.page-products {
  --pp-text: rgba(244, 239, 228, .84);
  --pp-sec-y: clamp(2.5rem, 6vw, 4.5rem);
  --pp-gap: clamp(1rem, 2.5vw, 1.75rem);
  display: block;
}

.page-products .pp-crumb {
  padding-block: clamp(1.1rem, 3vw, 1.9rem) 0;
}

.page-products .pp-sec {
  padding-block: var(--pp-sec-y);
}

.page-products .pp-cut {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, transparent, var(--line-gold) 18%, var(--line-cyan) 82%, transparent);
}

/* ---------- 框景首屏 ---------- */
.page-products .pp-frame {
  position: relative;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  background:
    linear-gradient(118deg, rgba(245, 165, 36, .13) 0 18%, rgba(245, 165, 36, 0) 18.2%),
    linear-gradient(155deg, rgba(15, 46, 38, .94), rgba(7, 26, 21, .97) 58%, rgba(11, 15, 14, .99));
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1.25rem, 3.5vw, 2.75rem);
  overflow: hidden;
}

.page-products .pp-frame::before,
.page-products .pp-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--line-gold) 0 1px, transparent 1px 16px);
  opacity: .8;
  pointer-events: none;
}

.page-products .pp-frame::before { top: 0; }
.page-products .pp-frame::after { bottom: 0; }

.page-products .pp-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--pp-gap);
}

.page-products .pp-hero__title {
  margin: .55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.4vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--bone);
  text-shadow: 0 2px 0 rgba(194, 87, 26, .35);
}

.page-products .pp-hero__text {
  margin-top: 1.15rem;
  color: var(--pp-text);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.85rem;
}

.page-products .pp-snap {
  padding: 1.25rem 1.35rem;
}

.page-products .pp-snap__cap {
  margin: 0 0 .85rem;
  color: var(--cyan);
  font-size: .76rem;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.page-products .pp-snap__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pp-snap__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: .58rem 0;
  border-bottom: 1px dashed rgba(244, 239, 228, .1);
}

.page-products .pp-snap__list li:last-child {
  border-bottom: 0;
}

.page-products .pp-snap__k {
  color: var(--moss);
  font-size: .8rem;
}

.page-products .pp-snap__v {
  color: var(--gold-bright);
  font-size: .8rem;
  text-align: right;
}

/* ---------- 章节标题 ---------- */
.page-products .pp-head {
  margin-top: clamp(1.75rem, 4vw, 3rem);
  margin-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-products .pp-head .section__title {
  margin: .4rem 0 0;
}

.page-products .pp-head .lede {
  margin-top: .9rem;
}

/* ---------- 图片 ---------- */
.page-products .pp-fig {
  margin: 0;
}

.page-products .pp-fig .figure__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(244, 239, 228, .04);
}

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

/* ---------- 安装步骤 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .6rem 1.15rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-step__num {
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-products .pp-step__body h3 {
  margin: 0 0 .45rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--bone);
}

.page-products .pp-step__body p {
  margin: 0;
  max-width: 62ch;
  color: var(--pp-text);
  font-size: .95rem;
  line-height: 1.8;
}

/* ---------- 配置清单 ---------- */
.page-products .pp-split {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .pp-tabs .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-products .pp-tabs .tab {
  padding: .5rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: .84rem;
  letter-spacing: .03em;
  cursor: pointer;
}

.page-products .pp-tabs .tab[aria-selected="true"] {
  border-color: var(--line-cyan);
  color: var(--bone);
  background: rgba(61, 224, 208, .1);
}

.page-products .pp-tabs .tab-panel {
  display: block;
}

.page-products .pp-tabs .tab-panel[hidden] {
  display: none;
}

.page-products .pp-spec {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-spec__row {
  display: grid;
  grid-template-columns: minmax(5rem, 7.5rem) minmax(0, 1fr);
  gap: .75rem;
  align-items: baseline;
  padding: .82rem 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-spec__k {
  color: var(--moss);
  font-size: .86rem;
}

.page-products .pp-spec__v {
  color: var(--bone);
  font-size: .95rem;
}

.page-products .pp-note {
  margin: 1.15rem 0 0;
  padding-left: .9rem;
  border-left: 2px solid var(--line-gold);
  color: var(--pp-text);
  font-size: .9rem;
  line-height: 1.75;
}

.page-products .pp-check {
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  padding: clamp(1.25rem, 3vw, 1.85rem);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(61, 224, 208, .07), rgba(15, 46, 38, .55));
}

.page-products .pp-check__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--bone);
}

.page-products .pp-check__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-products .pp-check__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem;
  align-items: baseline;
  color: var(--pp-text);
  font-size: .92rem;
  line-height: 1.7;
}

.page-products .pp-check__mark {
  color: var(--cyan);
  font-size: .78rem;
}

/* ---------- 网络建议 ---------- */
.page-products .pp-net {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .pp-net__list {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-products .pp-net__list li {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.page-products .pp-net__num {
  display: block;
  color: var(--gold-bright);
  font-size: clamp(1rem, 2.4vw, 1.22rem);
  font-weight: 700;
}

.page-products .pp-net__list p {
  margin: .35rem 0 0;
  max-width: 58ch;
  color: var(--pp-text);
  font-size: .92rem;
  line-height: 1.75;
}

.page-products .pp-net__note {
  margin-top: 1.4rem;
}

/* ---------- 增量更新 ---------- */
.page-products .pp-upd {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .pp-metrics {
  display: grid;
  gap: 1px;
  margin: 1.6rem 0 1.2rem;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-products .pp-metric {
  display: grid;
  gap: .4rem;
  padding: 1.05rem 1.15rem;
  background: rgba(7, 26, 21, .88);
}

.page-products .pp-metric__v {
  color: var(--gold);
  font-size: clamp(1.12rem, 2.6vw, 1.45rem);
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .pp-metric__k {
  color: var(--moss);
  font-size: .8rem;
  line-height: 1.6;
}

.page-products .pp-upd__text {
  margin: 0;
  max-width: 64ch;
  color: var(--pp-text);
  font-size: .95rem;
  line-height: 1.8;
}

/* ---------- 双端对照 ---------- */
.page-products .pp-dual {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-dual li {
  display: grid;
  gap: .3rem;
  padding: .95rem 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-dual__k {
  color: var(--moss);
  font-size: .84rem;
}

.page-products .pp-dual__v {
  color: var(--bone);
  font-size: .94rem;
  line-height: 1.7;
}

/* ---------- 故障定位 ---------- */
.page-products .pp-fault {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-products .pp-fault__item {
  padding: 1.2rem 1.3rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(15, 46, 38, .74), rgba(11, 15, 14, .74));
}

.page-products .pp-fault__item h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--gold-bright);
}

.page-products .pp-fault__item p {
  margin: 0;
  color: var(--pp-text);
  font-size: .9rem;
  line-height: 1.75;
}

.page-products .pp-cta {
  display: grid;
  gap: 1.1rem;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  background: linear-gradient(105deg, rgba(245, 165, 36, .14), rgba(15, 46, 38, .85));
}

.page-products .pp-cta p {
  margin: 0;
  max-width: 60ch;
  color: var(--bone);
  font-size: .95rem;
  line-height: 1.75;
}

.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 40rem) {
  .page-products .pp-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-products .pp-dual li {
    grid-template-columns: minmax(6rem, 9rem) minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }

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

  .page-products .pp-fault__item:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 64rem) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
  }

  .page-products .pp-split,
  .page-products .pp-net,
  .page-products .pp-upd {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}
<<<END>>>