.page-products {
  --fc-edge: var(--grid);
  --fc-card: var(--panel);
  --fc-soft: var(--ink-soft);
  --fc-pad: clamp(14px, 2.2vw, 24px);
  --fc-radius: 0;
}

/* ---------- 首屏 ---------- */
.page-products .fc-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(110% 70% at 78% 0%, rgba(0, 245, 212, 0.11), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--fc-soft) 100%);
  border-bottom: 1px solid var(--fc-edge);
  padding-block: clamp(28px, 5.5vw, 64px) 0;
}

.page-products .fc-hero__grid-lines {
  position: absolute;
  top: -30%;
  right: -12%;
  width: 62%;
  height: 150%;
  background-image: repeating-linear-gradient(
    90deg,
    var(--fc-edge) 0 1px,
    transparent 1px 54px
  );
  opacity: 0.32;
  transform: skewX(-8deg);
  pointer-events: none;
}

.page-products .fc-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .fc-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 7.4vw, 74px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 16em;
}

.page-products .fc-hero__lede {
  max-width: 44em;
  color: var(--text-dim);
  font-size: clamp(15px, 1.6vw, 18px);
}

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

.page-products .fc-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--fc-edge);
  border-top: 1px solid var(--fc-edge);
}

.page-products .fc-hero__meta-item {
  background: var(--ink);
  padding: 14px var(--fc-pad) 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .fc-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-products .fc-hero__cap {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-products .fc-hero__figure {
  margin: clamp(22px, 3.4vw, 40px) 0 0;
  border-top: 1px solid var(--fc-edge);
  border-bottom: 1px solid var(--fc-edge);
  overflow: hidden;
  max-height: clamp(170px, 28vw, 320px);
}

.page-products .fc-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

/* ---------- 主体骨架 ---------- */
.page-products .fc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 44px);
  padding-block: clamp(28px, 4.5vw, 60px) clamp(40px, 6vw, 80px);
}

.page-products .fc-toc {
  border: 1px solid var(--fc-edge);
  background: var(--ink);
  padding: 14px var(--fc-pad) 16px;
}

.page-products .fc-toc__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .fc-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 12px;
}

.page-products .fc-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 2px;
  border-bottom: 1px solid transparent;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.35;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-products .fc-toc__link:hover,
.page-products .fc-toc__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products .fc-toc__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

/* ---------- 功能区块 ---------- */
.page-products .fc-main {
  min-width: 0;
}

.page-products .fc-block {
  border-top: 1px solid var(--fc-edge);
  padding-top: clamp(20px, 3vw, 34px);
  margin-bottom: clamp(38px, 5.5vw, 72px);
}

.page-products .fc-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .fc-block__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.page-products .fc-block__no {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 15px);
  color: var(--gold);
  letter-spacing: 0.08em;
  padding-top: 6px;
}

.page-products .fc-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .fc-block__lede {
  max-width: 46em;
  margin: 0 0 clamp(20px, 3vw, 30px);
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .fc-note {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.75;
}

.page-products .fc-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 245, 212, 0.4);
}

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

/* ---------- 01 注册 ---------- */
.page-products .fc-steps {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--fc-edge);
  border: 1px solid var(--fc-edge);
}

.page-products .fc-step {
  background: var(--fc-card);
  padding: var(--fc-pad);
}

.page-products .fc-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-products .fc-step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .fc-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .fc-start-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 28px);
  align-items: start;
}

.page-products .fc-spec {
  border-top: 1px solid var(--fc-edge);
}

.page-products .fc-spec__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--fc-edge);
}

.page-products .fc-spec__key {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .fc-spec__val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--paper);
}

.page-products .fc-shot {
  margin: 0;
}

.page-products .fc-shot__frame {
  position: relative;
  border: 1px solid var(--fc-edge);
  background: var(--fc-card);
  padding: 10px;
  max-width: 300px;
  margin-inline: auto;
}

.page-products .fc-shot__frame::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -18px;
  width: 18px;
  height: 1px;
  background: var(--gold);
}

.page-products .fc-shot__frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}

.page-products .fc-shot__cap {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  text-align: center;
}

/* ---------- 02 面板 ---------- */
.page-products .fc-panelgrid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--fc-edge);
  border: 1px solid var(--fc-edge);
}

.page-products .fc-paneltile {
  background: var(--fc-card);
  padding: var(--fc-pad);
}

.page-products .fc-paneltile--lead {
  background: linear-gradient(180deg, var(--fc-card) 0%, transparent 130%);
  border-left: 2px solid var(--cyan);
}

.page-products .fc-paneltile__label {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .fc-paneltile__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 03 射手榜与区间 ---------- */
.page-products .fc-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-products .fc-filters__item {
  border: 1px solid var(--fc-edge);
  padding: 7px 14px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  background: var(--ink);
}

.page-products .fc-range-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.page-products .fc-range-jump__hint {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 4px;
}

.page-products .fc-range-jump__btn {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--fc-edge);
  color: var(--cyan);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-products .fc-range-jump__btn:hover,
.page-products .fc-range-jump__btn:focus-visible {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
}

.page-products .fc-ranges {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .fc-range {
  position: relative;
  background: var(--fc-card);
  border: 1px solid var(--fc-edge);
  border-top: 3px solid var(--fc-edge);
  padding: var(--fc-pad);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-products .fc-range:target {
  border-top-color: var(--cyan);
  background: linear-gradient(180deg, rgba(0, 245, 212, 0.08), transparent 70%), var(--fc-card);
}

.page-products .fc-range__tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-products .fc-range__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.01em;
}

.page-products .fc-range__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .fc-wide {
  margin: 0;
  border: 1px solid var(--fc-edge);
  background: var(--ink);
}

.page-products .fc-wide img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .fc-wide__cap {
  padding: 10px var(--fc-pad) 12px;
  border-top: 1px solid var(--fc-edge);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 04 球队订阅 ---------- */
.page-products .fc-teams {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .fc-team {
  background: var(--fc-card);
  border: 1px solid var(--fc-edge);
  padding: var(--fc-pad);
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-products .fc-team:hover {
  border-color: var(--cyan);
  background: linear-gradient(160deg, rgba(0, 245, 212, 0.07), transparent 65%), var(--fc-card);
}

.page-products .fc-team__tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-products .fc-team__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .fc-team__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .fc-team__more {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--fc-edge);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .fc-teams__figure {
  margin: 0;
  border: 1px solid var(--fc-edge);
  background: var(--ink);
}

.page-products .fc-teams__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .fc-teams__cap {
  padding: 10px var(--fc-pad) 12px;
  border-top: 1px solid var(--fc-edge);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 05 资料库 ---------- */
.page-products .fc-archive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 28px);
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-products .fc-tablewrap {
  overflow-x: auto;
  border: 1px solid var(--fc-edge);
  background: var(--fc-card);
}

.page-products .fc-versions {
  width: 100%;
  min-width: 320px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .fc-versions caption {
  text-align: left;
  padding: 12px var(--fc-pad);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--fc-edge);
}

.page-products .fc-versions th,
.page-products .fc-versions td {
  text-align: left;
  vertical-align: top;
  padding: 12px var(--fc-pad);
  border-bottom: 1px solid var(--fc-edge);
  line-height: 1.7;
}

.page-products .fc-versions tr:last-child th,
.page-products .fc-versions tr:last-child td {
  border-bottom: 0;
}

.page-products .fc-versions th {
  width: 34%;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 400;
  color: var(--violet);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .fc-versions td {
  color: var(--text-dim);
  font-size: 13.5px;
}

.page-products .fc-archive-figure {
  margin: 0;
  border: 1px solid var(--fc-edge);
  background: var(--ink);
}

.page-products .fc-archive-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .fc-archive-figcap {
  padding: 10px var(--fc-pad) 12px;
  border-top: 1px solid var(--fc-edge);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .fc-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--fc-edge);
}

.page-products .fc-timeline__item {
  position: relative;
  padding: 0 0 18px 20px;
}

.page-products .fc-timeline__item:last-child {
  padding-bottom: 0;
}

.page-products .fc-timeline__dot {
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-products .fc-timeline__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.page-products .fc-timeline__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 06 目录 ---------- */
.page-products .fc-catalog {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--fc-edge);
  background: var(--fc-edge);
  display: grid;
  gap: 1px;
}

.page-products .fc-catalog__level {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  background: var(--fc-card);
  padding: var(--fc-pad);
}

.page-products .fc-catalog__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding-top: 4px;
}

.page-products .fc-catalog__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .fc-catalog__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 后续分流 ---------- */
.page-products .fc-next {
  border: 1px solid var(--fc-edge);
  background: linear-gradient(200deg, rgba(110, 90, 168, 0.16), transparent 55%), var(--ink);
  padding: clamp(20px, 3vw, 34px);
}

.page-products .fc-next__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-products .fc-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--fc-edge);
  border: 1px solid var(--fc-edge);
}

.page-products .fc-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--fc-card);
  padding: 16px var(--fc-pad) 18px;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.page-products .fc-next__card:hover,
.page-products .fc-next__card:focus-visible {
  background: var(--fc-soft);
}

.page-products .fc-next__kicker {
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .fc-next__name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .fc-next__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

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

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

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

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

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

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

@media (min-width: 860px) {
  .page-products .fc-start-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-products .fc-archive-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

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

  .page-products .fc-team:nth-child(2) {
    transform: translateY(18px);
  }

  .page-products .fc-team:nth-child(3) {
    transform: translateY(-10px);
  }

  .page-products .fc-teams__figure {
    margin-top: -6px;
  }

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

@media (min-width: 980px) {
  .page-products .fc-shell {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-products .fc-toc {
    position: sticky;
    top: calc(var(--header-h) + 16px);
    align-self: start;
    padding: 18px 18px 20px;
  }

  .page-products .fc-toc__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .page-products .fc-toc__link {
    font-size: 13.5px;
    padding: 9px 0;
    border-bottom: 1px solid var(--fc-edge);
  }

  .page-products .fc-toc__link:hover,
  .page-products .fc-toc__link:focus-visible {
    border-bottom-color: var(--cyan);
  }

  .page-products .fc-block__lede {
    font-size: 15.5px;
  }

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

  .page-products .fc-paneltile--lead {
    grid-column: span 2;
  }

  .page-products .fc-wide {
    margin-right: clamp(-40px, -3vw, -16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fc-toc__link,
  .page-products .fc-range,
  .page-products .fc-team,
  .page-products .fc-next__card,
  .page-products .fc-range-jump__btn {
    transition: none;
  }

  .page-products .fc-team:nth-child(2),
  .page-products .fc-team:nth-child(3) {
    transform: none;
  }
}
<<<END>>>