.page-products {
  --pf-panel-radius: 2px;
}

/* ---------- 面包屑与首屏 ---------- */

.page-products .crumbs {
  padding-top: 20px;
}

.page-products .pf-hero {
  padding-top: 24px;
}

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

@media (min-width: 920px) {
  .page-products .pf-hero-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
    gap: 56px;
    align-items: start;
  }
}

.page-products .pf-hero-copy h1 {
  margin: 12px 0 20px;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.18;
  font-size: clamp(30px, 5.4vw, 52px);
}

.page-products .pf-hero-note {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
  color: var(--fg-muted);
  font-size: 14px;
  letter-spacing: 0.02em;
}

.page-products .pf-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .pf-hero-panel {
  background: linear-gradient(155deg, var(--ink) 0%, var(--ink-2) 62%, #16463C 100%);
  border: 1px solid var(--ink-2);
  border-radius: var(--pf-panel-radius);
  box-shadow: 0 1px 0 rgba(11, 43, 38, 0.05);
  padding: 24px 22px 26px;
  color: var(--paper);
}

.page-products .pf-panel-title {
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(198, 163, 74, 0.35);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
  font-weight: 700;
}

.page-products .pf-hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .pf-hero-stats li {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(245, 241, 230, 0.12);
}

.page-products .pf-hero-stats li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pf-stat-num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.page-products .pf-stat-unit {
  font-size: 14px;
  color: var(--gold-soft);
}

.page-products .pf-stat-label {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 241, 230, 0.72);
}

/* ---------- 通用小件 ---------- */

.page-products .pf-head {
  max-width: 62ch;
}

.page-products .pf-shot {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--pf-panel-radius);
  background: var(--surface-2);
  overflow: hidden;
}

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

.page-products .pf-shot .media-caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  font-size: 13px;
  color: var(--fg-muted);
}

.page-products .pf-shot--hero {
  margin-top: 28px;
  margin-bottom: 28px;
}

/* ---------- 能力矩阵 ---------- */

.page-products .pf-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 680px) {
  .page-products .pf-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pf-card--wide {
    grid-column: span 2;
  }
}

@media (min-width: 1020px) {
  .page-products .pf-bento {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-auto-flow: dense;
  }
  .page-products .pf-card--focus {
    grid-column: span 2;
    grid-row: span 2;
  }
  .page-products .pf-card--wide {
    grid-column: span 2;
    grid-row: span 1;
  }
}

.page-products .pf-card {
  border: 1px solid var(--border);
  border-radius: var(--pf-panel-radius);
  background: var(--surface);
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-products .pf-card:hover {
  border-color: var(--border-strong);
}

.page-products .pf-card--focus {
  background: linear-gradient(165deg, var(--ink) 0%, var(--ink-2) 58%, #10403A 100%);
  border-color: var(--ink-2);
  color: var(--paper);
  padding: 26px 24px 28px;
  position: relative;
  overflow: hidden;
}

.page-products .pf-card--focus::after {
  content: "";
  position: absolute;
  inset: auto -60px -80px auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(79, 209, 177, 0.22) 0%, rgba(79, 209, 177, 0) 70%);
  pointer-events: none;
}

.page-products .pf-card--muted {
  background: var(--surface-2);
}

.page-products .pf-card-tag {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-ink);
}

.page-products .pf-card--focus .pf-card-tag {
  color: var(--gold);
}

.page-products .pf-card-title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1.35;
}

.page-products .pf-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
}

.page-products .pf-card--focus p {
  color: rgba(245, 241, 230, 0.78);
}

.page-products .pf-card-list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pf-card-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-muted);
}

.page-products .pf-card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-products .pf-card--focus .pf-card-list li {
  color: rgba(245, 241, 230, 0.74);
}

/* ---------- 三步流程 ---------- */

.page-products .pf-steps-section {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.page-products .pf-shot--wide {
  margin-top: 26px;
}

.page-products .pf-steps {
  list-style: none;
  margin: 28px 0 0;
  padding: 0 0 10px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(252px, 1fr);
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-products .pf-step {
  scroll-snap-align: start;
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--red);
  border-radius: var(--pf-panel-radius);
  padding: 20px 20px 22px;
}

.page-products .pf-step-num {
  display: inline-block;
  min-width: 46px;
  padding: 4px 8px;
  border: 1px solid var(--gold);
  background: var(--ink);
  color: var(--gold-soft);
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.06em;
}

.page-products .pf-step-title {
  margin: 14px 0 8px;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.03em;
}

.page-products .pf-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-muted);
}

@media (min-width: 880px) {
  .page-products .pf-steps {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow-x: visible;
    padding-bottom: 0;
  }
  .page-products .pf-step + .pf-step::before {
    content: "→";
    position: absolute;
    left: -13px;
    top: 26px;
    width: 22px;
    text-align: center;
    color: var(--red);
    font-size: 17px;
    font-weight: 700;
    line-height: 1;
  }
}

/* ---------- V2.0 变化 ---------- */

.page-products .pf-v2-grid {
  margin-top: 26px;
  display: grid;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (min-width: 820px) {
  .page-products .pf-v2-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pf-v2-card {
  background: var(--surface);
  padding: 26px 22px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .pf-v2-index {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .pf-v2-card h3 {
  margin: 0;
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.page-products .pf-v2-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-muted);
}

/* ---------- 版本日志 ---------- */

.page-products .pf-shot--tall {
  margin-top: 26px;
}

.page-products .pf-log {
  list-style: none;
  margin: 28px 0 0;
  padding: 0 0 0 18px;
  border-left: 2px solid var(--gold-soft);
  display: grid;
  gap: 24px;
}

.page-products .pf-log-item {
  position: relative;
  display: grid;
  gap: 4px;
}

.page-products .pf-log-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--surface);
  border: 2px solid var(--gold);
  transform: rotate(45deg);
  transition: background-color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-products .pf-log-item.is-current::before {
  background: var(--red);
  border-color: var(--red);
}

.page-products .pf-log-batch {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-ink);
  border-left: 3px solid var(--gold);
  padding-left: 10px;
  line-height: 1.4;
}

.page-products .pf-log-ver {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-products .pf-log-title {
  margin: 4px 0 6px;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1.45;
}

.page-products .pf-log-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-muted);
}

/* ---------- 安装指引 ---------- */

.page-products .pf-qa {
  margin-top: 26px;
}

.page-products .pf-qa .qa-item {
  border: 1px solid var(--border);
  border-left: 3px solid var(--border-strong);
  background: var(--surface);
  border-radius: var(--pf-panel-radius);
  transition: border-color 240ms var(--ease);
}

.page-products .pf-qa .qa-item + .qa-item {
  margin-top: 12px;
}

.page-products .pf-qa .qa-item:has(.qa-q[aria-expanded="true"]) {
  border-left-color: var(--gold);
}

.page-products .pf-qa .qa-h {
  margin: 0;
  font-size: 1rem;
}

.page-products .pf-qa .qa-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 20px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--fg);
  line-height: 1.5;
}

.page-products .pf-qa .qa-q::after {
  content: "+";
  flex: none;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 16px;
  font-weight: 400;
  line-height: 1;
}

.page-products .pf-qa .qa-q[aria-expanded="true"]::after {
  content: "−";
  background: var(--gold);
  color: var(--ink);
}

.page-products .pf-qa .qa-a {
  padding: 0 20px 22px;
}

.page-products .pf-qa .qa-a p,
.page-products .pf-qa .qa-a li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-muted);
}

.page-products .pf-qa .qa-a p {
  margin: 0;
}

.page-products .pf-ordered {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

/* ---------- 换设备接续 ---------- */

.page-products .pf-switch {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.page-products .pf-switch-grid {
  display: grid;
  gap: 28px;
}

@media (min-width: 900px) {
  .page-products .pf-switch-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
  }
}

.page-products .pf-switch-copy h2 {
  margin: 12px 0 16px;
}

.page-products .pf-switch-copy > p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--fg-muted);
}

.page-products .pf-switch-list {
  list-style: none;
  margin: 20px 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pf-switch-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg);
}

.page-products .pf-switch-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 2px;
  background: var(--gold);
}

.page-products .pf-shot--square img {
  aspect-ratio: 4 / 3;
}

/* ---------- 性能 ---------- */

.page-products .pf-perf-grid {
  margin-top: 26px;
  display: grid;
  gap: 24px;
}

@media (min-width: 960px) {
  .page-products .pf-perf-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }
}

.page-products .pf-shot--perf {
  background: var(--ink);
  border-color: var(--ink-2);
}

.page-products .pf-shot--perf .media-caption {
  background: var(--ink-2);
  border-top-color: rgba(198, 163, 74, 0.35);
  color: var(--gold-soft);
}

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

@media (min-width: 560px) {
  .page-products .pf-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-products .pf-metric {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--pf-panel-radius);
  padding: 18px 16px 16px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-products .pf-metric-num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

.page-products .pf-metric-unit {
  margin-left: 4px;
  font-size: 14px;
  color: var(--steel);
}

.page-products .pf-metric-label {
  font-size: 13px;
  line-height: 1.65;
  color: var(--fg-muted);
}

.page-products .pf-metric-bar {
  display: block;
  height: 4px;
  margin-top: 4px;
  background: var(--surface-2);
  overflow: hidden;
}

.page-products .pf-metric-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--steel), var(--gold));
}

.page-products .pf-metric-fill--a { width: 62%; }
.page-products .pf-metric-fill--b { width: 78%; }
.page-products .pf-metric-fill--c { width: 90%; }
.page-products .pf-metric-fill--d { width: 48%; }

/* ---------- 常见问题指向 ---------- */

.page-products .pf-trouble-grid {
  display: grid;
  gap: 24px;
}

@media (min-width: 900px) {
  .page-products .pf-trouble-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 48px;
    align-items: start;
  }
}

.page-products .pf-trouble-head h2 {
  margin: 12px 0 14px;
}

.page-products .pf-trouble-head .lead {
  margin: 0;
}

.page-products .pf-trouble-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.page-products .pf-trouble-list li {
  border-bottom: 1px solid var(--border);
}

.page-products .pf-trouble-list a {
  display: grid;
  gap: 4px;
  padding: 18px 36px 18px 0;
  position: relative;
  text-decoration: none;
  color: inherit;
  transition: padding-left 200ms var(--ease);
}

.page-products .pf-trouble-list a::after {
  content: "→";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-size: 17px;
  transition: transform 200ms var(--ease);
}

.page-products .pf-trouble-list a:hover {
  padding-left: 8px;
}

.page-products .pf-trouble-list a:hover::after {
  transform: translateY(-50%) translateX(4px);
}

.page-products .pf-trouble-title {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1.5;
}

.page-products .pf-trouble-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg-muted);
}

/* ---------- 收尾 ---------- */

.page-products .pf-next-grid {
  border-top: 1px solid var(--border);
  padding-top: 32px;
  display: grid;
  gap: 24px;
}

@media (min-width: 880px) {
  .page-products .pf-next-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 48px;
    align-items: center;
  }
}

.page-products .pf-next-title {
  margin: 12px 0 14px;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 900;
  letter-spacing: 0.04em;
}

.page-products .pf-next-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-muted);
  max-width: 58ch;
}

.page-products .pf-next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
<<<END>>>