.page-products {
  --cat-rail-w: 200px;
  --cat-gap: clamp(1rem, 3vw, 2.25rem);
  background-color: var(--night);
  color: var(--ink-light);
  padding-bottom: clamp(3rem, 9vw, 6rem);
}

.page-products a {
  color: var(--cyan);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: .5rem;
}

.page-products .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-products .breadcrumb-list li + li::before {
  content: "/";
  margin-right: .45rem;
  color: var(--edge);
}

.page-products .breadcrumb-list a {
  color: var(--ink-light);
  text-decoration: none;
  border-bottom: 1px solid var(--edge);
}

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

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
  padding-bottom: clamp(1.75rem, 5vw, 3rem);
  border-bottom: 1px solid var(--edge);
  overflow: hidden;
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(53, 240, 200, .045) 0 1px, transparent 1px 14px);
  pointer-events: none;
}

.page-products .cat-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-products .cat-kicker {
  margin: 0 0 .9rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-products h1 {
  margin: 0 0 1rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.85rem, 5.4vw, 3.05rem);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-products .cat-lead {
  margin: 0 0 1rem;
  max-width: 44ch;
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.75;
  color: var(--ink-light);
}

.page-products .cat-hero-note {
  margin: 0;
  padding-left: .85rem;
  border-left: 2px solid var(--orange);
  font-size: .92rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 42ch;
}

.page-products .cat-hero-figure {
  margin: 0;
  border: 1px solid var(--edge);
  background: var(--stand);
}

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

/* ---------- 主体骨架 ---------- */
.page-products .cat-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 2.5rem);
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

/* ---------- 左侧分区索引 ---------- */
.page-products .cat-rail {
  border-top: 1px solid var(--edge);
  padding-top: .9rem;
}

.page-products .cat-rail-head {
  margin: 0 0 .7rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-products .cat-rail-list {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .6rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .cat-rail-list li {
  flex: 0 0 auto;
}

.page-products .cat-rail-link {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  padding: .38rem .7rem;
  border: 1px solid var(--edge);
  border-radius: 999px;
  font-size: .84rem;
  white-space: nowrap;
  text-decoration: none;
  color: var(--ink-light);
  background: var(--stand);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .cat-rail-link span {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--cyan);
}

.page-products .cat-rail-link:hover,
.page-products .cat-rail-link:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: var(--stand-hi);
}

/* ---------- 章节通用 ---------- */
.page-products .cat-section {
  margin-top: clamp(3rem, 7vw, 5rem);
}

.page-products .cat-section:first-child {
  margin-top: 0;
}

.page-products .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: .4rem .7rem;
  margin-bottom: 1rem;
}

.page-products .section-num {
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .section-title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.4vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-products .rule {
  grid-column: 1 / -1;
  height: 1px;
  background: var(--edge);
}

.page-products .cat-sub {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 分区卡矩阵 ---------- */
.page-products .cat-matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-products .cat-lane {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  padding: 1.15rem 1.1rem 1rem;
  border: 1px solid var(--edge);
  background: linear-gradient(160deg, var(--stand-hi), var(--stand));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .cat-lane::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(53, 240, 200, .05) 0 1px, transparent 1px 12px);
  pointer-events: none;
}

.page-products .cat-lane:hover,
.page-products .cat-lane:focus-within {
  border-color: #2A5C51;
}

.page-products .cat-lane-head {
  position: relative;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .75rem;
}

.page-products .cat-lane-title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-products .cat-lane-count {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--amber);
  white-space: nowrap;
}

.page-products .cat-lane-list {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-lane-list li {
  padding: .22rem .5rem;
  border: 1px solid var(--edge);
  font-size: .8rem;
  color: var(--ink-light);
  background: rgba(14, 33, 28, .55);
}

.page-products .panel-trigger {
  position: relative;
  align-self: flex-start;
  padding: .3rem 0;
  border: 0;
  border-bottom: 1px dashed var(--edge);
  background: none;
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--cyan);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .panel-trigger:hover,
.page-products .panel-trigger:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--cyan);
}

.page-products .panel {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  transition: grid-template-rows var(--dur) var(--ease);
}

.page-products .panel[data-open],
.page-products .panel.is-open {
  grid-template-rows: 1fr;
}

.page-products .panel-inner {
  min-height: 0;
  position: relative;
}

.page-products .cat-field-list {
  margin: .4rem 0 0;
  padding: .7rem 0 0;
  list-style: none;
  border-top: 1px solid var(--edge);
}

.page-products .cat-field-list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .18rem 0;
  font-size: .82rem;
  color: var(--ink-light);
}

.page-products .cat-field-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 12px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 字段对照带 ---------- */
.page-products .cat-belt {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 84%);
  gap: .85rem;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding-bottom: .5rem;
  scrollbar-width: thin;
}

.page-products .cat-belt > * {
  scroll-snap-align: start;
}

.page-products .cat-field {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.15rem 1.05rem;
  border: 1px solid var(--edge);
  border-top: 3px solid var(--edge);
  background: var(--stand);
}

.page-products .cat-field--open {
  border-top-color: var(--cyan);
  background: var(--stand-hi);
}

.page-products .cat-field .tag {
  align-self: flex-start;
  margin: 0;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-products .cat-field-name {
  margin: 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--paper);
  letter-spacing: -.01em;
}

.page-products .cat-field-body {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--ink-light);
}

.page-products .cat-field-meta {
  margin: auto 0 0;
  padding-top: .7rem;
  border-top: 1px solid var(--edge);
  font-size: .8rem;
}

.page-products .cat-field-meta > div {
  display: flex;
  gap: .6rem;
  padding: .16rem 0;
}

.page-products .cat-field-meta dt {
  flex: 0 0 4.5em;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .74rem;
}

.page-products .cat-field-meta dd {
  margin: 0;
  color: var(--ink-light);
}

.page-products .cat-scroll-hint {
  margin: .35rem 0 0;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-products .cat-belt-figure,
.page-products .cat-history-figure,
.page-products .cat-compare-figure,
.page-products .cat-update-figure {
  margin: 1.5rem 0 0;
  border: 1px solid var(--edge);
  background: var(--stand);
  padding: .6rem;
}

.page-products .media-caption {
  margin: .6rem 0 .2rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .cat-next {
  margin: 1rem 0 0;
  padding-left: .85rem;
  border-left: 2px solid var(--cyan);
  font-size: .88rem;
  line-height: 1.75;
  color: var(--ink-light);
}

/* ---------- 赛程卡与入口 ---------- */
.page-products .cat-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-products .cat-pair-card {
  padding: 1.2rem 1.15rem;
  border: 1px solid var(--edge);
  background: var(--stand);
}

.page-products .cat-pair-card--accent {
  background: linear-gradient(150deg, rgba(255, 90, 43, .14), var(--stand) 62%);
  border-color: rgba(255, 90, 43, .42);
}

.page-products .cat-pair-title {
  margin: 0 0 .7rem;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--paper);
}

.page-products .cat-pair-card p {
  margin: 0 0 .7rem;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--ink-light);
}

.page-products .cat-pair-card p:last-child {
  margin-bottom: 0;
}

/* ---------- 历史回溯 ---------- */
.page-products .cat-filter-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--edge);
  background: var(--stand);
}

.page-products .cat-filter {
  padding: .9rem 1rem;
}

.page-products .cat-filter + .cat-filter {
  border-top: 1px solid var(--edge);
}

.page-products .cat-filter-key {
  margin: 0 0 .55rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-products .cat-filter-vals {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-filter-vals li {
  padding: .25rem .6rem;
  border: 1px solid var(--edge);
  font-size: .82rem;
  color: var(--ink-light);
}

.page-products .cat-filter-vals li:first-child {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-products .cat-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: catstep;
}

.page-products .cat-step {
  position: relative;
  padding: 1rem 1.1rem 1rem 1.5rem;
  border: 1px solid var(--edge);
  background: var(--stand-hi);
}

.page-products .cat-step::before {
  content: "";
  position: absolute;
  left: .55rem;
  top: 1.1rem;
  bottom: 1.1rem;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), transparent);
}

.page-products .cat-step-num {
  display: inline-block;
  margin-bottom: .4rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .cat-step-title {
  margin: 0 0 .4rem;
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper);
}

.page-products .cat-step-note {
  margin: 0;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 多联赛对照 ---------- */
.page-products .cat-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .85rem;
}

.page-products .cat-compare-pane {
  padding: 1rem 1.05rem;
  border: 1px solid var(--edge);
  background: var(--stand);
}

.page-products .cat-compare-pane--paper {
  background: var(--paper);
  border-color: #3E3120;
}

.page-products .cat-compare-head {
  margin: 0 0 .7rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--edge);
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-products .cat-compare-pane--paper .cat-compare-head {
  border-bottom-color: rgba(36, 28, 21, .25);
  color: #8A5A12;
}

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

.page-products .cat-compare-rows li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: .75rem;
  padding: .34rem 0;
  font-size: .85rem;
}

.page-products .cat-compare-key {
  color: var(--ink-light);
}

.page-products .cat-compare-val {
  font-family: var(--mono);
  font-size: .88rem;
  color: var(--cyan);
}

.page-products .cat-compare-pane--paper .cat-compare-key {
  color: #4A3E31;
}

.page-products .cat-compare-pane--paper .cat-compare-val {
  color: #0B4B3E;
  font-weight: 600;
}

.page-products .cat-compare-notes {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .6rem;
}

.page-products .cat-compare-notes li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--ink-light);
}

.page-products .cat-compare-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 收藏与同步 ---------- */
.page-products .cat-asym {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-products .cat-asym-main p {
  margin: 0 0 .9rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-light);
}

.page-products .cat-asym-main p:last-child {
  margin-bottom: 0;
}

.page-products .cat-asym-side {
  padding: 1.05rem 1.1rem;
  border: 1px solid var(--edge);
  border-left: 3px solid var(--amber);
  background: var(--stand);
}

.page-products .cat-asym-side-head {
  margin: 0 0 .6rem;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-products .cat-asym-side ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-asym-side li {
  padding: .32rem 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--ink-light);
  border-bottom: 1px solid rgba(30, 74, 65, .6);
}

.page-products .cat-asym-side li:last-child {
  border-bottom: 0;
}

/* ---------- 版本入口与收尾 ---------- */
.page-products .cat-section--tail .cat-update-figure {
  margin-top: 0;
}

.page-products .cat-update-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.25rem;
}

.page-products .btn {
  display: inline-flex;
  align-items: center;
  padding: .6rem 1.15rem;
  border: 1px solid var(--edge);
  border-radius: 2px;
  font-size: .88rem;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .btn-primary {
  background: var(--orange);
  border-color: var(--orange);
  color: #1A0C06;
  font-weight: 600;
}

.page-products .btn-primary:hover,
.page-products .btn-primary:focus-visible {
  background: #FF7048;
  border-color: #FF7048;
  color: #1A0C06;
}

.page-products .btn-ghost {
  background: transparent;
  color: var(--ink-light);
}

.page-products .btn-ghost:hover,
.page-products .btn-ghost:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 240, 200, .07);
}

.page-products .cat-outro {
  margin-top: clamp(3rem, 7vw, 4.5rem);
  padding: clamp(1.3rem, 4vw, 2rem) clamp(1.1rem, 3.5vw, 2rem);
  border: 1px solid var(--edge);
  border-top: 3px solid var(--cyan);
  background: linear-gradient(150deg, var(--stand-hi), var(--night));
}

.page-products .cat-outro-lead {
  margin: 0 0 1.1rem;
  max-width: 56ch;
  font-family: var(--serif);
  font-size: clamp(1rem, 2.6vw, 1.22rem);
  line-height: 1.7;
  color: var(--paper);
}

.page-products .cat-outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .cat-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

  .page-products .cat-filter + .cat-filter {
    border-top: 0;
    border-left: 1px solid var(--edge);
  }

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

@media (min-width: 900px) {
  .page-products .cat-belt {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-products .cat-scroll-hint {
    display: none;
  }

  .page-products .cat-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-products .cat-body {
    grid-template-columns: var(--cat-rail-w) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.25rem);
    align-items: start;
  }

  .page-products .cat-rail {
    position: sticky;
    top: 8rem;
    align-self: start;
    border-top: 0;
    border-left: 1px solid var(--edge);
    padding-top: 0;
    padding-left: 1rem;
  }

  .page-products .cat-rail-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .cat-rail-link {
    width: 100%;
    justify-content: space-between;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
    padding: .42rem .5rem .42rem .7rem;
    font-size: .88rem;
  }

  .page-products .cat-rail-link:hover,
  .page-products .cat-rail-link:focus-visible {
    border-left-color: var(--cyan);
    background: var(--stand);
    color: var(--cyan);
  }

  .page-products .cat-asym {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-products .cat-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem 1.1rem;
    padding-bottom: 1.6rem;
  }

  .page-products .cat-matrix > .cat-lane:nth-child(3n + 2) {
    transform: translateY(1.6rem);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }

  .page-products .cat-matrix > .cat-lane:nth-child(3n + 2) {
    transform: none;
  }
}