: clamp(1.25rem, 3vw, 2.2rem);
  border-radius: var(--pp-radius);
  scroll-margin-top: 96px;
}

.page-products .cat-block__head {
  margin-bottom: clamp(1rem, 2.4vw, 1.5rem);
}

.page-products .cat-block__head h2 {
  margin: .45rem 0 0;
  letter-spacing: -.01em;
}

.page-products .cat-block__lead {
  margin: .75rem 0 0;
  max-width: 62ch;
  color: var(--c-text-soft);
  font-size: var(--fs-body);
  line-height: 1.8;
}

.page-products .cat-note {
  margin: 1.1rem 0 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--c-text-soft);
  border-left: 3px solid var(--c-amber-400);
  padding-left: .85rem;
}

.page-products .cat-inline {
  color: var(--c-ice-600);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* ---------- 分类树 ---------- */
.page-products .cat-tree {
  display: grid;
  gap: .1rem;
}

.page-products .cat-branch {
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .cat-branch > summary {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) auto;
  align-items: center;
  gap: .65rem;
  padding: .8rem .15rem;
  cursor: pointer;
  list-style: none;
}

.page-products .cat-branch > summary::-webkit-details-marker {
  display: none;
}

.page-products .cat-branch > summary::after {
  content: "";
  width: .52rem;
  height: .52rem;
  border-right: 2px solid var(--c-ice-600);
  border-bottom: 2px solid var(--c-ice-600);
  transform: rotate(45deg);
  transition: transform .2s ease;
  justify-self: end;
}

.page-products .cat-branch[open] > summary::after {
  transform: rotate(-135deg);
}

.page-products .cat-branch__no {
  font-size: var(--fs-sm);
  color: var(--c-violet-500);
  font-weight: 700;
}

.page-products .cat-branch__name {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -.01em;
}

.page-products .cat-branch__meta {
  font-size: var(--fs-xs);
  color: var(--c-text-soft);
  white-space: nowrap;
}

.page-products .cat-branch__body {
  padding: 0 0 1.1rem 2.4rem;
}

.page-products .cat-branch__body p {
  margin: 0 0 .7rem;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--c-text-soft);
  max-width: 60ch;
}

.page-products .cat-branch__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .3rem;
}

.page-products .cat-branch__list li {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--c-text);
  padding: .35rem .6rem;
  border-radius: 8px 2px 8px 2px;
  background: linear-gradient(90deg, rgba(95, 211, 232, .12), rgba(95, 211, 232, 0));
}

.page-products .cat-branch__code {
  color: var(--c-ice-600);
  margin-right: .5rem;
  font-size: var(--fs-xs);
}

/* ---------- 图 ---------- */
.page-products .cat-figure {
  margin: 0 0 clamp(1rem, 2.5vw, 1.5rem);
  border-radius: 20px 5px 20px 5px;
  overflow: hidden;
}

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

/* ---------- 记录卡片流 ---------- */
.page-products .cat-cards {
  display: grid;
  gap: .9rem;
}

.page-products .cat-card {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--pp-hair);
  border-left: 4px solid var(--c-ice-300);
  border-radius: 16px 4px 16px 4px;
  background: linear-gradient(180deg, #ffffff, #F4FAFD);
  box-shadow: 0 20px 42px -36px rgba(6, 26, 46, .85);
}

.page-products .cat-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
}

.page-products .cat-card__no {
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  color: var(--c-ice-600);
}

.page-products .cat-card__path {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: .08em;
  color: var(--c-text-soft);
}

.page-products .cat-card__title {
  margin: .1rem 0 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-text);
}

.page-products .cat-card__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--c-text-soft);
}

.page-products .cat-card__foot {
  margin: .2rem 0 0;
  font-size: var(--fs-xs);
  color: var(--c-text-soft);
  padding-top: .55rem;
  border-top: 1px dashed var(--pp-hair);
}

/* ---------- 六步路径 ---------- */
.page-products .cat-path {
  counter-reset: pp-step;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .85rem;
}

.page-products .cat-path li {
  counter-increment: pp-step;
  position: relative;
  padding: .85rem .9rem .9rem 3.2rem;
  border-radius: 14px 4px 14px 4px;
  background: linear-gradient(135deg, rgba(29, 111, 165, .07), rgba(178, 108, 255, .05));
  border: 1px solid var(--pp-hair);
}

.page-products .cat-path li::before {
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: .85rem;
  top: .85rem;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-violet-500);
}

.page-products .cat-path__title {
  margin: 0 0 .3rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}

.page-products .cat-path p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--c-text-soft);
}

/* ---------- 模板 ---------- */
.page-products .cat-tpl-grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

.page-products .cat-figure--tpl {
  margin: 0;
}

.page-products .cat-tpl-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .6rem;
}

.page-products .cat-tpl {
  padding: .8rem .9rem;
  border-radius: 12px 3px 12px 3px;
  background: linear-gradient(100deg, rgba(242, 184, 75, .14), rgba(242, 184, 75, .02));
  border-left: 3px solid var(--c-amber-400);
}

.page-products .cat-tpl__name {
  margin: 0;
  font-weight: 700;
  color: var(--c-text);
  font-size: var(--fs-body);
}

.page-products .cat-tpl__scene {
  margin: .2rem 0 0;
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--c-text-soft);
}

/* ---------- 导出 ---------- */
.page-products .cat-export {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.6rem);
}

.page-products .cat-facts {
  margin: 0 0 1.1rem;
  display: grid;
  gap: 0;
}

.page-products .cat-facts__row {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: .7rem;
  padding: .6rem 0;
  border-bottom: 1px dashed var(--pp-hair);
}

.page-products .cat-facts__row dt {
  font-size: var(--fs-sm);
  color: var(--c-text-soft);
  letter-spacing: .04em;
}

.page-products .cat-facts__row dd {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--c-text);
}

.page-products .cat-figure--export {
  margin: 0;
}

/* ---------- 对照表 ---------- */
.page-products .cat-table__wrap {
  overflow-x: auto;
  border-radius: 14px 4px 14px 4px;
  border: 1px solid var(--pp-hair);
}

.page-products .cat-table {
  width: 100%;
  min-width: 380px;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.page-products .cat-table thead th {
  background: var(--c-ink-800);
  color: var(--c-snow);
  font-weight: 600;
  text-align: left;
  padding: .7rem .8rem;
  letter-spacing: .04em;
  white-space: nowrap;
}

.page-products .cat-table thead th.cat-table__now {
  color: var(--c-amber-400);
}

.page-products .cat-table tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--c-text);
  padding: .65rem .8rem;
  border-bottom: 1px solid var(--pp-hair);
  white-space: nowrap;
}

.page-products .cat-table tbody td {
  padding: .65rem .8rem;
  border-bottom: 1px solid var(--pp-hair);
  color: var(--c-text-soft);
  font-family: var(--font-mono);
}

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

.page-products .cat-table tbody td.cat-table__now {
  color: var(--c-ink-800);
  font-weight: 700;
  background: rgba(95, 211, 232, .10);
}

/* ---------- 问答 ---------- */
.page-products .cat-q-list {
  display: grid;
  gap: .1rem;
}

.page-products .cat-q {
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .cat-q > summary {
  position: relative;
  padding: .8rem 1.6rem .8rem 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.6;
}

.page-products .cat-q > summary::-webkit-details-marker {
  display: none;
}

.page-products .cat-q > summary::after {
  content: "+";
  position: absolute;
  right: .25rem;
  top: .72rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--c-ice-600);
  transition: transform .2s ease;
}

.page-products .cat-q[open] > summary::after {
  content: "−";
}

.page-products .cat-q__a {
  margin: 0 0 .95rem;
  padding-left: .85rem;
  border-left: 3px solid var(--c-ice-300);
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--c-text-soft);
}

/* ---------- 底部锚点块 ---------- */
.page-products .cat-anchor {
  margin-top: clamp(1.1rem, 2.6vw, 1.6rem);
  padding: clamp(1rem, 2.4vw, 1.5rem);
  border-radius: 18px 4px 18px 4px;
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(178, 108, 255, .18), transparent 60%),
    linear-gradient(160deg, var(--c-ink-800), var(--c-teal-800));
  color: var(--c-text-on-dark);
}

.page-products .cat-anchor__text {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--c-text-on-dark-soft);
  max-width: 56ch;
}

.page-products .cat-anchor__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1rem;
}

.page-products .cat-anchor .btn--ghost {
  color: var(--c-ice-300);
  border-color: rgba(95, 211, 232, .5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .cat-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-products .cat-card--wide {
    grid-column: span 2;
  }

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

@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(1.8rem, 4vw, 3.2rem);
  }

  .page-products .cat-hero__figure {
    transform: translateY(1.4rem);
  }

  .page-products .cat-export {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-products .cat-tpl-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-products .cat-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .8rem 1rem;
  }
}

@media (min-width: 980px) {
  .page-products .cat-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .cat-side {
    position: sticky;
    top: 96px;
  }

  .page-products .cat-index__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-index__link,
  .page-products .cat-branch > summary::after,
  .page-products .cat-q > summary::after {
    transition: none;
  }
}
<<<END>>>