.page-products {
  --pf-gap: 20px;
  --pf-pad: 22px;
  padding-bottom: 88px;
}

.page-products .pf-crumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  position: relative;
  padding-top: 28px;
}

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

.page-products .pf-hero__lead h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 7.2vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--paper);
}

.page-products .pf-hero__text {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-soft);
  max-width: 38em;
}

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

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

.page-products .pf-shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-products .pf-shot figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
}

.page-products .pf-mini {
  margin-top: 14px;
  padding: 16px 18px 18px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}

.page-products .pf-mini__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .pf-mini__bar {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 54px;
  margin-top: 12px;
}

.page-products .pf-mini__seg {
  flex: 1 1 0;
  border-radius: 6px 6px 3px 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 240, 208, 0.12));
  height: 52%;
  transition: filter var(--t) var(--ease);
}

.page-products .pf-mini__seg:nth-child(2) { height: 70%; }
.page-products .pf-mini__seg:nth-child(3) { height: 44%; }
.page-products .pf-mini__seg:nth-child(4) { height: 62%; }
.page-products .pf-mini__seg:nth-child(5) { height: 78%; }
.page-products .pf-mini__seg.is-accent {
  background: linear-gradient(180deg, var(--amber), rgba(255, 179, 71, 0.12));
  height: 92%;
}

.page-products .pf-mini:hover .pf-mini__seg {
  filter: brightness(1.12);
}

.page-products .pf-mini__cap {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 模块地图 ---------- */
.page-products .pf-map {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.page-products .pf-map__node {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-products .pf-map__node:hover,
.page-products .pf-map__node:focus-visible {
  border-color: var(--cyan);
  background: rgba(53, 240, 208, 0.08);
  transform: translateY(-1px);
}

.page-products .pf-map__dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--cyan);
}

.page-products .pf-map__name {
  font-weight: 600;
}

.page-products .pf-map__hint {
  display: none;
}

/* ---------- 章节带 ---------- */
.page-products .pf-sec {
  padding-top: 56px;
}

.page-products .pf-band {
  display: grid;
  gap: 18px;
  padding: var(--pf-pad);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

.page-products .pf-band__num {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--violet);
}

.page-products .pf-h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-products .pf-band__text {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-soft);
  max-width: 40em;
}

.page-products .pf-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
}

.page-products .pf-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-products .pf-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}

.page-products .pf-list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .pf-figure {
  margin: 0;
}

.page-products .pf-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  object-fit: cover;
}

.page-products .pf-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 区间 ---------- */
.page-products .pf-zoneswitch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-products .pf-zoneswitch .chip {
  padding: 8px 16px;
  min-height: 36px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-products .pf-zoneswitch .chip:hover,
.page-products .pf-zoneswitch .chip:focus-visible {
  border-color: var(--mist);
  color: var(--paper);
}

.page-products .pf-zoneswitch .chip[aria-pressed="true"],
.page-products .pf-zoneswitch .chip.is-active {
  border-color: var(--cyan);
  background: rgba(53, 240, 208, 0.12);
  color: var(--cyan);
}

.page-products .pf-zones {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  grid-template-columns: repeat(auto-fit, minmax(136px, 1fr));
}

.page-products .pf-zone {
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(12, 42, 36, 0.62);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-products .pf-zone:hover {
  border-color: var(--cyan);
  background: rgba(53, 240, 208, 0.08);
}

.page-products .pf-zone__range {
  display: block;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-products .pf-zone__note {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--slate);
}

.page-products .pf-zone.is-accent {
  border-color: rgba(255, 179, 71, 0.5);
  background: rgba(255, 179, 71, 0.09);
}

.page-products .pf-zone.is-accent .pf-zone__range {
  color: var(--amber);
}

/* ---------- 版本 ---------- */
.page-products .pf-band__head {
  display: block;
}

.page-products .pf-versions {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-products .pf-ver {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(7, 28, 24, 0.55);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-products .pf-ver:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products .pf-ver__tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--violet);
}

.page-products .pf-ver__title {
  margin: 8px 0 0;
  font-size: 19px;
  line-height: 1.3;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-products .pf-ver__list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  display: grid;
  gap: 6px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-products .pf-ver__list li {
  padding: 7px 9px;
  border-radius: 8px;
  transition: background var(--t) var(--ease);
}

.page-products .pf-ver__list li:hover {
  background: rgba(53, 240, 208, 0.09);
}

.page-products .pf-ver__list li.is-diff {
  box-shadow: inset 2px 0 0 var(--amber);
  padding-left: 12px;
}

/* ---------- 场景 ---------- */
.page-products .pf-sec__head .pf-sec__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-soft);
  max-width: 40em;
}

.page-products .pf-scenes {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-products .pf-scene {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-800);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-products .pf-scene:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products .pf-scene__title {
  margin: 12px 0 0;
  font-size: 20px;
  line-height: 1.3;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-products .pf-scene__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .pf-acc {
  margin-top: 14px;
}

.page-products .pf-acc summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

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

.page-products .pf-acc summary::after {
  content: "＋";
  font-size: 14px;
}

.page-products .pf-acc[open] summary::after {
  content: "－";
}

.page-products .pf-acc__list {
  margin: 12px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-products .pf-acc__list li::marker {
  color: var(--mist);
  font-family: var(--font-mono);
}

/* ---------- 开始使用 ---------- */
.page-products .pf-start {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-products .pf-start__main,
.page-products .pf-start__side {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-800);
}

.page-products .pf-start__main {
  background: linear-gradient(150deg, rgba(53, 240, 208, 0.12), rgba(12, 42, 36, 0.9) 55%);
  border-color: rgba(53, 240, 208, 0.35);
}

.page-products .pf-start__title {
  margin: 0;
  font-size: 20px;
  line-height: 1.3;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-products .pf-start__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text-soft);
}

.page-products .pf-start .data-strip {
  margin-top: 16px;
}

.page-products .pf-start__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-products .pf-start__links {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
}

.page-products .pf-start__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.4);
  padding-bottom: 2px;
  transition: border-color var(--t) var(--ease);
}

.page-products .pf-start__links a:hover,
.page-products .pf-start__links a:focus-visible {
  border-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pf-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-products {
    --pf-pad: 28px;
  }

  .page-products .pf-sec {
    padding-top: 76px;
  }

  .page-products .pf-band {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 26px;
    padding: 28px 32px;
  }

  .page-products .pf-band__num {
    font-size: 52px;
  }

  .page-products .pf-band--media {
    grid-template-columns: 92px minmax(0, 1fr) 286px;
    align-items: start;
  }

  .page-products .pf-scenes {
    grid-template-columns: 1.15fr 1fr 0.85fr;
    align-items: start;
  }

  .page-products .pf-start {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: stretch;
  }
}

@media (min-width: 1024px) {
  .page-products .pf-hero {
    padding-top: 40px;
  }

  .page-products .pf-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: start;
  }

  .page-products .pf-hero__side {
    position: sticky;
    top: 88px;
  }

  .page-products .pf-map__node {
    padding: 12px 18px;
  }

  .page-products .pf-map__hint {
    display: block;
    position: absolute;
    left: 0;
    top: calc(100% + 8px);
    z-index: 4;
    width: 224px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--ink-700);
    color: var(--text-soft);
    font-size: 12px;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
  }

  .page-products .pf-map__node:hover .pf-map__hint,
  .page-products .pf-map__node:focus-visible .pf-map__hint {
    opacity: 1;
    transform: translateY(0);
  }
}
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