.page-products {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.page-products .num {
  font-family: var(--font-mono);
  font-weight: 600;
}

.page-products .breadcrumb {
  margin-top: calc(var(--header-h) + 1.4rem);
  margin-bottom: .25rem;
  font-size: .78rem;
}

/* ---------- 首屏 ---------- */

.page-products .cat-hero {
  position: relative;
  padding: 1.75rem 0 3.25rem;
  background:
    radial-gradient(900px 380px at 84% -10%, rgba(127, 168, 166, .30), rgba(127, 168, 166, 0) 62%),
    linear-gradient(180deg, rgba(226, 218, 200, .60), rgba(244, 241, 234, 0) 72%),
    var(--paper);
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 150px;
  background-image: repeating-linear-gradient(180deg, rgba(127, 168, 166, .26) 0 1px, transparent 1px 20px);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000);
  mask-image: linear-gradient(180deg, transparent, #000);
  pointer-events: none;
}

.page-products .cat-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.25rem;
}

.page-products .cat-hero__lead {
  min-width: 0;
}

.page-products .cat-hero__title {
  margin: .75rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 7vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -.012em;
  color: var(--ink-2);
}

.page-products .cat-hero__title::after {
  content: "";
  display: block;
  width: 72px;
  height: 4px;
  margin-top: 1.1rem;
  background: linear-gradient(90deg, var(--brass), var(--seal));
}

.page-products .cat-hero__lede {
  max-width: 44ch;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-products .cat-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.25rem;
  margin: 2rem 0 0;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
}

.page-products .cat-stat dt {
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-products .cat-stat dd {
  margin: .3rem 0 0;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink-2);
}

.page-products .cat-hero__figure {
  margin: 0;
  min-width: 0;
}

/* ---------- 章节骨架 ---------- */

.page-products .cat-section {
  position: relative;
}

.page-products .cat-split {
  display: grid;
  gap: 1.75rem;
}

.page-products .cat-split__side {
  min-width: 0;
}

.page-products .cat-split__body {
  min-width: 0;
}

.page-products .cat-index {
  margin: 0 0 .6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--brass);
  transition: color .3s var(--ease);
}

.page-products [data-section].is-active .cat-index {
  color: var(--seal);
}

.page-products .cat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.page-products [data-section].is-active .cat-tabs .tag--solid {
  background: var(--seal);
  border-color: var(--seal);
}

.page-products .cat-lead {
  margin-top: .5rem;
  max-width: 62ch;
  color: var(--ink-2);
}

/* ---------- 折叠档案 ---------- */

.page-products .cat-folds {
  margin-top: 1.75rem;
  border-top: 1px solid var(--line-2);
}

.page-products .fold {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-products .fold__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem .8rem;
  padding: 1.1rem .25rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink-2);
  transition: color .25s var(--ease);
}

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

.page-products .fold__head::after {
  content: "";
  margin-left: auto;
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .28s var(--ease);
}

.page-products .fold[open] .fold__head::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-products .fold__head:hover {
  color: var(--seal);
}

.page-products .fold__name {
  min-width: 0;
}

.page-products .fold__price {
  font-size: .82rem;
  color: var(--stone);
  letter-spacing: .02em;
}

.page-products .fold__body {
  padding: .25rem .25rem 1.4rem;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-products .fold__body p {
  margin: 0 0 .5rem;
}

.page-products .fold__body a {
  color: var(--seal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page-products .cat-price > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .35rem 1rem;
  padding: .55rem 0;
  border-bottom: 1px dashed var(--line-2);
}

.page-products .cat-price dt {
  font-size: .85rem;
  color: var(--muted);
}

.page-products .cat-price dd {
  margin: 0;
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink-2);
}

/* ---------- 对照面板 ---------- */

.page-products .cat-compare {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-products .cat-compare__col {
  padding: 1.35rem 1.25rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-products .cat-compare__coltitle {
  margin: 0 0 .9rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--line-2);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-2);
}

.page-products .cat-compare__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-products .cat-compare__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .5rem;
  padding: .55rem .6rem;
  border-radius: var(--radius);
  font-size: .9rem;
  line-height: 1.7;
  color: var(--ink-2);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}

.page-products .cat-compare__list li:hover,
.page-products .cat-compare__list li:focus-within {
  background: rgba(127, 168, 166, .16);
  box-shadow: inset 3px 0 0 var(--tide);
}

.page-products .cat-compare__list li span:last-child {
  flex: 1 1 12ch;
  min-width: 0;
}

.page-products .cat-panel-figure {
  margin: 2rem 0 0;
}

.page-products .cat-schedule-figure,
.page-products .cat-scene-figure,
.page-products .cat-version-figure {
  margin: 1.75rem 0 0;
}

.page-products .cat-inline-link {
  margin: 1.5rem 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-products .cat-inline-link a {
  color: var(--seal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 轮次卡 ---------- */

.page-products .cat-rounds {
  margin-top: 1.75rem;
  display: grid;
  gap: .75rem;
}

.page-products .cat-round {
  border: 1px solid var(--line);
  border-left: 3px solid var(--stone);
  border-radius: var(--radius);
  background: var(--paper-2);
  transition: border-left-color .25s var(--ease), transform .25s var(--ease);
}

.page-products .cat-round[open] {
  border-left-color: var(--seal);
}

.page-products .cat-round__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem .9rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
}

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

.page-products .cat-round__no {
  font-size: .84rem;
  letter-spacing: .04em;
  color: var(--brass);
}

.page-products .cat-round__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ink-2);
}

.page-products .cat-round__hint {
  margin-left: auto;
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-products .cat-round__body {
  padding: 0 1.15rem 1.15rem;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-products .cat-round__body p {
  margin: 0;
}

/* ---------- 场景卡 ---------- */

.page-products .cat-scenes {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-products .cat-scene {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.5rem 1.3rem;
  background: rgba(244, 241, 234, .06);
  border: 1px solid rgba(244, 241, 234, .22);
  border-top: 3px solid var(--tide);
  border-radius: var(--radius);
}

.page-products .cat-scene:nth-child(2) {
  border-top-color: var(--brass);
}

.page-products .cat-scene:nth-child(3) {
  border-top-color: var(--crimson);
}

.page-products .cat-scene__no {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--tide);
}

.page-products .cat-scene__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.14rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-products .cat-scene p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(244, 241, 234, .82);
}

.page-products .cat-scene__link {
  margin-top: auto;
  padding-top: .5rem;
}

.page-products .cat-scene__link a {
  font-size: .86rem;
  font-weight: 600;
  color: var(--brass);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .5);
  padding-bottom: 2px;
}

.page-products .cat-scene__link a:hover {
  color: var(--amber);
}

/* ---------- 版本演进 ---------- */

.page-products .cat-versions {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-products .cat-ver {
  position: relative;
  padding: 1.35rem 1.25rem 1.35rem 3.4rem;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-products .cat-ver::before {
  content: "";
  position: absolute;
  left: 1.35rem;
  top: 1.4rem;
  bottom: 1.4rem;
  width: 2px;
  background: linear-gradient(180deg, var(--brass), var(--tide));
}

.page-products .cat-ver__tag {
  margin: 0 0 .45rem;
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--stone);
}

.page-products .cat-ver__title {
  margin: 0 0 .55rem;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-2);
}

.page-products .cat-ver p:last-child {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- FAQ 与收尾 ---------- */

.page-products .cat-folds--faq {
  margin-top: 1.5rem;
}

.page-products .cat-cta {
  margin-top: 2.5rem;
  padding: 1.6rem 1.4rem;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--seal);
  border-radius: var(--radius);
}

.page-products .cat-cta__text {
  margin: 0 0 1.1rem;
  font-size: .98rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-products .cat-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 桌面 ---------- */

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

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

  .page-products .cat-compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .page-products .cat-compare__col {
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
  }

  .page-products .cat-compare__col + .cat-compare__col {
    border-left: 1px dashed var(--line);
  }

  .page-products .cat-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.75rem 1.8rem;
  }

  .page-products .cat-cta__text {
    margin: 0;
    max-width: 46ch;
  }
}

@media (min-width: 900px) {
  .page-products .cat-hero {
    padding: 2.5rem 0 4.25rem;
  }

  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: center;
  }

  .page-products .cat-split {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }

  .page-products .cat-split__side {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-products .cat-index {
    font-size: 3rem;
  }

  .page-products .cat-tabs {
    flex-direction: column;
    align-items: flex-start;
    gap: .5rem;
  }

  .page-products .cat-round__head {
    padding: 1.1rem 1.4rem;
  }

  .page-products .cat-round__body {
    padding: 0 1.4rem 1.3rem;
    max-width: 68ch;
  }

  .page-products .cat-versions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--line-2);
    padding-top: 1.5rem;
  }

  .page-products .cat-ver {
    border: 0;
    border-left: 1px dashed var(--line);
    border-radius: 0;
    background: transparent;
    padding: 0 1.4rem;
  }

  .page-products .cat-ver:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-products .cat-ver::before {
    left: 1.4rem;
    top: 2.2rem;
    bottom: 1.4rem;
  }

  .page-products .cat-ver:first-child::before {
    left: 0;
  }

  .page-products .cat-version-figure {
    margin-top: 2.25rem;
  }
}

@media (min-width: 1100px) {
  .page-products .cat-hero__title {
    font-size: clamp(2.4rem, 4.1vw, 3.75rem);
  }

  .page-products .cat-split {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fold__head::after,
  .page-products .cat-index,
  .page-products .cat-compare__list li,
  .page-products .cat-round {
    transition: none;
  }
}