.page-products {
  --pp-hair: rgba(90, 104, 102, .55);
  --pp-card: rgba(20, 23, 26, .78);
  --pp-gap: clamp(14px, 2.2vw, 24px);
  color: var(--warm);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-products .breadcrumb {
  margin-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏框景 ---------- */
.pp-hero {
  position: relative;
  margin-top: clamp(14px, 2.4vw, 26px);
  padding: clamp(26px, 4.4vw, 52px) clamp(18px, 3.4vw, 44px) clamp(20px, 3vw, 36px);
  border: 1px solid var(--pp-hair);
  background:
    radial-gradient(120% 140% at 88% -10%, rgba(56, 225, 208, .14), transparent 58%),
    radial-gradient(90% 120% at 0% 112%, rgba(255, 122, 51, .12), transparent 60%),
    linear-gradient(160deg, rgba(18, 59, 51, .94), rgba(12, 31, 27, .97));
  overflow: hidden;
}

.pp-hero::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed rgba(56, 225, 208, .2);
  pointer-events: none;
}

.pp-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 2px, transparent 2px 14px);
  opacity: .45;
}

.pp-hero__frame {
  position: relative;
  z-index: 1;
}

.pp-hero__title {
  margin: .38em 0 .55em;
  max-width: 15em;
  font-size: var(--fs-h1);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.01em;
}

.pp-hero__lead {
  margin: 0 0 clamp(22px, 3vw, 30px);
  max-width: var(--measure);
  color: var(--celadon);
}

.pp-hero__cta {
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.pp-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--pp-hair);
  background: var(--pp-hair);
}

.pp-stats > li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 13px 14px 15px;
  background: #0F2A24;
}

.pp-stats__num {
  font-size: var(--fs-data);
  letter-spacing: .04em;
  color: var(--orange);
}

.pp-stats__label {
  font-size: var(--fs-label);
  letter-spacing: .1em;
  color: var(--celadon);
}

/* ---------- 工具索引带 ---------- */
.pp-legend {
  position: sticky;
  top: calc(var(--ticker-h) + var(--utilbar-h) + 6px);
  z-index: 6;
  display: flex;
  gap: 8px;
  margin: clamp(18px, 2.6vw, 28px) 0 clamp(4px, 1vw, 10px);
  padding: 10px 0;
  overflow-x: auto;
  background: linear-gradient(180deg, rgba(12, 31, 27, .97), rgba(12, 31, 27, .88));
  border-bottom: 1px solid var(--pp-hair);
  scrollbar-width: thin;
}

.pp-legend a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--pp-hair);
  background: rgba(18, 59, 51, .5);
  color: var(--celadon);
  font-size: var(--fs-label);
  letter-spacing: .08em;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.pp-legend a:hover,
.pp-legend a:focus-visible {
  border-color: var(--cyan);
  background: rgba(56, 225, 208, .1);
  color: var(--warm);
}

.pp-legend__coord {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

/* ---------- 章节通用 ---------- */
.pp-sec {
  padding: clamp(34px, 5.5vw, 72px) 0;
  border-top: 1px solid var(--pp-hair);
}

.pp-sec__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.pp-coord {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: var(--fs-label);
  letter-spacing: .16em;
  color: var(--cyan);
}

.pp-coord::after {
  content: "";
  flex: 1 1 auto;
  min-width: 40px;
  height: 1px;
  background: var(--pp-hair);
}

.pp-sec__head h2 {
  margin: 0;
  max-width: 20em;
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.01em;
}

.pp-sec__note {
  margin: 0;
  max-width: var(--measure);
  color: var(--celadon);
  line-height: 1.75;
}

.pp-copy {
  color: var(--warm);
}

.pp-copy p {
  margin: 0 0 1em;
  line-height: 1.8;
}

.pp-copy p:last-child {
  margin-bottom: 0;
}

.pp-copy ul {
  margin: 0 0 1em;
  padding-left: 1.1em;
  line-height: 1.8;
}

.pp-copy li {
  margin-bottom: .35em;
}

.pp-copy a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 225, 208, .4);
}

.pp-copy a:hover,
.pp-copy a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 图文错位 ---------- */
.pp-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  align-items: start;
}

.pp-split__text {
  min-width: 0;
}

.pp-fig {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--pp-hair);
  background: var(--pp-card);
}

.pp-fig img {
  display: block;
  width: 100%;
  height: auto;
  filter: saturate(.72) brightness(.82) contrast(1.06);
}

.pp-fig figcaption {
  margin-top: 10px;
  font-size: var(--fs-label);
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--celadon);
}

.pp-fig__tag {
  position: absolute;
  top: -1px;
  right: -1px;
  padding: 4px 10px;
  background: var(--orange);
  color: #14171A;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
}

.pp-fig--portrait {
  width: 100%;
  max-width: 360px;
}

.pp-fig--wide {
  margin-top: clamp(20px, 3vw, 32px);
}

/* ---------- 折叠组微调 ---------- */
.page-products .fold-group {
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-products .fold__trigger {
  width: 100%;
  text-align: left;
}

/* ---------- 终端矩阵 ---------- */
.pp-svgfig {
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 14px;
  border: 1px solid var(--pp-hair);
  background: linear-gradient(120deg, rgba(18, 59, 51, .55), rgba(20, 23, 26, .6));
}

.pp-svgfig svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 200px;
}

.pp-svgfig figcaption {
  margin-top: 10px;
  font-size: var(--fs-label);
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--celadon);
}

.pp-dev {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pp-dev__item {
  position: relative;
  min-width: 0;
  padding: 16px 16px 18px;
  border: 1px solid var(--pp-hair);
  background: var(--pp-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.pp-dev__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 12px;
  height: 2px;
  background: var(--cyan);
  transition: width var(--dur) var(--ease);
}

.pp-dev__item:hover,
.pp-dev__item:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.pp-dev__item:hover::before,
.pp-dev__item:focus-within::before {
  width: 36px;
}

.pp-dev__coord {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.pp-dev__name {
  margin: 8px 0 6px;
  font-size: var(--fs-h4);
  font-weight: 700;
}

.pp-dev__note {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--celadon);
}

.pp-dev__use {
  margin: 10px 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--celadon);
  opacity: .72;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.pp-dev__item:hover .pp-dev__use,
.pp-dev__item:focus-within .pp-dev__use {
  opacity: 1;
  color: var(--mist);
}

.pp-dev__foot {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: var(--measure);
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--celadon);
}

/* ---------- 三步上手 ---------- */
.pp-progress {
  display: flex;
  gap: 6px;
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.pp-progress span {
  flex: 1 1 0;
  height: 4px;
  background: rgba(56, 225, 208, .35);
}

.pp-progress span:last-child {
  background: var(--orange);
}

.pp-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pp-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 18px;
  padding: 18px;
  border: 1px solid var(--pp-hair);
  background: linear-gradient(90deg, rgba(18, 59, 51, .72), rgba(20, 23, 26, .62));
}

.pp-step__num {
  grid-row: 1 / -1;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--orange);
}

.pp-step__title {
  margin: 0;
  font-size: var(--fs-h4);
  font-weight: 700;
}

.pp-step__text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--celadon);
}

.pp-step .btn {
  justify-self: start;
  margin-top: 12px;
}

.pp-step .fold__panel {
  grid-column: 2;
}

.pp-step .fold__panel p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--celadon);
}

.pp-step .fold__panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 225, 208, .4);
}

/* ---------- 页尾引导 ---------- */
.pp-outro {
  display: grid;
  gap: 18px;
  margin-top: clamp(30px, 5vw, 60px);
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid var(--pp-hair);
  border-left: 3px solid var(--orange);
  background: var(--carbon);
}

.pp-outro__title {
  margin: 0 0 10px;
  font-size: var(--fs-h3);
  font-weight: 800;
  line-height: 1.2;
}

.pp-outro__body p {
  margin: 0;
  max-width: var(--measure);
  color: var(--celadon);
  line-height: 1.8;
}

.pp-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

@media (min-width: 900px) {
  .pp-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(20px, 3vw, 40px);
  }

  .pp-split--flip .pp-split__media {
    order: -1;
  }

  .pp-outro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .pp-outro__links {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .pp-stats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

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

  .pp-step {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .pp-step__num {
    grid-row: auto;
  }

  .pp-step .fold__panel {
    grid-column: auto;
  }
}
<<<END>>>