.page-products {
  --p-pad: clamp(18px, 2.6vw, 28px);
  --p-title-size: clamp(34px, 6.4vw, 66px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-products .p-head {
  padding-top: clamp(22px, 5vw, 54px);
}

.page-products .p-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lake-soft);
}

.page-products .p-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--p-title-size);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .lede {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--text);
}

.page-products .lede--sub {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  border-left: 2px solid var(--lake);
  padding-left: 14px;
}

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

.page-products .lead-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1px;
  margin-top: clamp(26px, 4vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.page-products .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink-2);
}

.page-products .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 28px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-products .stat-label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
}

.page-products .hero-figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
}

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

.page-products .hero-figure img {
  aspect-ratio: 8 / 3;
}

.page-products .figure-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .p-index {
  margin-top: clamp(24px, 4vw, 42px);
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .p-index .index-link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-products .p-index .index-link:hover,
.page-products .p-index .index-link:focus-visible {
  color: var(--paper);
  border-color: var(--lake);
  background: rgba(30, 127, 194, 0.16);
}

.page-products .p-index .index-link[data-active] {
  color: var(--paper);
  border-color: var(--lake);
  background: rgba(30, 127, 194, 0.24);
}

/* 归档筛选 */
.page-products .archive-filter {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .arch-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .filter-bar {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .filter-chip {
  flex: 0 0 auto;
  scroll-snap-align: start;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-2);
  color: var(--mist);
  font-size: 14px;
  cursor: pointer;
  user-select: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-products .filter-chip:hover {
  color: var(--paper);
  border-color: var(--lake-soft);
}

.page-products #arch-all:checked ~ .filter-bar .filter-chip[for="arch-all"],
.page-products #arch-fav:checked ~ .filter-bar .filter-chip[for="arch-fav"],
.page-products #arch-alt:checked ~ .filter-bar .filter-chip[for="arch-alt"],
.page-products #arch-ver:checked ~ .filter-bar .filter-chip[for="arch-ver"] {
  color: var(--paper);
  border-color: var(--lake);
  background: rgba(30, 127, 194, 0.22);
}

.page-products #arch-all:focus-visible ~ .filter-bar .filter-chip[for="arch-all"],
.page-products #arch-fav:focus-visible ~ .filter-bar .filter-chip[for="arch-fav"],
.page-products #arch-alt:focus-visible ~ .filter-bar .filter-chip[for="arch-alt"],
.page-products #arch-ver:focus-visible ~ .filter-bar .filter-chip[for="arch-ver"] {
  outline: 2px solid var(--sunset);
  outline-offset: 2px;
}

.page-products #arch-fav:checked ~ .archive-groups .arch-card:not(.is-fav),
.page-products #arch-alt:checked ~ .archive-groups .arch-card:not(.is-alt),
.page-products #arch-ver:checked ~ .archive-groups .arch-card:not(.is-ver) {
  display: none;
}

.page-products .archive-groups {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .arch-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: var(--p-pad);
  background: linear-gradient(158deg, var(--ink-2), var(--ink-3));
}

.page-products .arch-card.is-ver {
  background: linear-gradient(120deg, var(--ink-2), rgba(30, 127, 194, 0.14));
}

.page-products .card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .card-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .card-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-products .arch-list--row {
  grid-template-columns: 1fr;
}

.page-products .arch-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  align-items: baseline;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-3);
}

.page-products .arch-item-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--lake-soft);
}

.page-products .arch-item-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-products .arch-item-desc {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* 对照表 */
.page-products .compare-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--ink-2);
}

.page-products .compare-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .compare-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 10px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-products .compare-table th,
.page-products .compare-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
  color: var(--text);
}

.page-products .compare-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
  white-space: nowrap;
}

.page-products .compare-table tbody th[scope="row"] {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--ink-2);
  color: var(--paper);
  white-space: nowrap;
}

.page-products .compare-table tbody tr:hover th[scope="row"],
.page-products .compare-table tbody tr:hover td {
  background: rgba(30, 127, 194, 0.12);
}

.page-products .diff-y {
  color: var(--v-yellow);
}

.page-products .diff-r {
  color: var(--v-red);
}

.page-products .field-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}

.page-products .field-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 12px 16px;
  background: var(--ink-2);
}

.page-products .field-key {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--lake-soft);
}

.page-products .field-val {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* 版本号条带 */
.page-products .v-rail {
  display: flex;
  gap: 16px;
  margin-top: clamp(18px, 3vw, 28px);
  padding: 6px 2px 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-products .v-card {
  --v-accent: var(--lake);
  flex: 0 0 clamp(200px, 62vw, 268px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 250px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(160deg, var(--ink-2), var(--ink-3));
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .v-card:hover {
  transform: translateY(-2px);
  border-color: var(--lake-soft);
}

.page-products .v-card:nth-child(3n + 2) {
  --v-accent: var(--v-yellow);
}

.page-products .v-card:nth-child(3n) {
  --v-accent: var(--sunset);
}

.page-products .v-num {
  margin: 0;
  font-size: 38px;
  line-height: 1;
  font-weight: 700;
  color: var(--paper);
}

.page-products .v-num::after {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  margin-top: 12px;
  background: var(--v-accent);
  border-radius: 2px;
}

.page-products .v-rev {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--v-accent);
}

.page-products .v-desc {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .v-copy {
  align-self: flex-start;
}

.page-products .rail-hint {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* 层级路径对比 */
.page-products .path-compare {
  display: grid;
  gap: 16px;
}

.page-products .path-col {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--ink-2);
}

.page-products .path-col--after {
  border-color: var(--lake);
  background: linear-gradient(140deg, var(--ink-2), rgba(30, 127, 194, 0.16));
}

.page-products .path-col-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .path-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-products .path-node {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--ink-3);
  font-size: 13px;
  color: var(--mist);
}

.page-products .path-node--end {
  border-color: var(--lake);
  background: rgba(30, 127, 194, 0.22);
  color: var(--paper);
}

.page-products .path-node--warn {
  border-color: var(--v-red);
  color: var(--v-red);
}

.page-products .path-arrow {
  color: var(--line);
  font-size: 13px;
}

.page-products .path-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* 移动端章节 */
.page-products .sub-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .body-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-products .check-list li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--lake);
}

.page-products .check-list--tight {
  margin-top: 12px;
  gap: 8px;
}

.page-products .check-list--tight li::before {
  background: var(--v-green);
}

.page-products .mobile-row {
  margin-top: clamp(28px, 4vw, 44px);
}

/* 收藏步骤与折叠 */
.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: step;
}

.page-products .step {
  position: relative;
  padding-left: 56px;
}

.page-products .step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  left: 0;
  top: 0;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--sunset);
}

.page-products .step-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .step-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .fold {
  margin-bottom: 14px;
  padding: 2px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--ink-2);
}

.page-products .fold summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 10px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

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

.page-products .fold summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--lake-soft);
}

.page-products .fold[open] summary::after {
  content: "－";
  color: var(--sunset);
}

.page-products .fold-body {
  padding-bottom: 16px;
}

.page-products .fold-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* 收尾 */
.page-products .cta-panel {
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid var(--lake);
  border-radius: var(--radius-card);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(255, 122, 47, 0.16), transparent 58%),
    linear-gradient(140deg, rgba(30, 127, 194, 0.2), var(--ink-2));
}

.page-products .cta-panel h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--paper);
}

.page-products .cta-panel p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-products .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .sub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-products .sub-link {
  font-size: 13px;
  color: var(--lake-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-products .sub-link:hover,
.page-products .sub-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--sunset);
}

.page-products a.btn:focus-visible,
.page-products button.btn:focus-visible {
  outline: 2px solid var(--sunset);
  outline-offset: 2px;
}

@media (min-width: 860px) {
  .page-products .p-head {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: 48px;
    align-items: start;
  }

  .page-products .p-kicker,
  .page-products .p-title,
  .page-products .lede,
  .page-products .lede--sub {
    grid-column: 1;
  }

  .page-products .lead-actions,
  .page-products .lead-stats {
    grid-column: 2;
  }

  .page-products .lead-actions {
    margin-top: clamp(34px, 6vw, 62px);
  }

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

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

  .page-products .path-compare {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .page-products .compare-table {
    min-width: 100%;
  }

  .page-products .field-item {
    grid-template-columns: minmax(88px, auto) 1fr;
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 1180px) {
  .page-products .p-title {
    font-size: 66px;
  }

  .page-products .v-card {
    flex-basis: 252px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .v-card,
  .page-products .filter-chip,
  .page-products .p-index .index-link,
  .page-products .sub-link {
    transition: none;
  }

  .page-products .v-card:hover {
    transform: none;
  }
}