.page-products {
  --prod-gap: 14px;
  --prod-line: 1px solid var(--ink-16);
  overflow-x: hidden;
}

.page-products .prod-crumb-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 18px;
  padding-top: 20px;
}

.page-products .prod-coords {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--ink-45);
}

/* 首屏 */
.page-products .prod-hero {
  padding-block: clamp(26px, 4.5vw, 46px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--ink-16);
}

.page-products .prod-hero h1 {
  margin: 8px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18ch;
}

.page-products .prod-hero .lead {
  max-width: 64ch;
  color: var(--ink-70);
}

.page-products .prod-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-products .prod-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  background: var(--ink-16);
  border-top: 2px solid var(--ink);
}

.page-products .prod-stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px 18px;
  background: var(--ivory);
}

.page-products .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 600;
  color: var(--jade);
  letter-spacing: -0.01em;
}

.page-products .stat-label {
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--ink-70);
}

/* Bento 产品矩阵 */
.page-products .prod-bento {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--prod-gap);
}

.page-products .prod-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  background: var(--tile);
  border: var(--prod-line);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .prod-tile::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 34px;
  height: 3px;
  background: var(--gold);
}

.page-products .prod-tile:hover,
.page-products .prod-tile:focus-within {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(21, 25, 21, 0.12);
}

.page-products .tile-index {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .prod-tile .tile-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-products .prod-tile p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-products .prod-tile-link {
  margin-top: auto;
  padding-top: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
}

.page-products .prod-tile-link:hover {
  border-bottom-color: var(--jade);
}

.page-products .tile--jade {
  background: var(--jade);
  border-color: var(--jade);
}

.page-products .tile--jade::before {
  background: var(--gold);
}

.page-products .tile--jade .tile-title,
.page-products .tile--jade .prod-tile-link {
  color: var(--tile);
}

.page-products .tile--jade p {
  color: rgba(255, 253, 247, 0.85);
}

.page-products .tile--ink {
  background: var(--ink);
  border-color: var(--ink);
}

.page-products .tile--ink::before {
  background: var(--cinnabar);
}

.page-products .tile--ink .tile-title,
.page-products .tile--ink .prod-tile-link {
  color: var(--ivory);
}

.page-products .tile--ink p {
  color: rgba(246, 241, 227, 0.72);
}

/* 规则库 */
.page-products .prod-rules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-products .prod-rule-group {
  margin-top: 26px;
}

.page-products .prod-rule-group h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--jade);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink-16);
}

.page-products .rule-fold {
  border-bottom: 1px solid var(--ink-16);
  background: var(--tile);
}

.page-products .rule-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 12px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
}

.page-products .rule-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .rule-fold summary::after {
  content: "＋";
  flex: none;
  font-family: var(--font-mono);
  color: var(--cinnabar);
}

.page-products .rule-fold[open] summary::after {
  content: "－";
}

.page-products .rule-fold[open] summary {
  background: var(--mist);
}

.page-products .rule-fold-body {
  padding: 4px 12px 16px;
}

.page-products .rule-fold-body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-products .prod-note {
  margin: 26px 0 0;
  padding: 14px 16px;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--ink-70);
  background: var(--mist);
  border-left: 3px solid var(--jade);
}

.page-products .prod-rules-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-products .prod-rules-media {
  margin: 0;
}

.page-products .prod-side-card {
  padding: 18px;
  border: var(--prod-line);
  background: var(--tile);
}

.page-products .prod-checklist {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-products .prod-checklist li {
  position: relative;
  padding-left: 18px;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--ink-70);
}

.page-products .prod-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--jade);
}

/* 模拟器深色带 */
.page-products .prod-sim {
  background: var(--teal);
  color: var(--ivory);
}

.page-products .prod-sim .eyebrow {
  color: var(--gold);
}

.page-products .prod-sim .section-title {
  color: var(--ivory);
}

.page-products .prod-sim .lead {
  color: var(--paper-70);
  max-width: 66ch;
}

.page-products .prod-sim-media {
  margin: 26px 0 30px;
}

.page-products .prod-tabbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-products .prod-tabbar .tab {
  padding: 9px 16px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--tile);
  border: 1px solid var(--ink-16);
  cursor: pointer;
}

.page-products .prod-tabbar .tab[aria-selected="true"] {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--tile);
}

.page-products .prod-sim .prod-tabbar .tab {
  background: rgba(255, 253, 247, 0.08);
  border-color: rgba(255, 253, 247, 0.28);
  color: var(--paper-70);
}

.page-products .prod-sim .prod-tabbar .tab[aria-selected="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-products .prod-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--ivory);
}

.page-products .prod-panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--paper-70);
}

.page-products .prod-checklist--light li {
  color: rgba(255, 253, 247, 0.82);
}

.page-products .prod-checklist--light li::before {
  background: var(--gold);
}

.page-products .prod-note--light {
  background: rgba(255, 253, 247, 0.08);
  border-left-color: var(--gold);
  color: rgba(255, 253, 247, 0.78);
}

/* 规则专区与段位 */
.page-products .prod-levels-wrap {
  margin-top: 26px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-products .prod-tabbar--paper .tab {
  background: var(--tile);
  border: 1px solid var(--ink-16);
  color: var(--ink-70);
}

.page-products .prod-tabbar--paper .tab[aria-selected="true"] {
  background: var(--jade);
  border-color: var(--jade);
  color: var(--tile);
}

.page-products .prod-panel--paper {
  padding: 20px;
  background: var(--tile);
  border: var(--prod-line);
  border-top: 2px solid var(--jade);
}

.page-products .prod-panel--paper h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink);
}

.page-products .prod-panel--paper p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-products .prod-level-list h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink);
}

.page-products .prod-lvl {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  margin-bottom: 8px;
  background: var(--tile);
  border-left: 3px solid var(--gold);
  border-top: 1px solid var(--ink-16);
}

.page-products .prod-lvl-range {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cinnabar-deep);
  letter-spacing: 0.02em;
}

.page-products .prod-lvl p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-products .prod-level-media {
  margin: 30px 0 0;
}

/* 下载 */
.page-products .prod-dl-media {
  margin: 26px 0 30px;
}

.page-products .prod-dl-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-products .prod-sys-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .prod-sys {
  padding: 18px;
  background: var(--tile);
  border: var(--prod-line);
}

.page-products .prod-sys-tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--tile);
  background: var(--ink);
}

.page-products .prod-sys h3 {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink);
}

.page-products .prod-sys p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-products .prod-sub-title {
  margin: 28px 0 12px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink);
}

.page-products .prod-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--ink-16);
  border-top: 2px solid var(--ink);
}

.page-products .prod-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 12px;
  background: var(--ivory);
}

.page-products .prod-step-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cinnabar);
}

.page-products .prod-steps p {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-products .prod-dl-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-products .prod-checksum {
  padding: 18px;
  background: var(--ink);
  color: var(--mist);
}

.page-products .prod-checksum-title {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-products .prod-checksum code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.9;
  letter-spacing: 0.03em;
  word-break: break-all;
  color: var(--tile);
}

.page-products .prod-checksum p {
  margin: 12px 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--paper-45);
}

.page-products .prod-dl-figure {
  margin: 0;
}

/* 更新节奏 */
.page-products .prod-cadence .section-title {
  color: var(--ivory);
}

.page-products .prod-cadence .eyebrow {
  color: var(--gold);
}

.page-products .prod-cadence .lead {
  color: var(--paper-70);
  max-width: 64ch;
}

.page-products .prod-cadence-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(246, 241, 227, 0.16);
  border-top: 2px solid var(--gold);
}

.page-products .prod-cadence-grid article {
  padding: 22px 18px;
  background: var(--ink);
}

.page-products .prod-cadence-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-products .prod-cadence-grid h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ivory);
}

.page-products .prod-cadence-grid p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.78;
  color: var(--paper-70);
}

.page-products .prod-support {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid rgba(246, 241, 227, 0.16);
}

.page-products .prod-support p {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--paper-70);
}

.page-products .prod-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 场景 */
.page-products .prod-scenes {
  margin-top: 28px;
  gap: 12px;
}

.page-products .prod-scene {
  padding: 20px;
  background: var(--tile);
  border: var(--prod-line);
  border-top: 3px solid var(--jade);
}

.page-products .prod-scene:nth-child(even) {
  border-top-color: var(--cinnabar);
}

.page-products .prod-scene h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--ink);
}

.page-products .prod-scene p {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-products .prod-next {
  margin-top: 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ink-16);
  border-top: 2px solid var(--ink);
}

.page-products .prod-next a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 14px;
  background: var(--ivory);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.page-products .prod-next a:hover {
  color: var(--jade);
}

.page-products .prod-next a span {
  font-family: var(--font-mono);
  color: var(--cinnabar);
}

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

@media (min-width: 680px) {
  .page-products .prod-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

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

@media (min-width: 960px) {
  .page-products .prod-rules {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .prod-rules-side {
    position: sticky;
    top: 92px;
  }

  .page-products .prod-levels-wrap {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .prod-dl-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: 30px;
    align-items: start;
  }

  .page-products .prod-level-media {
    max-width: 640px;
  }
}

@media (min-width: 1024px) {
  .page-products .prod-bento {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-auto-rows: minmax(150px, auto);
  }

  .page-products .prod-bento .tile--wide {
    grid-column: span 2;
  }

  .page-products .prod-bento .tile--feature {
    grid-column: span 2;
    grid-row: span 2;
  }

  .page-products .prod-bento .tile--tall {
    grid-row: span 2;
  }

  .page-products .prod-bento .tile--feature .tile-title {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-tile {
    transition: none;
  }

  .page-products .prod-tile:hover,
  .page-products .prod-tile:focus-within {
    transform: none;
  }
}