.page-products {
  --fx-gap: clamp(20px, 3vw, 36px);
  --fx-shell-narrow: 900px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-products .fx-hero {
  padding-top: clamp(26px, 4vw, 46px);
}

.page-products .fx-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-products .fx-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.02em;
  font-size: clamp(32px, 6.2vw, 58px);
  line-height: 1.05;
  margin: 14px 0 16px;
  color: var(--text);
}

.page-products .fx-hero-copy .lede {
  color: var(--muted);
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.75;
}

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

.page-products .fx-hero-copy .annotation {
  margin-top: 18px;
}

.page-products .fx-hero-board {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  padding: clamp(18px, 2.6vw, 26px);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(53, 240, 200, .10), transparent 62%),
    linear-gradient(165deg, rgba(18, 59, 51, .78), rgba(5, 15, 13, .92));
  min-width: 0;
}

.page-products .fx-index-grid {
  margin-top: 14px;
  grid-template-columns: minmax(0, 1fr);
}

/* ---------- 章节骨架 ---------- */
.page-products .fx-block-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .fx-num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  border: 1px solid rgba(53, 240, 200, .38);
  border-radius: var(--r-pill);
  padding: 5px 11px;
  background: rgba(53, 240, 200, .07);
  white-space: nowrap;
}

.page-products .fx-block-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.015em;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.16;
  color: var(--text);
}

.page-products .fx-summary {
  margin-top: 12px;
  color: var(--muted);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.78;
}

.page-products .fx-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-products .fx-push {
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

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

/* ---------- 通用两列 ---------- */
.page-products .fx-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

/* ---------- 订阅章节 ---------- */
.page-products .fx-role-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 14px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, rgba(18, 59, 51, .7), rgba(5, 15, 13, .5));
}

.page-products .fx-role-key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-products .fx-role-val {
  font-size: 15px;
  color: var(--text);
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: rgba(53, 240, 200, .1);
  border: 1px solid rgba(53, 240, 200, .24);
}

.page-products .fx-role-note {
  flex-basis: 100%;
}

/* ---------- 折叠层 ---------- */
.page-products .fx-more {
  margin-top: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(11, 36, 31, .85), rgba(5, 15, 13, .7));
  overflow: hidden;
}

.page-products .fx-more > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: background var(--t-fast) var(--ease);
}

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

.page-products .fx-more > summary::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan-glow);
  flex: 0 0 auto;
}

.page-products .fx-more > summary::after {
  content: "展开";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-products .fx-more[open] > summary::after {
  content: "收起";
}

.page-products .fx-more > summary:hover {
  background: rgba(53, 240, 200, .06);
}

.page-products .fx-more-body {
  padding: 2px 18px 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
  border-top: 1px solid var(--line-soft);
}

.page-products .fx-more-body p + p {
  margin-top: 12px;
}

.page-products .fx-more-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 200, .45);
}

.page-products .fx-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .fx-list li {
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

.page-products .fx-list-key {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
  margin-right: 8px;
}

/* ---------- 索引轨道 ---------- */
.page-products .fx-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(112px, max-content);
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 14px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .fx-node {
  scroll-snap-align: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 10px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: rgba(18, 59, 51, .45);
  color: var(--muted);
  white-space: nowrap;
  text-align: center;
}

.page-products .fx-node.is-live {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
  box-shadow: 0 0 20px var(--cyan-glow);
}

/* ---------- 统计网格 ---------- */
.page-products .fx-stats {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-products .fx-stat-group-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-products .fx-stat {
  display: grid;
  gap: 4px;
  padding: 12px 12px 10px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: linear-gradient(160deg, rgba(18, 59, 51, .62), rgba(5, 15, 13, .72));
  min-width: 0;
}

.page-products .fx-stat-name {
  font-size: 14px;
  color: var(--text);
  overflow-wrap: break-word;
}

.page-products .fx-stat-val {
  font-size: 12px;
  color: var(--flame);
  letter-spacing: .04em;
}

.page-products .fx-stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- 资料库 ---------- */
.page-products .fx-archive {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  align-items: start;
}

.page-products .fx-well {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 1px solid var(--line);
}

.page-products .fx-well-item {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-products .fx-well-item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 19px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan-dim);
  box-shadow: 0 0 10px var(--cyan-glow);
}

.page-products .fx-well-year {
  font-size: 15px;
  color: var(--text);
  letter-spacing: .04em;
}

.page-products .fx-well-meta {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .02em;
}

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

/* ---------- 版本对照 ---------- */
.page-products .fx-compare {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-products .fx-compare-row {
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, rgba(11, 36, 31, .82), rgba(5, 15, 13, .68));
}

.page-products .fx-compare-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-products .fx-compare-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  letter-spacing: -.01em;
}

.page-products .fx-bar {
  height: 12px;
  border-radius: var(--r-pill);
  background: rgba(36, 68, 61, .55);
  overflow: hidden;
}

.page-products .fx-bar-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
}

.page-products .fx-bar-fill--std {
  width: 100%;
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan));
  box-shadow: 0 0 16px var(--cyan-glow);
}

.page-products .fx-bar-fill--lite {
  width: 38%;
  background: linear-gradient(90deg, var(--amber), var(--flame));
}

.page-products .fx-compare-note {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 适配参数 ---------- */
.page-products .fx-spec-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-bottom: clamp(20px, 3vw, 28px);
}

.page-products .fx-spec {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  padding: 20px 18px;
  background:
    linear-gradient(140deg, rgba(18, 59, 51, .7), rgba(5, 15, 13, .8));
}

/* ---------- 收束 ---------- */
.page-products .fx-start {
  border-top: 1px solid var(--line-soft);
}

.page-products .fx-start-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 44px);
  align-items: start;
}

.page-products .fx-start-copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: 14px 0 14px;
  color: var(--text);
}

.page-products .fx-start-copy p {
  color: var(--muted);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.78;
}

.page-products .fx-start-copy a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 200, .45);
}

.page-products .fx-start-side {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xl);
  padding: 22px;
  background: linear-gradient(165deg, rgba(18, 59, 51, .72), rgba(5, 15, 13, .88));
}

.page-products .fx-start-side-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-products .fx-start-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .fx-start-links li {
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-products .fx-start-links li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .fx-start-links a {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.page-products .fx-start-links a:hover {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .fx-hero-actions .btn {
    min-width: 168px;
  }

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

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

@media (min-width: 860px) {
  .page-products .fx-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

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

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

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

@media (min-width: 1080px) {
  .page-products .fx-index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .fx-stat-grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .page-products .fx-start-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }

  .page-products .fx-compare-row {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: center;
    gap: 20px;
  }

  .page-products .fx-compare-row .fx-compare-note {
    grid-column: 3;
    grid-row: 1;
  }

  .page-products .fx-compare-row .fx-bar {
    grid-column: 2;
    grid-row: 1;
  }

  .page-products .fx-compare-head {
    grid-column: 1;
    grid-row: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fx-node,
  .page-products .fx-more > summary {
    transition: none;
  }
}
</final>