.page-products {
  --pp-low: #FFC63D;
  --pp-low-line: rgba(255, 198, 61, 0.5);
  --pp-low-fill: rgba(255, 198, 61, 0.12);
  --pp-std: #2FE3EA;
  --pp-std-line: rgba(47, 227, 234, 0.5);
  --pp-std-fill: rgba(47, 227, 234, 0.12);
  --pp-high: #FF3E9A;
  --pp-high-line: rgba(255, 62, 154, 0.5);
  --pp-high-fill: rgba(255, 62, 154, 0.12);
  --pp-surface: rgba(14, 22, 38, 0.88);
  --pp-radius: 26px;
  --pp-gap: clamp(0.9rem, 2.2vw, 1.5rem);
  background: var(--ink-900);
  color: var(--cream);
  overflow-x: hidden;
}

.page-products .pp-inline {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 1px;
}

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

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding: 1.1rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-products .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: rgba(147, 162, 188, 0.5);
}

.page-products .breadcrumb a {
  color: var(--steel);
  text-decoration: none;
}

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

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  padding: clamp(2rem, 5vw, 3.6rem) 0 clamp(2.4rem, 6vw, 4.6rem);
  isolation: isolate;
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  top: -12%;
  right: -14%;
  width: min(62%, 820px);
  height: 124%;
  background: linear-gradient(150deg, rgba(47, 227, 234, 0.15), rgba(255, 62, 154, 0.06) 58%, transparent 82%);
  transform: skewX(-12deg);
  pointer-events: none;
  z-index: -1;
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(147, 162, 188, 0.05) 0 1px, transparent 1px 4px);
  opacity: 0.55;
  pointer-events: none;
  z-index: -1;
}

.page-products .pp-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: center;
}

.page-products .pp-hero__kicker {
  display: inline-block;
  margin: 0 0 0.9rem;
  color: var(--yellow);
}

.page-products .pp-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5.6vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: 0.03em;
  margin: 0 0 1rem;
  color: #F6F2E8;
}

.page-products .pp-hero__title-sub {
  display: block;
  margin-top: 0.45rem;
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .pp-hero__lead {
  max-width: 46ch;
  margin: 0 0 1.4rem;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(242, 237, 224, 0.82);
}

.page-products .pp-hero__tiers {
  list-style: none;
  margin: 0 0 1.6rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-products .pp-hero__tiers li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.page-products .pp-hero__tiers em {
  font-style: normal;
  font-size: 0.82rem;
  color: var(--steel);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-products .pp-hero__figure {
  margin: 0;
  border-radius: var(--pp-radius);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--panel-800);
}

.page-products .media-frame__img,
.page-products .pp-hero__figure img,
.page-products .pp-inline-figure img,
.page-products .pp-specs__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 适配档位胶囊 ---------- */
.page-products .pp-tier {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-products .pp-tier--low {
  color: var(--pp-low);
  border-color: var(--pp-low-line);
  background: var(--pp-low-fill);
}

.page-products .pp-tier--std {
  color: var(--pp-std);
  border-color: var(--pp-std-line);
  background: var(--pp-std-fill);
}

.page-products .pp-tier--high {
  color: var(--pp-high);
  border-color: var(--pp-high-line);
  background: var(--pp-high-fill);
}

/* ---------- 概览 ---------- */
.page-products .pp-overview {
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(1.2rem, 3vw, 2rem);
}

.page-products .pp-tree {
  margin: 1.4rem 0 1.8rem;
  padding: 0.6rem 0;
}

.page-products .pp-tree__svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-products .pp-tree__trunk,
.page-products .pp-tree__branch {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}

.page-products .pp-tree__trunk {
  stroke: rgba(147, 162, 188, 0.4);
}

.page-products .pp-tree__branch {
  stroke: rgba(47, 227, 234, 0.55);
  stroke-dasharray: 7 5;
}

.page-products .pp-tree__node {
  fill: var(--cyan);
}

.page-products .pp-tree__node--end {
  fill: var(--orange);
}

.page-products .pp-lanes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .pp-lane {
  position: relative;
  padding: 1.25rem 1.3rem 1.35rem;
  border: 1px solid var(--line-dark);
  border-radius: var(--pp-radius);
  background: linear-gradient(180deg, rgba(20, 31, 51, 0.72), rgba(6, 10, 19, 0.6));
}

.page-products .pp-lane__idx {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  color: var(--steel);
  margin-bottom: 0.5rem;
}

.page-products .pp-lane__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: #F6F2E8;
}

.page-products .pp-lane p {
  margin: 0 0 0.9rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(242, 237, 224, 0.74);
}

.page-products .pp-lane--a {
  border-top: 2px solid var(--pp-std-line);
}

.page-products .pp-lane--b {
  border-top: 2px solid var(--pp-low-line);
}

.page-products .pp-lane--c {
  border-top: 2px solid var(--pp-high-line);
}

/* ---------- 折叠分区 ---------- */
.page-products .pp-blocks {
  padding: clamp(1.2rem, 3vw, 2rem) 0 clamp(2.4rem, 6vw, 4rem);
}

.page-products .pp-block {
  display: block;
  border: 1px solid var(--line-dark);
  border-radius: var(--pp-radius);
  background: var(--pp-surface);
  overflow: hidden;
}

.page-products .pp-block + .pp-block {
  margin-top: 1rem;
}

.page-products .pp-block__head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  padding: 1.05rem clamp(1rem, 2.6vw, 1.7rem);
  cursor: pointer;
  list-style: none;
  background: linear-gradient(90deg, rgba(47, 227, 234, 0.06), transparent 62%);
  transition: background var(--dur) var(--ease);
}

.page-products .pp-block__head::-webkit-details-marker {
  display: none;
}

.page-products .pp-block__head:hover {
  background: linear-gradient(90deg, rgba(47, 227, 234, 0.12), transparent 70%);
}

.page-products .pp-block__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .pp-block__idx {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-products .pp-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  letter-spacing: 0.04em;
  color: #F6F2E8;
}

.page-products .pp-block__hint {
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-products .pp-block__chev {
  margin-left: auto;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-pill);
  position: relative;
}

.page-products .pp-block__chev::before,
.page-products .pp-block__chev::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
}

.page-products .pp-block__chev::before {
  width: 9px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}

.page-products .pp-block__chev::after {
  width: 1.5px;
  height: 9px;
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease);
}

.page-products .pp-block[open] .pp-block__chev::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-products .pp-block__body {
  padding: 0 clamp(1rem, 2.6vw, 1.7rem) clamp(1.3rem, 3vw, 2rem);
}

.page-products .pp-block__lead {
  margin: 0 0 1.1rem;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: rgba(242, 237, 224, 0.8);
}

.page-products .pp-block__foot {
  margin: 1.2rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-products .pp-block__body--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  align-items: center;
}

.page-products .pp-block__text p {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  line-height: 1.78;
  color: rgba(242, 237, 224, 0.8);
}

.page-products .pp-block__text p:last-child {
  margin-bottom: 0;
}

/* ---------- 筛选条 ---------- */
.page-products .pp-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.1rem;
}

.page-products .pp-chip {
  min-height: 36px;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-dark);
  background: rgba(6, 10, 19, 0.7);
  color: var(--steel);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .pp-chip:hover {
  color: var(--cream);
  border-color: var(--line-cyan);
}

.page-products .pp-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .pp-chip[aria-pressed="true"] {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 资源卡片带 ---------- */
.page-products .pp-res-list {
  list-style: none;
  display: flex;
  gap: 0.85rem;
  margin: 0;
  padding: 0.25rem 0.25rem 1rem;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-res {
  flex: 0 0 clamp(240px, 74vw, 320px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(20, 31, 51, 0.85), rgba(6, 10, 19, 0.72));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .pp-res:hover {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
}

.page-products .pp-res__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.6rem;
}

.page-products .pp-res__ver {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-products .pp-res__size {
  font-size: 0.76rem;
  color: var(--steel);
}

.page-products .pp-res__title {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: #F6F2E8;
}

.page-products .pp-res__desc {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: rgba(242, 237, 224, 0.72);
}

.page-products .pp-res__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.55rem;
}

.page-products .pp-res__freq {
  margin: 0;
  color: var(--steel);
}

.page-products .pp-inline-figure {
  margin: 1.3rem 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--panel-800);
}

.page-products .pp-inline-figure--tight {
  margin: 0;
}

.page-products .annot--warn {
  color: var(--yellow);
  border-left: 2px solid var(--line-warn);
  padding-left: 0.7rem;
  margin: 0 0 1.1rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

/* ---------- 适配清单 ---------- */
.page-products .pp-specs {
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(2.2rem, 5vw, 3.4rem);
  background: linear-gradient(180deg, rgba(14, 22, 38, 0.6), rgba(6, 10, 19, 0));
}

.page-products .pp-specs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  margin-top: 1.5rem;
}

.page-products .pp-spec {
  padding: 1.3rem 1.25rem 1.4rem;
  border: 1px solid var(--line-dark);
  border-radius: var(--pp-radius);
  background: var(--panel-800);
}

.page-products .pp-spec--low {
  border-top: 2px solid var(--pp-low-line);
}

.page-products .pp-spec--std {
  border-top: 2px solid var(--pp-std-line);
}

.page-products .pp-spec--high {
  border-top: 2px solid var(--pp-high-line);
}

.page-products .pp-spec__title {
  margin: 0.85rem 0 1rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  color: #F6F2E8;
}

.page-products .pp-spec__list {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 0.8rem;
  font-size: 0.85rem;
  line-height: 1.65;
}

.page-products .pp-spec__list dt {
  color: var(--steel);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-products .pp-spec__list dd {
  margin: 0;
  color: rgba(242, 237, 224, 0.85);
}

.page-products .pp-specs__figure {
  margin: 1.6rem 0 0;
  border-radius: var(--pp-radius);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--panel-800);
}

/* ---------- 步骤 ---------- */
.page-products .pp-steps-wrap {
  padding: clamp(1.6rem, 4vw, 2.6rem) 0 clamp(2.4rem, 6vw, 4rem);
}

.page-products .pp-steps-panel {
  padding: clamp(1.4rem, 3.6vw, 2.6rem);
  border-radius: var(--pp-radius);
  color: var(--ink-on-cream);
}

.page-products .pp-steps-panel .section-head__index {
  color: var(--orange);
}

.page-products .pp-steps-panel__head .section-head__title {
  color: var(--ink-on-cream);
}

.page-products .pp-steps {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-products .pp-steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--cream-line);
}

.page-products .pp-steps__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pp-steps__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(242, 98, 60, 0.5);
  color: var(--orange);
  font-size: 0.82rem;
}

.page-products .pp-steps__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--ink-on-cream);
}

.page-products .pp-steps__body p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: rgba(17, 23, 34, 0.78);
}

.page-products .pp-steps__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

/* ---------- 结尾 ---------- */
.page-products .pp-outro {
  padding: 0 0 clamp(2.4rem, 6vw, 4rem);
}

.page-products .pp-outro__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1.1rem, 3vw, 1.8rem);
  border: 1px solid var(--line-dark);
  border-radius: var(--pp-radius);
  background: linear-gradient(120deg, rgba(47, 227, 234, 0.08), rgba(255, 62, 154, 0.05));
}

.page-products .pp-outro__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(242, 237, 224, 0.82);
}

/* ---------- 入场 ---------- */
.page-products .pp-reveal {
  opacity: 1;
}

.page-products.has-js .pp-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products.has-js .pp-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pp-hero__tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-hero__tiers li {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

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

  .page-products .pp-lanes > :last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

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

  .page-products .pp-lanes > :last-child {
    grid-column: auto;
  }

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

  .page-products .pp-block__body--split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(1.6rem, 4vw, 3rem);
  }

  .page-products .pp-block__body--reverse .pp-block__text {
    order: 2;
  }

  .page-products .pp-block__body--reverse .pp-inline-figure {
    order: 1;
  }

  .page-products .pp-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.4rem, 3vw, 2.4rem);
  }

  .page-products .pp-steps__item:nth-last-child(-n + 1) {
    grid-column: 1 / -1;
    border-bottom: 0;
    padding-bottom: 0;
  }
}

@media (min-width: 1180px) {
  .page-products .pp-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-products .pp-hero__lead {
    font-size: 1.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products.has-js .pp-reveal {
    transform: none;
    transition: opacity 120ms linear;
  }

  .page-products .pp-res:hover {
    transform: none;
  }

  .page-products .pp-block__chev::after {
    transition: none;
  }
}
<<<END>>>