.page-products {
  --cat-gap: 1.5rem;
  padding-bottom: 4rem;
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  padding: 2rem 0 3rem;
  overflow: hidden;
}

.page-products .cat-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -20%;
  height: 420px;
  background: radial-gradient(circle at 22% 40%, rgba(47, 243, 208, 0.16), transparent 62%);
  pointer-events: none;
}

.page-products .cat-hero__grid {
  position: relative;
  display: grid;
  gap: 2rem;
}

.page-products .cat-hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--mist);
}

.page-products .cat-hero__lead {
  margin: 0;
  max-width: 46ch;
  color: var(--mist-dim);
  line-height: 1.75;
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-products .cat-hero__panel {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-products .cat-panel__kicker {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-products .cat-panel__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1rem;
  margin: 1.25rem 0;
}

.page-products .cat-panel__stats dt {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--mist-faint);
  margin-bottom: 0.35rem;
}

.page-products .cat-panel__stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-products .cat-panel__note {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--mist-faint);
}

@media (min-width: 960px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: 3rem;
  }

  .page-products .cat-hero {
    padding: 3rem 0 4rem;
  }
}

/* ---------- 章节导航条 ---------- */
.page-products .cat-toc {
  margin: 0 0 1.5rem;
  padding: 0.6rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .cat-toc ol {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: max-content;
}

.page-products .cat-toc a {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.8125rem;
  color: var(--mist-dim);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-products .cat-toc a:hover,
.page-products .cat-toc a:focus-visible {
  color: var(--mist);
  background: rgba(29, 46, 42, 0.8);
}

.page-products .cat-toc a[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

/* ---------- 区块通用 ---------- */
.page-products .section {
  padding: 3rem 0;
}

.page-products .cat-band {
  background: linear-gradient(180deg, rgba(11, 31, 26, 0.92), rgba(11, 31, 26, 0.28));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .section-title {
  margin: 0.5rem 0 0.9rem;
  font-size: clamp(1.45rem, 3.6vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-products .section-desc {
  margin: 0;
  max-width: 62ch;
  color: var(--mist-dim);
  line-height: 1.75;
}

.page-products .cat-figure {
  margin: 1.75rem 0 0;
}

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

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

.page-products .cat-figure--ring {
  max-width: 420px;
  margin: 2.5rem auto 0;
}

/* ---------- 目录结构 ---------- */
.page-products .cat-tree {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-products .cat-branch {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 42, 35, 0.75), rgba(11, 31, 26, 0.6));
  overflow: hidden;
}

.page-products .cat-branch > summary {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  font-weight: 700;
  color: var(--mist);
  list-style: none;
}

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

.page-products .cat-branch > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--cyan);
}

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

.page-products .cat-branch__idx {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-products .cat-branch__list {
  margin: 0;
  padding: 0 1.15rem 1rem;
  list-style: none;
}

.page-products .cat-branch__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--mist-dim);
}

.page-products .cat-branch__list li span:last-child {
  color: var(--cyan);
  font-size: 0.875rem;
}

/* ---------- 标签筛选 ---------- */
.page-products .cat-filter {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.5rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-products .cat-filter__row {
  display: grid;
  gap: 0.55rem;
}

.page-products .cat-filter__label {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--mist-faint);
}

.page-products .cat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.page-products .cat-chips .chip {
  padding: 0.36rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(29, 46, 42, 0.7);
  color: var(--mist-dim);
  font-family: inherit;
  font-size: 0.8125rem;
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .cat-chips .chip:hover,
.page-products .cat-chips .chip:focus-visible {
  color: var(--mist);
  border-color: var(--teal);
}

.page-products .cat-chips .chip.is-active,
.page-products .cat-chips .chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.page-products .cat-legend {
  display: grid;
  gap: 1.75rem;
  margin-top: 2rem;
  align-items: center;
}

.page-products .cat-legend__body h3 {
  margin: 0 0 1rem;
  font-size: 1.2rem;
  color: var(--mist);
}

.page-products .cat-legend__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.8rem;
}

.page-products .cat-legend__list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--mist-dim);
}

.page-products .cat-legend__list b {
  color: var(--mist);
}

.page-products .cat-dot {
  flex: none;
  width: 0.6rem;
  height: 0.6rem;
  margin-top: 0.55rem;
  border-radius: 50%;
}

.page-products .cat-dot--cyan {
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(47, 243, 208, 0.6);
}

.page-products .cat-legend .signal-dot {
  flex: none;
  margin-top: 0.55rem;
}

.page-products .cat-legend__note {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist-faint);
}

@media (min-width: 780px) {
  .page-products .cat-legend {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 2rem;
  }
}

/* ---------- 红黄牌交叉 ---------- */
.page-products .cat-cross {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.5rem;
}

.page-products .cat-cross__label {
  margin: 0 0 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--mist-faint);
}

.page-products .cat-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 0.6rem;
  bottom: 0.6rem;
  width: 1px;
  background: var(--line);
}

.page-products .cat-timeline li {
  position: relative;
  display: grid;
  gap: 0.25rem;
  padding: 0 0 1.25rem 1.9rem;
}

.page-products .cat-timeline li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35rem;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--yellow);
  border: 3px solid var(--ink);
}

.page-products .cat-timeline li.is-red::before {
  background: var(--red);
}

.page-products .cat-timeline__time {
  font-size: 0.8125rem;
  color: var(--yellow);
}

.page-products .cat-timeline li.is-red .cat-timeline__time {
  color: var(--red-soft);
}

.page-products .cat-timeline__text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--mist-dim);
}

.page-products .cat-fixtures {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-fixture {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(29, 46, 42, 0.5);
  font-size: 0.9375rem;
  color: var(--mist-dim);
}

.page-products .cat-fixture__link {
  flex: none;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .cat-cross__note {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist-faint);
}

@media (min-width: 860px) {
  .page-products .cat-cross {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2.5rem;
  }
}

/* ---------- 导出 ---------- */
.page-products .cat-steps {
  display: grid;
  gap: 1rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-step {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: linear-gradient(135deg, rgba(20, 125, 107, 0.22), rgba(11, 31, 26, 0.85));
}

.page-products .cat-step__num {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-products .cat-step h3 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  color: var(--mist);
}

.page-products .cat-step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist-dim);
}

@media (min-width: 760px) {
  .page-products .cat-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

/* ---------- 控球率 ---------- */
.page-products .cat-possession {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-products .cat-ring-wrap {
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
}

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

.page-products .cat-ring__track {
  stroke: var(--line);
}

.page-products .cat-ring__value {
  stroke: var(--cyan);
  animation: catRingDraw 1.5s var(--ease) both;
}

@keyframes catRingDraw {
  from {
    stroke-dashoffset: 326.7;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.page-products .cat-ring__center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.25rem;
}

.page-products .cat-ring__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-products .cat-ring__cap {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--mist-faint);
}

.page-products .cat-possession__copy .section-title {
  margin-top: 0.5rem;
}

.page-products .cat-possession__copy > p {
  margin: 0;
  max-width: 56ch;
  color: var(--mist-dim);
  line-height: 1.75;
}

.page-products .cat-chips--views {
  margin-top: 1.5rem;
}

.page-products .cat-possession__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.page-products .cat-meta__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-products .cat-meta__label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--mist-faint);
}

@media (min-width: 900px) {
  .page-products .cat-possession {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
    gap: 3rem;
  }
}

/* ---------- 桌面端 ---------- */
.page-products .cat-desktop {
  display: grid;
  gap: 2rem;
  margin-top: 1.75rem;
  align-items: center;
}

.page-products .cat-rail-mock {
  display: flex;
  gap: 0.85rem;
  min-height: 200px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(20, 125, 107, 0.18), rgba(11, 31, 26, 0.9));
}

.page-products .cat-rail-mock__bar {
  flex: none;
  width: 64px;
  display: grid;
  align-content: start;
  gap: 0.5rem;
  padding: 0.7rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(10, 13, 12, 0.7);
}

.page-products .cat-rail-mock__item {
  height: 8px;
  border-radius: 4px;
  background: rgba(230, 242, 238, 0.16);
}

.page-products .cat-rail-mock__item.is-on {
  background: var(--cyan);
}

.page-products .cat-rail-mock__body {
  flex: 1;
  display: grid;
  align-content: start;
  gap: 0.6rem;
  padding-top: 0.4rem;
}

.page-products .cat-rail-mock__row {
  height: 12px;
  border-radius: 6px;
  background: rgba(230, 242, 238, 0.09);
}

.page-products .cat-rail-mock__row.is-wide {
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(230, 242, 238, 0.06);
  border: 1px solid var(--line);
}

.page-products .cat-desktop__points {
  display: grid;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-desktop__points h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--mist);
}

.page-products .cat-desktop__points p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist-dim);
}

@media (min-width: 860px) {
  .page-products .cat-desktop {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 2.75rem;
  }
}

/* ---------- 使用场景 ---------- */
.page-products .cat-scenes {
  margin-top: 1.5rem;
}

.page-products .cat-scene {
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(13, 42, 35, 0.8), rgba(11, 31, 26, 0.45));
}

.page-products .cat-scene__tag {
  margin: 0 0 0.7rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-products .cat-scene h3 {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
  color: var(--mist);
}

.page-products .cat-scene p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-products .cat-partners {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.75rem;
  padding: 1.4rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.page-products .cat-partner__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--yellow);
  font-variant-numeric: tabular-nums;
}

.page-products .cat-partner__label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--mist-faint);
}

.page-products .cat-partners__note {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--mist-faint);
}

@media (min-width: 760px) {
  .page-products .cat-partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: center;
    gap: 1.5rem;
  }

  .page-products .cat-partners__note {
    grid-column: 1 / -1;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }
}

/* ---------- 结尾 ---------- */
.page-products .cat-cta {
  padding-bottom: 2rem;
}

.page-products .cat-cta__inner {
  display: grid;
  gap: 1.5rem;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(20, 125, 107, 0.35), rgba(11, 31, 26, 0.92));
}

.page-products .cat-cta__inner h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.35rem, 3.4vw, 1.75rem);
  color: var(--mist);
}

.page-products .cat-cta__inner p {
  margin: 0;
  max-width: 52ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--mist-dim);
}

.page-products .cat-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-products .cat-cta__foot {
  margin: 1.25rem 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--mist-faint);
}

.page-products .cat-cta__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 208, 0.4);
}

.page-products .cat-cta__foot a:hover,
.page-products .cat-cta__foot a:focus-visible {
  border-bottom-color: var(--cyan);
}

@media (min-width: 780px) {
  .page-products .cat-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 2.25rem;
  }

  .page-products .cat-cta__actions {
    justify-content: flex-end;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .cat-ring__value {
    animation: none;
  }

  .page-products .cat-toc a,
  .page-products .cat-chips .chip {
    transition: none;
  }
}