.page-products {
  --fx-cut: 14px;
  --fx-sec-pad: 22px;
}

.page-products .fx-hero {
  padding-top: 22px;
}

.page-products .fx-hero .kicker {
  margin: 0 0 10px;
}

.page-products .fx-hero .display {
  margin: 0;
  max-width: 20ch;
}

.page-products .fx-hero .lede {
  margin: 16px 0 0;
  max-width: 60ch;
}

.page-products .fx-hero__band {
  margin: 26px 0 0;
  border: 1px solid var(--line, #24455F);
}

.page-products .fx-hero__band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 双栏骨架 ---------- */

.page-products .fx-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap, 16px);
  margin-top: 34px;
  align-items: start;
}

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

.page-products .fx-rail .kicker {
  margin: 0 0 10px;
}

.page-products .fx-toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line, #24455F);
}

.page-products .fx-toc li {
  min-width: 0;
  border-bottom: 1px solid var(--line, #24455F);
}

.page-products .fx-toc li:nth-child(odd) {
  border-right: 1px solid var(--line, #24455F);
}

.page-products .fx-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 10px;
  font-size: 13px;
  line-height: 1.35;
  color: var(--muted, #9BB1C0);
  text-decoration: none;
  transition: color 160ms var(--ease, ease), background-color 160ms var(--ease, ease);
}

.page-products .fx-toc__link:hover,
.page-products .fx-toc__link:focus-visible {
  color: var(--cyan, #35E6D0);
  background: var(--panel, #0C2136);
}

.page-products .fx-toc__idx {
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--cyan, #35E6D0);
  opacity: .75;
}

.page-products .fx-rail .note {
  margin: 14px 0 0;
}

/* ---------- 内容堆栈与区块 ---------- */

.page-products .fx-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  min-width: 0;
}

.page-products .fx-sec {
  position: relative;
  min-width: 0;
  padding: var(--fx-sec-pad) 18px 24px;
  background: var(--panel, #0C2136);
  border: 1px solid var(--line, #24455F);
  transition: border-color 180ms var(--ease, ease);
}

.page-products .fx-sec::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: var(--fx-cut);
  height: var(--fx-cut);
  background: var(--abyss, #061420);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  pointer-events: none;
}

.page-products .fx-sec:hover {
  border-color: #2F5A79;
}

.page-products .fx-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-products .fx-sec__idx {
  flex: none;
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan, #35E6D0);
  border: 1px solid var(--line, #24455F);
  padding: 3px 7px 2px;
}

.page-products .fx-sec .section-title {
  margin: 0;
}

.page-products .fx-sec > p {
  margin: 0 0 14px;
  max-width: 68ch;
}

.page-products .fx-sec > p:last-child {
  margin-bottom: 0;
}

.page-products .fx-fig {
  margin: 16px 0 0;
  border: 1px solid var(--line, #24455F);
}

.page-products .fx-fig img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .fx-sec .note {
  margin-top: 14px;
}

/* ---------- 结构示意 ---------- */

.page-products .fx-flow {
  display: block;
  width: 100%;
  height: auto;
  margin: 8px 0 0;
}

.page-products .fx-flow__box {
  fill: none;
  stroke: var(--line, #24455F);
  stroke-width: 1;
}

.page-products .fx-flow__box--accent {
  fill: rgba(53, 230, 208, .06);
  stroke: var(--cyan, #35E6D0);
}

.page-products .fx-flow__line {
  stroke: var(--cyan, #35E6D0);
  stroke-width: 1.5;
  stroke-dasharray: 5 5;
}

.page-products .fx-flow__arrow {
  fill: var(--cyan, #35E6D0);
}

/* ---------- 要点列表 ---------- */

.page-products .fx-keys {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 1px solid var(--line, #24455F);
}

.page-products .fx-keys__item {
  display: grid;
  gap: 4px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--line, #24455F);
}

.page-products .fx-keys__k {
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan, #35E6D0);
}

.page-products .fx-keys__v {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink, #E9F2F6);
}

/* ---------- 数据面板信息图 ---------- */

.page-products .fx-info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 6px;
}

.page-products .fx-info__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 12px;
  background: var(--layer, #143049);
  border: 1px solid var(--line, #24455F);
  border-left: 2px solid var(--cyan, #35E6D0);
  min-width: 0;
}

.page-products .fx-info__num {
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink, #E9F2F6);
}

.page-products .fx-info__num--sm {
  font-size: 19px;
  letter-spacing: .02em;
  padding-top: 8px;
}

.page-products .fx-info__num--coral {
  color: var(--coral, #FF6B4A);
}

.page-products .fx-info__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted, #9BB1C0);
}

.page-products .fx-info__delta {
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--cyan, #35E6D0);
}

/* ---------- 图文对位 ---------- */

.page-products .fx-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  min-width: 0;
}

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

.page-products .fx-duo__body > p {
  margin: 0 0 14px;
  max-width: 62ch;
}

.page-products .fx-duo__media {
  margin: 0;
  border: 1px solid var(--line, #24455F);
}

.page-products .fx-duo__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .fx-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: fxstep;
  border-top: 1px solid var(--line, #24455F);
}

.page-products .fx-steps__item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line, #24455F);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink, #E9F2F6);
}

.page-products .fx-steps__n {
  flex: none;
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--cyan, #35E6D0);
}

/* ---------- 双栏目 ---------- */

.page-products .fx-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 4px;
}

.page-products .fx-col {
  padding: 16px 14px;
  background: var(--abyss, #061420);
  border: 1px solid var(--line, #24455F);
  border-top: 2px solid var(--cyan-deep, #1B8F84);
  min-width: 0;
}

.page-products .fx-col .kicker {
  margin: 0 0 8px;
}

.page-products .fx-col .card-title {
  margin: 0 0 8px;
}

.page-products .fx-col p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted, #9BB1C0);
}

/* ---------- 终端示意 ---------- */

.page-products .fx-devices {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 4px;
}

.page-products .fx-device {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 12px;
  background: var(--abyss, #061420);
  border: 1px solid var(--line, #24455F);
  min-width: 0;
}

.page-products .fx-device__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .fx-device .card-title {
  margin: 0;
}

.page-products .fx-device .note {
  margin: 0;
}

.page-products .fx-dv__outer {
  fill: none;
  stroke: var(--line, #24455F);
  stroke-width: 1.5;
}

.page-products .fx-dv__rail,
.page-products .fx-dv__card {
  fill: var(--layer, #143049);
  stroke: none;
}

.page-products .fx-dv__card--hot {
  fill: rgba(53, 230, 208, .12);
  stroke: var(--cyan, #35E6D0);
  stroke-width: 2;
}

/* ---------- 更新节奏 ---------- */

.page-products .fx-beat {
  list-style: none;
  margin: 6px 0 0;
  padding: 0 0 0 16px;
  border-left: 1px solid var(--line, #24455F);
}

.page-products .fx-beat__item {
  position: relative;
  padding: 0 0 18px 12px;
}

.page-products .fx-beat__item:last-child {
  padding-bottom: 4px;
}

.page-products .fx-beat__item::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--abyss, #061420);
  border: 1px solid var(--cyan, #35E6D0);
  transform: rotate(45deg);
}

.page-products .fx-beat__time {
  display: block;
  font-family: var(--font-mono, monospace);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan, #35E6D0);
  margin-bottom: 5px;
}

.page-products .fx-beat__desc {
  display: block;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink, #E9F2F6);
  max-width: 60ch;
}

.page-products .fx-tagrow {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .fx-tagrow li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.page-products .fx-tagrow__t {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted, #9BB1C0);
}

/* ---------- 折叠问答 ---------- */

.page-products .fx-qa {
  margin-top: 16px;
  background: var(--abyss, #061420);
  border: 1px solid var(--line, #24455F);
}

.page-products .fx-qa summary {
  cursor: pointer;
  padding: 13px 14px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink, #E9F2F6);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  transition: color 160ms var(--ease, ease);
}

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

.page-products .fx-qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono, monospace);
  font-size: 16px;
  color: var(--cyan, #35E6D0);
}

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

.page-products .fx-qa summary:hover {
  color: var(--cyan, #35E6D0);
}

.page-products .fx-qa p {
  margin: 0;
  padding: 0 14px 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted, #9BB1C0);
  max-width: 68ch;
  border-top: 1px solid var(--line, #24455F);
  padding-top: 14px;
}

/* ---------- 收尾 ---------- */

.page-products .fx-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 22px 18px;
  background: linear-gradient(135deg, rgba(27, 143, 132, .18), rgba(12, 33, 54, .95) 58%);
  border: 1px solid var(--cyan-deep, #1B8F84);
}

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

.page-products .fx-cta .kicker {
  margin: 0 0 8px;
}

.page-products .fx-cta .section-title {
  margin: 0 0 8px;
}

.page-products .fx-cta p:last-child {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted, #9BB1C0);
}

.page-products .fx-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-products .fx-sec {
    padding: 26px 26px 28px;
  }

  .page-products .fx-info {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-products .fx-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 26px 26px;
  }
}

@media (min-width: 1024px) {
  .page-products .fx-split {
    grid-template-columns: minmax(210px, 3fr) minmax(0, 9fr);
    gap: 30px;
  }

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

  .page-products .fx-toc li:nth-child(odd) {
    border-right: 0;
  }

  .page-products .fx-toc__link {
    padding: 11px 8px;
  }

  .page-products .fx-toc__link:hover,
  .page-products .fx-toc__link:focus-visible {
    padding-left: 14px;
  }

  .page-products .fx-rail {
    position: sticky;
    top: 84px;
  }

  .page-products .fx-duo {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 24px;
  }

  .page-products .fx-duo--rev {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1400px) {
  .page-products .fx-split {
    grid-template-columns: minmax(240px, 3fr) minmax(0, 9fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fx-toc__link,
  .page-products .fx-sec,
  .page-products .fx-qa summary {
    transition: none;
  }
}
<<<END>>>