.page-products {
  --prod-band-y: clamp(44px, 8vw, 96px);
  --prod-gap: clamp(20px, 3.4vw, 40px);
  --prod-radius: 28px;
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: clip;
}

.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products .prod-crumb {
  padding-top: clamp(16px, 2.6vw, 28px);
}

.page-products .prod-crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-products .prod-crumb__item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-products .prod-crumb__item:not(:last-child)::after {
  content: "/";
  color: var(--line);
}

.page-products .prod-crumb__link {
  color: var(--xue-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s var(--ease);
}

.page-products .prod-crumb__link:hover {
  border-color: var(--gold);
}

/* ---------- hero ---------- */

.page-products .prod-hero {
  position: relative;
  padding: clamp(26px, 4vw, 48px) 0 clamp(38px, 6vw, 76px);
  background: linear-gradient(158deg, var(--xue-pale) 0%, var(--mist) 48%, var(--canvas) 100%);
  overflow: hidden;
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -46%;
  width: 82%;
  height: 92%;
  background: linear-gradient(136deg, rgba(201, 154, 61, 0.20), rgba(62, 124, 143, 0.14) 62%, rgba(107, 78, 140, 0.10));
  border-radius: 46% 54% 40% 60% / 58% 46% 54% 42%;
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-products .prod-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-products .prod-kicker {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 14px;
  border-radius: var(--pill);
  background: var(--gold-pale);
  color: var(--gold-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-products .prod-kicker--on-dark {
  background: rgba(201, 154, 61, 0.22);
  color: var(--gold-pale);
}

.page-products .prod-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--xue-deep);
  max-width: 20ch;
}

.page-products .prod-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--ink);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .prod-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: var(--pill);
  border: 1.5px solid transparent;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .prod-btn--gold {
  background: var(--gold);
  color: var(--ink);
}

.page-products .prod-btn--gold:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
}

.page-products .prod-btn--ghost {
  background: transparent;
  border-color: var(--xue);
  color: var(--xue-deep);
}

.page-products .prod-btn--ghost:hover {
  background: var(--xue-pale);
  transform: translateY(-2px);
}

.page-products .prod-btn--on-dark {
  border-color: var(--on-dark-line);
  color: var(--on-dark);
}

.page-products .prod-btn--on-dark:hover {
  background: rgba(233, 241, 243, 0.12);
}

.page-products .prod-hero__side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-products .prod-hero__stat {
  padding: 16px 16px 14px;
  border-radius: var(--radius-md);
  background: rgba(252, 251, 248, 0.86);
  border-top: 3px solid var(--gold);
}

.page-products .prod-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--xue-deep);
}

.page-products .prod-hero__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--graphite);
}

/* ---------- bands ---------- */

.page-products .prod-band {
  padding: var(--prod-band-y) 0;
  background: var(--mist);
}

.page-products .prod-band--canvas {
  background: var(--canvas);
}

.page-products .prod-band--pale {
  background: var(--xue-pale);
}

.page-products .prod-band--ink {
  background: var(--xue-deep);
  color: var(--on-dark);
}

.page-products .prod-head {
  max-width: 68ch;
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-products .prod-head__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.26;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--xue-deep);
}

.page-products .prod-head__lede {
  margin: 0;
  color: var(--graphite);
  font-size: 16px;
  line-height: 1.85;
}

/* ---------- figures ---------- */

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

.page-products .prod-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--prod-radius);
  background: var(--xue-pale);
  object-fit: cover;
}

.page-products .prod-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- groups ---------- */

.page-products .prod-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .prod-group {
  padding: 22px 22px 20px;
  border-radius: var(--radius-lg);
  background: var(--mist);
  border-left: 4px solid var(--xue);
}

.page-products .prod-group:nth-child(3n + 2) {
  border-left-color: var(--gold);
}

.page-products .prod-group:nth-child(3n) {
  border-left-color: var(--grape);
}

.page-products .prod-group__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--xue-deep);
}

.page-products .prod-group__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
}

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

.page-products .prod-chip {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--pill);
  background: var(--canvas);
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 500;
  color: var(--xue-deep);
}

.page-products .prod-group__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grape);
}

/* ---------- table ---------- */

.page-products .prod-tablewrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  background: var(--canvas);
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-tablewrap:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.page-products .prod-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.6;
}

.page-products .prod-table__caption {
  padding: 18px 22px 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-products .prod-table th {
  padding: 12px 18px;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--on-dark);
  background: var(--xue-deep);
  white-space: nowrap;
}

.page-products .prod-table td {
  padding: 14px 18px;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.page-products .prod-table tbody tr:nth-child(even) {
  background: var(--mist);
}

.page-products .prod-table tbody tr:hover {
  background: var(--grape-pale);
}

.page-products .prod-table td:first-child {
  font-weight: 600;
  color: var(--xue-deep);
  white-space: nowrap;
}

.page-products .prod-table td:nth-child(3) {
  white-space: nowrap;
  color: var(--graphite);
}

.page-products .tag-mono {
  display: inline-block;
  padding: 4px 12px;
  border: 0;
  border-radius: var(--pill);
  background: var(--grape-pale);
  color: var(--grape);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.08em;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-products .tag-mono:hover {
  background: var(--grape);
  color: var(--canvas);
}

.page-products .tag-mono--gold {
  background: var(--gold);
  color: var(--ink);
}

.page-products .tag-mono--gold:hover {
  background: var(--gold-dark);
  color: var(--ink);
}

.page-products .tag-mono--xue {
  background: var(--xue-pale);
  color: var(--xue-deep);
  cursor: default;
}

.page-products .tag-mono--xue:hover {
  background: var(--xue-pale);
  color: var(--xue-deep);
}

.page-products .tag-mono.is-copied {
  background: var(--gold);
  color: var(--ink);
}

/* ---------- timeline ---------- */

.page-products .prod-timeline {
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 6px 2px 20px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-node {
  flex: 0 0 min(276px, 78vw);
  scroll-snap-align: start;
  position: relative;
  padding: 20px 22px 24px;
  border-radius: var(--radius-lg);
  background: var(--canvas);
  border-top: 4px solid var(--grape);
}

.page-products .prod-node--current {
  border-top-color: var(--gold);
  background: linear-gradient(164deg, #FFFDF5, var(--canvas) 70%);
}

.page-products .prod-node__title {
  margin: 14px 0 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--xue-deep);
}

.page-products .prod-node__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .prod-node__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .prod-node__list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink);
}

.page-products .prod-node__list li:last-child {
  border-bottom: 0;
}

/* ---------- version compare ---------- */

.page-products .prod-compare {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--canvas);
}

.page-products .prod-compare__head,
.page-products .prod-diff__sum {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 20px;
}

.page-products .prod-compare__head {
  background: var(--xue-deep);
  color: var(--on-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-products .prod-compare__old {
  color: var(--on-dark-soft);
}

.page-products .prod-compare__new {
  color: var(--gold-pale);
}

.page-products .prod-diff {
  border-bottom: 1px solid var(--line);
}

.page-products .prod-diff:last-of-type {
  border-bottom: 0;
}

.page-products .prod-diff:hover {
  background: var(--grape-pale);
}

.page-products .prod-diff__sum {
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  align-items: baseline;
}

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

.page-products .prod-diff__sum::after {
  content: "展开说明";
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grape);
}

.page-products .prod-diff[open] .prod-diff__sum::after {
  content: "收起说明";
}

.page-products .prod-diff__dim {
  font-weight: 700;
  color: var(--xue-deep);
}

.page-products .prod-diff__old {
  color: var(--graphite);
}

.page-products .prod-diff__new {
  font-weight: 600;
  color: var(--ink);
}

.page-products .prod-diff__body {
  margin: 0;
  padding: 0 20px 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
  background: var(--cream, var(--canvas));
}

.page-products .prod-compare__note {
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--graphite);
}

.page-products .prod-inline-link {
  color: var(--xue-deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
}

.page-products .prod-inline-link:hover {
  color: var(--grape);
}

/* ---------- legacy ---------- */

.page-products .prod-legacy {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-products .prod-legacy__text p {
  margin: 0 0 16px;
  color: var(--graphite);
  font-size: 16px;
  line-height: 1.85;
}

.page-products .prod-versionlist {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .prod-versionlist__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-versionlist__desc {
  flex: 1 1 220px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

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

/* ---------- paths ---------- */

.page-products .prod-paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .prod-path {
  padding: 24px 24px 26px;
  border-radius: var(--radius-lg);
  background: var(--canvas);
  border-bottom: 3px solid var(--xue-pale);
}

.page-products .prod-path:nth-child(2) {
  border-bottom-color: var(--gold);
}

.page-products .prod-path:nth-child(3) {
  border-bottom-color: var(--grape);
}

.page-products .prod-path__title {
  margin: 14px 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--xue-deep);
}

.page-products .prod-path__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-products .prod-path__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prod-step;
}

.page-products .prod-path__steps li {
  counter-increment: prod-step;
  position: relative;
  padding: 8px 0 8px 34px;
  font-size: 14px;
  color: var(--ink);
  border-top: 1px solid var(--line);
}

.page-products .prod-path__steps li::before {
  content: counter(prod-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--grape);
}

/* ---------- pack ---------- */

.page-products .prod-pack {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-products .prod-pack__title {
  margin: 0 0 16px;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--on-dark);
}

.page-products .prod-pack__lede {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--on-dark-soft);
}

.page-products .prod-pack__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-pack__list li {
  position: relative;
  padding: 10px 0 10px 22px;
  border-top: 1px solid var(--on-dark-line);
  font-size: 15px;
  color: var(--on-dark);
}

.page-products .prod-pack__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
}

.page-products .prod-pack__cta {
  padding: 26px 24px 24px;
  border-radius: var(--radius-lg);
  background: rgba(28, 42, 48, 0.32);
  border: 1px solid var(--on-dark-line);
}

.page-products .prod-pack__cta-text {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--on-dark-soft);
}

.page-products .prod-pack__cta .prod-btn {
  margin: 0 10px 10px 0;
}

.page-products .prod-pack__meta {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(233, 241, 243, 0.62);
}

/* ---------- responsive ---------- */

@media (min-width: 720px) {
  .page-products .prod-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 960px) {
  .page-products .prod-hero__inner {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 60px);
  }

  .page-products .prod-hero__side {
    grid-template-columns: 1fr;
  }

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

  .page-products .prod-compare__head,
  .page-products .prod-diff__sum {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) minmax(0, 1.4fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-products .prod-diff__sum::after {
    grid-column: 1 / -1;
  }

  .page-products .prod-legacy {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

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

  .page-products .prod-pack {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

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

  .page-products .prod-btn:hover {
    transform: none;
  }
}

.page-products {
  --cream: transparent;
}