.page-products {
  --prod-rail: 264px;
  --prod-tint: rgba(138, 212, 227, 0.045);
}

/* ---------- 面包屑 ---------- */
.page-products .prod-crumb {
  padding-top: clamp(18px, 4vw, 42px);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding-bottom: clamp(34px, 6vw, 70px);
}

.page-products .prod-hero__inner {
  padding-block: clamp(22px, 5vw, 52px) clamp(20px, 3vw, 34px);
}

.page-products .prod-hero h1 {
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--paper-100);
  margin: 14px 0 20px;
  max-width: 17ch;
}

.page-products .prod-hero .lede {
  max-width: 62ch;
  margin: 0;
  color: var(--text-dim);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
}

.page-products .prod-hero__keys {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  grid-template-columns: 1fr;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .prod-hero__keys a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 16px;
  background: var(--ink-800);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-products .prod-hero__keys a:hover,
.page-products .prod-hero__keys a:focus-visible {
  background: var(--moss-600);
  color: var(--paper-100);
}

.page-products .prod-hero__keys a:focus-visible {
  outline: 2px solid var(--ice-300);
  outline-offset: -2px;
}

.page-products .prod-key__n {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ice-300);
}

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

/* ---------- 算法区布局 ---------- */
.page-products .algo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-products .algo-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--stone-400);
}

.page-products .algo-rail__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .algo-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid var(--line-2);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-products .algo-rail__link:hover,
.page-products .algo-rail__link:focus-visible {
  border-left-color: var(--ice-300);
  background: rgba(46, 143, 168, 0.14);
  color: var(--paper-100);
}

.page-products .algo-rail__n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ice-600);
  min-width: 48px;
}

.page-products .algo-rail__media {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 算法分组 ---------- */
.page-products .algo-group {
  border-top: 1px solid var(--line-2);
  padding-top: clamp(18px, 2.6vw, 28px);
  margin-bottom: clamp(30px, 5vw, 52px);
  scroll-margin-top: 96px;
}

.page-products .algo-group:last-child {
  margin-bottom: 0;
}

.page-products .algo-group__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.page-products .algo-group__range {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-900);
  background: var(--ice-600);
  padding: 4px 10px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-products .algo-group__head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.2;
  color: var(--paper-100);
}

.page-products .algo-group__scope {
  margin: 0 0 18px;
  max-width: 66ch;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .algo-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-products .algo-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 6px;
  align-items: start;
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
}

.page-products .algo-row:last-child {
  border-bottom: 0;
}

.page-products .algo-row:nth-child(odd) {
  background: var(--prod-tint);
}

.page-products .algo-row__no {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--amber-400);
  line-height: 1.5;
}

.page-products .algo-row__name {
  margin: 0 0 3px;
  color: var(--paper-100);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
}

.page-products .algo-row__desc {
  margin: 0;
  color: var(--text-dim);
  font-size: 13.5px;
  line-height: 1.7;
}

.page-products .algo-row__meta {
  grid-column: 2;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--ice-300);
  border: 1px solid var(--line-2);
  padding: 2px 7px;
  white-space: nowrap;
}

/* ---------- 房间档位 ---------- */
.page-products .room-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .room-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(155deg, rgba(30, 83, 72, 0.92), rgba(11, 27, 34, 0.96));
  border: 1px solid var(--line-2);
}

.page-products .room-card__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-products .room-card__badge {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--pine-900);
  background: var(--ice-300);
  padding: 3px 8px;
}

.page-products .room-card__head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: 22px;
  color: var(--paper-100);
}

.page-products .room-card__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-dim);
}

.page-products .room-card__val .num {
  font-size: 26px;
}

.page-products .room-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .room-card__list li {
  position: relative;
  padding-left: 15px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .room-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--ice-300);
  transform: rotate(45deg);
}

.page-products .room-card__fit {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .room-media {
  margin: clamp(26px, 4vw, 44px) 0 0;
  max-width: 430px;
}

/* ---------- 换桌规则 ---------- */
.page-products .swap-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .swap-card {
  padding: clamp(18px, 2.2vw, 24px);
  background: var(--ink-800);
  border: 1px solid var(--line-2);
}

.page-products .swap-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-products .swap-card__head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: 20px;
  color: var(--paper-100);
}

.page-products .swap-card__n {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber-400);
}

.page-products .swap-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-products .swap-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .swap-item__no {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--ice-300);
  border-left: 2px solid var(--ice-600);
  padding-left: 6px;
}

.page-products .swap-media {
  margin: clamp(26px, 4vw, 46px) 0 0;
}

.page-products .prod-media--2x1 {
  aspect-ratio: 2 / 1;
}

/* ---------- 残局 ---------- */
.page-products .end-strip {
  margin-top: clamp(24px, 4vw, 40px);
  padding-bottom: 8px;
}

.page-products .end-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 246px;
  max-width: 290px;
  padding: clamp(18px, 2.4vw, 24px);
  background: linear-gradient(150deg, rgba(18, 58, 51, 0.95), rgba(11, 27, 34, 0.95));
  border: 1px solid var(--line-2);
}

.page-products .end-card__stage {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--ice-300);
}

.page-products .end-card__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-dim);
}

.page-products .end-card__count .num {
  font-size: 40px;
  line-height: 1.1;
  margin-right: 4px;
}

.page-products .end-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .end-filter {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-800);
}

.page-products .band--paper .end-filter {
  color: var(--ink-900);
}

.page-products .end-media {
  margin: clamp(26px, 4vw, 42px) 0 0;
  max-width: 460px;
}

/* ---------- 版本与后续 ---------- */
.page-products .ver-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .ver-item {
  padding: clamp(16px, 2vw, 22px);
  background: var(--ink-800);
  border: 1px solid var(--line-2);
}

.page-products .ver-item__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--stone-400);
}

.page-products .ver-item__v {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.15;
  color: var(--amber-400);
}

.page-products .ver-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .prod-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-products .next-card {
  display: block;
  padding: clamp(18px, 2.2vw, 24px);
  background: var(--pine-700);
  border: 1px solid var(--line-2);
  text-decoration: none;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-products .next-card:hover,
.page-products .next-card:focus-visible {
  background: var(--moss-600);
  transform: translateY(-2px);
}

.page-products .next-card__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--ice-300);
}

.page-products .next-card__t {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: 21px;
  line-height: 1.3;
  color: var(--paper-100);
}

.page-products .next-card__d {
  display: block;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

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

  .page-products .algo-row {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    column-gap: 14px;
    row-gap: 0;
  }

  .page-products .algo-row__meta {
    grid-column: auto;
    justify-self: end;
    margin-top: 2px;
  }

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

@media (min-width: 760px) {
  .page-products .room-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-products .prod-hero__keys {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-products .algo-layout {
    grid-template-columns: var(--prod-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .algo-rail {
    position: sticky;
    top: 96px;
  }
}

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

  .page-products .next-card:hover,
  .page-products .next-card:focus-visible {
    transform: none;
  }
}
<<<END>>>