.page-products {
  --prod-line: rgba(147, 169, 191, 0.2);
  --prod-line-strong: rgba(147, 169, 191, 0.42);
  --prod-glass: rgba(244, 246, 244, 0.06);
  --prod-panel: rgba(8, 37, 28, 0.72);
}

.page-products .products-crumb {
  max-width: 1440px;
  margin: 0 auto;
  padding: 16px var(--pad-x) 0;
}

.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cool-slate);
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--prod-line-strong);
}

.page-products .breadcrumb a {
  color: var(--cool-slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--signal-orange);
}

/* ---------- 首屏 ---------- */

.page-products .products-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 84px) var(--pad-x) clamp(34px, 5vw, 68px);
  background:
    radial-gradient(120% 92% at 6% 0%, rgba(14, 59, 44, 0.95), transparent 64%),
    linear-gradient(158deg, var(--pitch-900) 0%, var(--charcoal-900) 100%);
}

.page-products .products-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(147, 169, 191, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(147, 169, 191, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 76%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-products .products-hero__grid {
  position: relative;
  display: grid;
  gap: 32px;
  align-items: end;
}

.page-products .products-hero__title {
  margin: 14px 0 0;
  max-width: 15ch;
  font-size: clamp(38px, 7.2vw, 92px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-products .products-hero__lead {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--cool-slate);
}

.page-products .products-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .products-hero__stats {
  display: grid;
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .products-hero__stat {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 14px;
  padding: 18px 20px;
  background: var(--prod-panel);
}

.page-products .products-hero__num {
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  color: var(--signal-orange);
  font-variant-numeric: tabular-nums;
}

.page-products .products-hero__label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--cool-slate);
}

/* ---------- 通用章节头 ---------- */

.page-products .products-head {
  max-width: 720px;
  margin-bottom: clamp(26px, 3vw, 40px);
}

.page-products .chapter__title {
  margin: 12px 0 0;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.2;
  font-weight: 800;
  color: var(--paper);
}

.page-products .chapter__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--signal-orange);
}

.page-products .products-head__lead {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--cool-slate);
}

.page-products .chapter {
  padding: clamp(46px, 6vw, 92px) var(--pad-x);
}

.page-products .chapter__title,
.page-products .products-head__lead {
  text-wrap: pretty;
}

/* ---------- 五个栏目 ---------- */

.page-products .products-columns {
  background: var(--pitch-700);
}

.page-products .products-columns__media {
  margin-bottom: 28px;
  border: 1px solid var(--prod-line);
  background: var(--pitch-900);
}

.page-products .products-columns__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-products .products-columns__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .products-col {
  background: var(--pitch-700);
  padding: 20px 18px 24px;
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .products-col:hover {
  border-left-color: var(--signal-orange);
  background: rgba(244, 246, 244, 0.04);
}

.page-products .products-col__code {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal-orange);
}

.page-products .products-col__name {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .products-col__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool-slate);
}

.page-products .products-col__when {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--prod-line);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--prod-line-strong);
}

/* ---------- 并排对照 ---------- */

.page-products .products-bench {
  background: var(--charcoal-900);
}

.page-products .products-bench__split {
  display: grid;
  gap: 1px;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .products-bench__pane {
  min-width: 0;
  padding: 22px 18px 26px;
  background: var(--pitch-900);
}

.page-products .products-bench__pane--warn {
  border-top: 3px solid var(--warning-yellow);
}

.page-products .products-bench__pane--slate {
  border-top: 3px solid var(--cool-slate);
}

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

.page-products .products-bench__pane-code {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--paper);
}

.page-products .products-table {
  margin-top: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .products-table .data-table {
  width: 100%;
  min-width: 340px;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.page-products .products-table caption {
  caption-side: top;
  padding: 0 0 10px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cool-slate);
}

.page-products .products-table th,
.page-products .products-table td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--prod-line);
  white-space: nowrap;
  color: var(--cool-slate);
}

.page-products .products-table thead th {
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--paper);
  background: rgba(23, 35, 63, 0.6);
  border-bottom-color: var(--prod-line-strong);
}

.page-products .products-table tbody tr:nth-child(even) {
  background: rgba(147, 169, 191, 0.05);
}

.page-products .products-table tbody th {
  font-weight: 600;
  color: var(--paper);
}

.page-products .products-table th:first-child,
.page-products .products-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--pitch-900);
  box-shadow: 1px 0 0 var(--prod-line);
}

.page-products .products-table thead th:first-child {
  background: #101a2c;
}

.page-products .products-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  line-height: 1.7;
  color: var(--cool-slate);
}

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

.page-products .products-legend .mono {
  color: var(--paper);
}

.page-products .products-bench__media {
  margin-top: 26px;
  border: 1px solid var(--prod-line);
}

.page-products .products-bench__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 大屏对照 ---------- */

.page-products .products-wall {
  background: linear-gradient(180deg, var(--charcoal-900) 0%, var(--indigo-800) 130%);
}

.page-products .products-wall__grid {
  display: grid;
  gap: 32px;
}

.page-products .products-wall__density {
  margin: 26px 0 0;
  padding: 18px;
  border: 1px solid var(--prod-line);
  background: var(--prod-glass);
}

.page-products .products-wall__density-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cool-slate);
}

.page-products .products-wall__density .density {
  display: inline-flex;
  gap: 1px;
  border: 1px solid var(--prod-line-strong);
  background: var(--prod-line);
}

.page-products .products-wall__density .density__btn {
  padding: 9px 18px;
  border: 0;
  background: var(--pitch-900);
  color: var(--cool-slate);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .products-wall__density .density__btn:hover {
  color: var(--paper);
}

.page-products .products-wall__density .density__btn[data-active="true"] {
  background: var(--signal-orange);
  color: var(--charcoal-900);
  font-weight: 700;
}

.page-products .products-wall__density .density__btn:focus-visible {
  outline: 2px solid var(--signal-orange);
  outline-offset: 2px;
}

.page-products .products-wall__density-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cool-slate);
}

.page-products .products-wall__list {
  display: grid;
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background: var(--prod-line);
  border-top: 1px solid var(--prod-line);
  border-bottom: 1px solid var(--prod-line);
}

.page-products .products-wall__list li {
  display: grid;
  grid-template-columns: 46px 1fr;
  align-items: center;
  gap: 14px;
  padding: 13px 14px;
  background: rgba(8, 37, 28, 0.55);
  transition: background var(--dur) var(--ease);
}

.page-products .products-wall__list li:hover {
  background: rgba(255, 107, 26, 0.12);
}

.page-products .products-wall__n {
  font-size: 18px;
  font-weight: 700;
  color: var(--signal-orange);
}

.page-products .products-wall__t {
  font-size: 14px;
  line-height: 1.7;
  color: var(--cool-slate);
}

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

.page-products .products-wall__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

/* ---------- 三层索引 ---------- */

.page-products .products-index {
  background: var(--pitch-900);
}

.page-products .products-index__wrap {
  display: grid;
  gap: 32px;
}

.page-products .products-index__steps {
  display: grid;
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background: var(--prod-line);
  border-left: 2px solid var(--signal-orange);
}

.page-products .products-index__steps li {
  padding: 18px 20px;
  background: var(--pitch-700);
}

.page-products .products-index__n {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--warning-yellow);
}

.page-products .products-index__name {
  margin: 8px 0 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .products-index__steps p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool-slate);
}

.page-products .products-index__media {
  border: 1px solid var(--prod-line);
  background: var(--charcoal-900);
}

.page-products .products-index__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 移动端一致 ---------- */

.page-products .products-mobile {
  background: var(--pitch-700);
}

.page-products .products-mobile__wrap {
  display: grid;
  gap: 32px;
}

.page-products .products-mobile__media {
  border: 1px solid var(--prod-line);
  background: var(--pitch-900);
  order: 2;
}

.page-products .products-mobile__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-products .products-sticky-demo {
  margin: 24px 0 0;
  border: 1px solid var(--prod-line-strong);
  background: var(--pitch-900);
}

.page-products .products-sticky-demo__bar {
  position: sticky;
  top: 0;
  padding: 12px 16px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--charcoal-900);
  background: var(--warning-yellow);
}

.page-products .products-swipe {
  display: flex;
  gap: 1px;
  padding: 1px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--prod-line);
}

.page-products .products-swipe__card {
  flex: 0 0 156px;
  display: grid;
  gap: 8px;
  padding: 16px;
  background: var(--pitch-700);
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-products .products-swipe__card:hover {
  border-bottom-color: var(--signal-orange);
}

.page-products .products-swipe__k {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cool-slate);
}

.page-products .products-swipe__v {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .products-swipe__hint {
  margin: 0;
  padding: 10px 16px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cool-slate);
  border-top: 1px solid var(--prod-line);
}

.page-products .products-mobile__points {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .products-mobile__points li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool-slate);
}

.page-products .products-mobile__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--signal-orange);
}

/* ---------- 更新节奏 ---------- */

.page-products .products-rhythm {
  background: var(--charcoal-900);
}

.page-products .products-timeline {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--prod-line);
  border-left: 2px solid var(--signal-orange);
}

.page-products .products-timeline__item {
  padding: 20px 20px 24px;
  background: var(--pitch-900);
  transition: background var(--dur) var(--ease);
}

.page-products .products-timeline__item:hover {
  background: rgba(23, 35, 63, 0.7);
}

.page-products .products-timeline__t {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--charcoal-900);
  background: var(--warning-yellow);
}

.page-products .products-timeline__h {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .products-timeline__item p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool-slate);
}

/* ---------- 开始使用 ---------- */

.page-products .products-start {
  background: linear-gradient(180deg, var(--charcoal-900), var(--pitch-900));
}

.page-products .products-start__steps {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
}

.page-products .products-start__step {
  padding: 22px 20px 26px;
  background: var(--pitch-700);
  border-top: 2px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-products .products-start__step:hover {
  border-top-color: var(--signal-orange);
}

.page-products .products-start__n {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--signal-orange);
}

.page-products .products-start__h {
  margin: 10px 0 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .products-start__step p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool-slate);
}

.page-products a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--prod-line-strong);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products a:hover,
.page-products a:focus-visible {
  color: var(--signal-orange);
  border-bottom-color: var(--signal-orange);
}

.page-products .btn {
  border-bottom: 1px solid transparent;
}

.page-products .btn--primary {
  color: var(--charcoal-900);
}

.page-products .btn--primary:hover,
.page-products .btn--primary:focus-visible {
  color: var(--charcoal-900);
  border-bottom-color: transparent;
}

.page-products .products-start__foot {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--prod-line);
}

.page-products .products-start__foot-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--cool-slate);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .products-columns__list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-products .products-swipe__card {
    flex: 0 0 176px;
  }
}

@media (min-width: 960px) {
  .page-products .products-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.9fr);
    gap: 48px;
  }

  .page-products .products-hero__stats {
    align-self: end;
  }

  .page-products .products-bench__split {
    grid-template-columns: 5fr 7fr;
  }

  .page-products .products-wall__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
    gap: 40px;
  }

  .page-products .products-index__wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
    gap: 44px;
  }

  .page-products .products-mobile__wrap {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 44px;
  }

  .page-products .products-mobile__media {
    order: 1;
  }

  .page-products .products-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1100px) {
  .page-products .products-columns__list {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .products-col,
  .page-products .products-wall__list li,
  .page-products .products-timeline__item,
  .page-products .products-start__step,
  .page-products .products-swipe__card,
  .page-products .products-wall__density .density__btn,
  .page-products a {
    transition: none;
  }
}