.page-products {
  --fx-rail-w: 11rem;
  --fx-gap: clamp(1.5rem, 3.5vw, 3rem);
  --fx-soft: rgba(53, 230, 218, 0.14);
}

/* ---------- 面包屑 ---------- */
.page-products .fx-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ls-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ls-slate);
  margin-bottom: 1.5rem;
}

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

.page-products .fx-crumb a:hover,
.page-products .fx-crumb a:focus-visible {
  color: var(--ls-cyan);
  border-bottom-color: var(--ls-cyan);
}

.page-products .fx-crumb__sep {
  color: var(--ls-line-strong);
}

.page-products .fx-crumb__current {
  color: var(--ls-cream);
}

/* ---------- 首屏 ---------- */
.page-products .fx-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2rem, 5vw, 3.5rem) clamp(3rem, 7vw, 5.5rem);
}

.page-products .fx-hero::before {
  content: "";
  position: absolute;
  inset: -25% -12% auto -12%;
  height: 78%;
  background:
    radial-gradient(58% 62% at 16% 0%, rgba(53, 230, 218, 0.16), transparent 68%),
    radial-gradient(46% 54% at 88% 6%, rgba(255, 210, 74, 0.1), transparent 70%),
    radial-gradient(34% 40% at 62% 40%, rgba(228, 87, 127, 0.07), transparent 72%);
  pointer-events: none;
}

.page-products .fx-hero__wrap {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.5rem;
}

.page-products .fx-hero__eyebrow {
  margin: 0;
}

.page-products .fx-hero__title {
  margin: 0;
  font-size: clamp(2.125rem, 7vw, 5.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ls-cream);
  max-width: 18ch;
}

.page-products .fx-hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-products .fx-hero__figure {
  position: relative;
  border-radius: var(--ls-r-lg);
  overflow: hidden;
  border: 1px solid var(--ls-line);
  background: linear-gradient(135deg, var(--ls-track), rgba(5, 7, 14, 0.9));
}

.page-products .fx-hero__figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ls-cyan), var(--ls-volt) 55%, transparent);
}

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

.page-products .fx-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--ls-line);
  border: 1px solid var(--ls-line);
  border-radius: var(--ls-r-md);
  overflow: hidden;
}

.page-products .fx-stat {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.35rem;
  padding: 1rem 1.15rem 1.15rem;
  background: var(--ls-track);
}

.page-products .fx-stat__label {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--ls-slate);
}

.page-products .fx-stat__num {
  margin: 0;
  font-family: var(--ls-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3.4vw, 2.125rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ls-volt);
}

.page-products .fx-stat__unit {
  margin-left: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ls-slate);
}

/* ---------- 轨道 + 正文 ---------- */
.page-products .fx-shell {
  display: grid;
  gap: var(--fx-gap);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.page-products .fx-rail__caption {
  margin: 0 0 0.75rem;
}

.page-products .fx-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.75rem;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-products .fx-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0 1rem;
  border-radius: var(--ls-pill);
  border: 1px solid var(--ls-line);
  background: var(--ls-track);
  color: var(--ls-cream);
  font-size: 0.875rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--ls-dur) var(--ls-ease),
              color var(--ls-dur) var(--ls-ease),
              transform var(--ls-dur) var(--ls-ease);
}

.page-products .fx-rail__idx {
  font-size: 0.75rem;
  color: var(--ls-cyan);
}

.page-products .fx-rail__link:hover,
.page-products .fx-rail__link:focus-visible {
  border-color: var(--ls-cyan);
  transform: translateY(-2px);
}

.page-products .fx-body {
  min-width: 0;
  display: grid;
  gap: clamp(0.5rem, 1.5vw, 1.25rem);
}

/* ---------- 模块通用 ---------- */
.page-products .fx-mod {
  min-width: 0;
}

.page-products .fx-mod__head {
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-products .fx-mod__title {
  margin: 0.75rem 0 0;
  font-size: clamp(1.625rem, 3.6vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--ls-cream);
}

.page-products .fx-mod__lede {
  margin: 1rem 0 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-products .fx-sub {
  margin: 1.75rem 0 0.75rem;
  font-size: 1.125rem;
  line-height: 1.3;
  font-weight: 700;
  color: var(--ls-cream);
}

.page-products .fx-body__p {
  margin: 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ls-slate);
}

/* ---------- 卡片 ---------- */
.page-products .fx-cards {
  display: grid;
  gap: 1rem;
}

.page-products .fx-card {
  position: relative;
  padding: 1.5rem 1.35rem 1.4rem;
  border-radius: var(--ls-r-md);
  border: 1px solid var(--ls-line);
  background: linear-gradient(160deg, var(--ls-track), rgba(5, 7, 14, 0.86));
  transition: transform var(--ls-dur) var(--ls-ease),
              border-color var(--ls-dur) var(--ls-ease),
              box-shadow var(--ls-dur) var(--ls-ease);
}

.page-products .fx-card:hover,
.page-products .fx-card:focus-within {
  transform: translateY(-3px);
  border-color: rgba(53, 230, 218, 0.5);
  box-shadow: 0 18px 40px -28px rgba(53, 230, 218, 0.6);
}

.page-products .fx-card__title {
  margin: 1rem 0 0.5rem;
  font-size: 1.0625rem;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ls-cream);
}

.page-products .fx-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ls-slate);
}

.page-products .fx-card__meta {
  margin: 1.1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--ls-line);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--ls-slate);
}

.page-products .fx-card__meta .ls-num {
  color: var(--ls-volt);
  font-size: 0.9375rem;
}

.page-products .fx-card--ratio {
  background:
    linear-gradient(160deg, rgba(53, 230, 218, 0.08), transparent 55%),
    var(--ls-track);
}

.page-products .fx-ratio__dim {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--ls-cyan);
}

/* ---------- 面板与提示 ---------- */
.page-products .fx-note {
  margin-top: 1.5rem;
  padding: 1.35rem 1.4rem;
  display: grid;
  gap: 0.65rem;
}

.page-products .fx-note__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0;
}

.page-products .fx-note__key {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ls-slate);
}

.page-products .fx-note__val {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ls-volt);
}

.page-products .fx-note__val--text {
  font-family: var(--ls-font-sans);
  color: var(--ls-cyan);
}

.page-products .fx-note__desc {
  margin: 0.25rem 0 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ls-slate);
}

.page-products .fx-note__desc a,
.page-products .fx-linkrow a {
  color: var(--ls-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 218, 0.4);
  transition: border-color var(--ls-dur) var(--ls-ease);
}

.page-products .fx-note__desc a:hover,
.page-products .fx-linkrow a:hover,
.page-products .fx-note__desc a:focus-visible,
.page-products .fx-linkrow a:focus-visible {
  border-bottom-color: var(--ls-cyan);
}

.page-products .fx-linkrow {
  margin: 1.5rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ls-slate);
}

/* ---------- 图文分栏 ---------- */
.page-products .fx-split {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

.page-products .fx-split__text {
  min-width: 0;
}

.page-products .fx-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-products .fx-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ls-slate);
}

.page-products .fx-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 0.6rem;
  height: 2px;
  border-radius: 2px;
  background: var(--ls-cyan);
}

.page-products .fx-list__tag {
  display: inline-block;
  margin-right: 0.5rem;
  padding: 0.1rem 0.55rem;
  border-radius: var(--ls-pill);
  border: 1px solid rgba(53, 230, 218, 0.42);
  color: var(--ls-cyan);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  vertical-align: 0.08em;
}

.page-products .fx-figure {
  margin: 0;
  min-width: 0;
}

.page-products .fx-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--ls-r-md);
  border: 1px solid var(--ls-line);
  background: linear-gradient(135deg, var(--ls-track), rgba(5, 7, 14, 0.9));
  object-fit: cover;
}

.page-products .fx-figure--square img {
  aspect-ratio: 1 / 1;
}

.page-products .fx-figure--tall img {
  aspect-ratio: 3 / 4;
}

.page-products .fx-figure--wide img {
  aspect-ratio: 16 / 9;
}

.page-products .fx-figure__cap {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--ls-slate);
}

/* ---------- 对照区 ---------- */
.page-products .fx-compare {
  margin-top: 1.5rem;
  border-radius: var(--ls-r-lg);
  border: 1px solid var(--ls-line);
  background:
    linear-gradient(135deg, rgba(196, 105, 63, 0.1), transparent 42%),
    linear-gradient(315deg, rgba(53, 230, 218, 0.1), transparent 46%),
    var(--ls-track);
  overflow: hidden;
}

.page-products .fx-compare__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .fx-table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.page-products .fx-table__caption {
  padding: 1.15rem 1.35rem 0.5rem;
  text-align: left;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ls-slate);
}

.page-products .fx-table th,
.page-products .fx-table td {
  padding: 0.85rem 1.35rem;
  text-align: left;
  border-bottom: 1px solid var(--ls-line);
}

.page-products .fx-table thead th {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--ls-slate);
  border-bottom-color: var(--ls-line-strong);
}

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

.page-products .fx-table tbody tr:last-child th,
.page-products .fx-table tbody tr:last-child td {
  border-bottom: none;
}

.page-products .fx-table__prev {
  color: var(--ls-clay);
}

.page-products .fx-table__now {
  color: var(--ls-cyan);
  font-weight: 700;
}

.page-products .fx-table__up {
  color: var(--ls-volt);
}

.page-products .fx-table__down {
  color: var(--ls-clay);
}

.page-products .fx-compare__note {
  margin: 0;
  padding: 1rem 1.35rem 1.35rem;
  max-width: 66ch;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--ls-slate);
}

/* ---------- 步骤 ---------- */
.page-products .fx-steps {
  list-style: none;
  counter-reset: fx-step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-products .fx-step {
  position: relative;
  padding: 1.35rem 1.25rem 1.25rem 4.5rem;
  border-radius: var(--ls-r-md);
  border: 1px solid var(--ls-line);
  background: var(--ls-track);
  transition: border-color var(--ls-dur) var(--ls-ease),
              transform var(--ls-dur) var(--ls-ease);
}

.page-products .fx-step:hover,
.page-products .fx-step:focus-within {
  border-color: rgba(53, 230, 218, 0.5);
  transform: translateX(3px);
}

.page-products .fx-step::before {
  counter-increment: fx-step;
  content: "0" counter(fx-step);
  position: absolute;
  left: 1.25rem;
  top: 1.4rem;
  font-family: var(--ls-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ls-cyan);
}

.page-products .fx-step::after {
  content: "";
  position: absolute;
  left: 1.25rem;
  top: 3.1rem;
  bottom: 1.35rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(53, 230, 218, 0.5), transparent);
}

.page-products .fx-step__title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  line-height: 1.4;
  font-weight: 700;
  color: var(--ls-cream);
}

.page-products .fx-step__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ls-slate);
}

.page-products .fx-step__go {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
}

.page-products .fx-step__go a {
  color: var(--ls-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(53, 230, 218, 0.45);
}

.page-products .fx-step__go a:hover,
.page-products .fx-step__go a:focus-visible {
  border-bottom-style: solid;
}

/* ---------- 折叠细节 ---------- */
.page-products .fx-details {
  display: grid;
  gap: 0.75rem;
}

.page-products .fx-details details {
  border-radius: var(--ls-r-md);
  border: 1px solid var(--ls-line);
  background: var(--ls-track);
  padding: 0 1.25rem;
  transition: border-color var(--ls-dur) var(--ls-ease);
}

.page-products .fx-details details[open],
.page-products .fx-details details:hover {
  border-color: rgba(53, 230, 218, 0.42);
}

.page-products .fx-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  padding: 1rem 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ls-cream);
}

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

.page-products .fx-details summary::after {
  content: "+";
  flex: none;
  font-family: var(--ls-font-mono);
  font-size: 1.125rem;
  color: var(--ls-cyan);
  transition: transform var(--ls-dur) var(--ls-ease);
}

.page-products .fx-details details[open] summary::after {
  content: "−";
}

.page-products .fx-details__body {
  padding: 0 0 1.15rem;
}

.page-products .fx-details__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ls-slate);
}

.page-products .fx-details__body a {
  color: var(--ls-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 218, 0.4);
}

/* ---------- 尾部 ---------- */
.page-products .fx-tail {
  position: relative;
  margin-top: clamp(1rem, 3vw, 2rem);
  padding: clamp(2rem, 5vw, 3.25rem) clamp(1.35rem, 4vw, 3rem);
  border-radius: var(--ls-r-lg);
  border: 1px solid var(--ls-line);
  background:
    radial-gradient(70% 120% at 8% 0%, rgba(53, 230, 218, 0.16), transparent 62%),
    radial-gradient(60% 110% at 96% 100%, rgba(255, 210, 74, 0.12), transparent 64%),
    var(--ls-track);
  overflow: hidden;
}

.page-products .fx-tail::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ls-cyan), var(--ls-volt) 58%, transparent);
}

.page-products .fx-tail__title {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--ls-cream);
  max-width: 22ch;
}

.page-products .fx-tail__text {
  margin: 1rem 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-products .fx-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* ---------- 焦点可见性 ---------- */
.page-products a:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--ls-cyan);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .fx-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .fx-cards--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-products .fx-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-products .fx-split--reverse {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  }

  .page-products .fx-split--reverse .fx-figure {
    order: -1;
  }
}

@media (min-width: 1024px) {
  .page-products .fx-rail {
    position: sticky;
    top: 5.5rem;
  }

  .page-products .fx-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .fx-rail__link {
    width: 100%;
    justify-content: flex-start;
    padding: 0 0.9rem;
    border-color: transparent;
    background: transparent;
    font-size: 0.9375rem;
  }

  .page-products .fx-rail__link:hover,
  .page-products .fx-rail__link:focus-visible {
    border-color: rgba(53, 230, 218, 0.4);
    background: var(--ls-track);
  }

  .page-products .fx-shell {
    grid-template-columns: var(--fx-rail-w) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-products .fx-hero__wrap {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    grid-template-areas:
      "crumb crumb"
      "eyebrow eyebrow"
      "title figure"
      "lede figure"
      "stats stats";
    column-gap: clamp(2rem, 4vw, 3.5rem);
    row-gap: 1.25rem;
    align-items: start;
  }

  .page-products .fx-crumb {
    grid-area: crumb;
    margin-bottom: 0.5rem;
  }

  .page-products .fx-hero__eyebrow {
    grid-area: eyebrow;
  }

  .page-products .fx-hero__title {
    grid-area: title;
  }

  .page-products .fx-hero__lede {
    grid-area: lede;
    align-self: start;
  }

  .page-products .fx-hero__figure {
    grid-area: figure;
    align-self: stretch;
  }

  .page-products .fx-hero__img {
    height: 100%;
  }

  .page-products .fx-hero__stats {
    grid-area: stats;
    margin-top: 1.25rem;
  }
}

@media (min-width: 1280px) {
  .page-products {
    --fx-rail-w: 12.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fx-card,
  .page-products .fx-step,
  .page-products .fx-rail__link {
    transition: none;
  }

  .page-products .fx-card:hover,
  .page-products .fx-card:focus-within,
  .page-products .fx-step:hover,
  .page-products .fx-step:focus-within,
  .page-products .fx-rail__link:hover,
  .page-products .fx-rail__link:focus-visible {
    transform: none;
  }
}