.page-products {
  --pp-rail-w: 244px;
  --pp-gap: clamp(28px, 4vw, 56px);
  display: block;
  background: var(--deep-ink);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-products .pp-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate-500);
}
.page-products .pp-crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-products .pp-crumbs__item + .pp-crumbs__item::before {
  content: "/";
  color: var(--line-steel);
}
.page-products .pp-crumbs__item a {
  color: var(--ice-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s ease, color .18s ease;
}
.page-products .pp-crumbs__item a:hover,
.page-products .pp-crumbs__item a:focus-visible {
  color: var(--glow-cyan);
  border-bottom-color: var(--glow-cyan);
}
.page-products .pp-crumbs__item[aria-current="page"] {
  color: var(--muted);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 4.5vw, 52px) 0 clamp(40px, 6vw, 76px);
  background:
    radial-gradient(120% 140% at 88% 0%, rgba(43, 227, 210, .16) 0%, rgba(43, 227, 210, 0) 58%),
    linear-gradient(152deg, #061726 0%, #0E2E47 64%, #123a58 100%);
  border-bottom: 1px solid var(--line-steel);
}
.page-products .pp-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -16%;
  width: 54%;
  height: 168%;
  background: linear-gradient(180deg, rgba(23, 73, 110, .55), rgba(6, 23, 38, 0) 74%);
  transform: rotate(13deg);
  pointer-events: none;
}
.page-products .pp-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(46%, 520px);
  height: 3px;
  background: linear-gradient(90deg, var(--signal-orange), rgba(255, 138, 61, 0));
  pointer-events: none;
}
.page-products .pp-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}
.page-products .pp-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-narrow);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(30px, 6vw, 56px);
  line-height: 1.1;
  color: #EAF4F6;
}
.page-products .pp-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, .9vw + 13px, 17px);
  line-height: 1.8;
  color: #A9C1CF;
}
.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 首屏数据栏 */
.page-products .pp-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-steel);
  border: 1px solid var(--line-steel);
  box-shadow: var(--shadow-s);
}
.page-products .pp-spec {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 14px;
  background: rgba(6, 23, 38, .88);
}
.page-products .pp-spec__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(21px, 2.4vw, 29px);
  font-weight: 700;
  line-height: 1;
  color: var(--signal-orange);
}
.page-products .pp-spec__label {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 主体：左侧索引 + 右侧内容 ---------- */
.page-products .pp-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  padding-top: clamp(34px, 5vw, 68px);
  padding-bottom: clamp(52px, 7vw, 104px);
}

.page-products .pp-rail {
  border: 1px solid var(--line-steel);
  background: linear-gradient(180deg, rgba(14, 46, 71, .92), rgba(6, 23, 38, .92));
  padding: 16px 14px 18px;
}
.page-products .pp-rail__title {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-steel);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate-500);
}
.page-products .pp-rail__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .pp-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 8px 8px 10px;
  border-left: 2px solid transparent;
  text-decoration: none;
  color: #B9CDD9;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}
.page-products .pp-rail__link:hover,
.page-products .pp-rail__link:focus-visible {
  color: var(--ice-cyan);
  background: rgba(43, 227, 210, .06);
}
.page-products .pp-rail__link.is-active {
  color: var(--glow-cyan);
  border-left-color: var(--glow-cyan);
  background: rgba(43, 227, 210, .08);
}
.page-products .pp-rail__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--slate-500);
}
.page-products .pp-rail__link.is-active .pp-rail__idx {
  color: var(--glow-cyan);
}
.page-products .pp-rail__label {
  font-size: 14px;
  line-height: 1.45;
}

/* ---------- 内容区块 ---------- */
.page-products .pp-content {
  min-width: 0;
}
.page-products .pp-section {
  padding-bottom: clamp(40px, 5.5vw, 76px);
  margin-bottom: clamp(40px, 5.5vw, 76px);
  border-bottom: 1px solid var(--line-steel);
}
.page-products .pp-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}
.page-products .pp-section .section-head {
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-products .pp-prose p {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: #CBDCE5;
}
.page-products .pp-prose p:last-child {
  margin-bottom: 0;
}
.page-products .pp-prose a {
  color: var(--glow-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 210, .45);
}
.page-products .pp-prose a:hover,
.page-products .pp-prose a:focus-visible {
  border-bottom-color: var(--glow-cyan);
}

/* 图文分栏 */
.page-products .pp-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

/* 要点列表 */
.page-products .pp-points {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 24px 0 0;
  padding: 1px;
  list-style: none;
  background: var(--line-steel);
  border: 1px solid var(--line-steel);
}
.page-products .pp-point {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 14px;
  background: var(--tide-blue);
}
.page-products .pp-point__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--glow-cyan);
}
.page-products .pp-point__v {
  font-size: 14.5px;
  line-height: 1.65;
  color: #D5E4EC;
}

/* 图 */
.page-products .pp-figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
  position: relative;
}
.page-products .pp-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-steel);
  background: linear-gradient(140deg, var(--harbor-blue), var(--deep-ink));
}
.page-products .pp-figure--tall img {
  aspect-ratio: 2 / 3;
}
.page-products .pp-figure--wide img {
  aspect-ratio: 21 / 9;
}
.page-products .pp-figure__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate-500);
}

/* 筛选 chips */
.page-products .pp-filters {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-steel);
  background: linear-gradient(160deg, rgba(14, 46, 71, .9), rgba(6, 23, 38, .9));
}
.page-products .pp-filter__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--slate-500);
}
.page-products .pp-filter__opts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-products .pp-filter__note {
  margin: 4px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-steel);
  font-size: 14.5px;
  line-height: 1.75;
  color: #A9C1CF;
}

/* 纸色长文区 */
.page-products .pp-section--paper {
  --text: var(--ink-900);
  --muted: var(--slate-500);
  --line: var(--mint-line);
  --accent: #0E7C74;
  --hot: var(--ember-orange);
  background: var(--paper-warm);
  color: var(--ink-900);
  border: 1px solid var(--mint-line);
  padding: clamp(22px, 3.4vw, 42px);
}
.page-products .pp-section--paper .section-head__idx {
  color: #0E7C74;
}
.page-products .pp-section--paper .section-head__title {
  color: var(--ink-900);
}
.page-products .pp-section--paper .section-head__lead {
  color: var(--slate-500);
}
.page-products .pp-section--paper .pp-prose p {
  color: #22333F;
}
.page-products .pp-section--paper .pp-figure img {
  border-color: var(--mint-line);
  background: linear-gradient(140deg, #E7E0D2, #CFD8D3);
}
.page-products .pp-section--paper .pp-figure__cap {
  color: var(--slate-500);
}

/* 四步路径 */
.page-products .pp-tree {
  position: relative;
  margin: 0;
  padding: 0 0 0 30px;
  list-style: none;
}
.page-products .pp-tree::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--glow-cyan), rgba(43, 227, 210, .12));
}
.page-products .pp-tree__step {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 0 0 clamp(24px, 3vw, 34px);
}
.page-products .pp-tree__step:last-child {
  padding-bottom: 0;
}
.page-products .pp-tree__idx {
  position: absolute;
  left: -30px;
  top: 2px;
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border: 1px solid var(--glow-cyan);
  border-radius: 50%;
  background: var(--deep-ink);
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--glow-cyan);
}
.page-products .pp-tree__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(17px, 1.4vw + 12px, 21px);
  line-height: 1.35;
  color: #EAF4F6;
}
.page-products .pp-tree__text {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: #A9C1CF;
}
.page-products .pp-tree__text a {
  color: var(--glow-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 210, .45);
}
.page-products .pp-tree__text a:hover,
.page-products .pp-tree__text a:focus-visible {
  border-bottom-color: var(--glow-cyan);
}

/* 卡片节奏点 */
.page-products .pp-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-steel);
  border: 1px solid var(--line-steel);
}
.page-products .pp-card {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--tide-blue);
}
.page-products .pp-card__title {
  margin: 0 0 10px;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--glow-cyan);
}
.page-products .pp-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C3D7E1;
}
.page-products .pp-more {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: #A9C1CF;
}
.page-products .pp-more a {
  color: var(--glow-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 210, .45);
}
.page-products .pp-more a:hover,
.page-products .pp-more a:focus-visible {
  border-bottom-color: var(--glow-cyan);
}

/* 场景 + 行动 */
.page-products .pp-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-products .pp-scene {
  padding: 16px 18px;
  border: 1px solid var(--line-steel);
  border-left: 3px solid var(--signal-orange);
  background: rgba(14, 46, 71, .55);
}
.page-products .pp-scene__time {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--signal-orange);
}
.page-products .pp-scene__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C3D7E1;
}
.page-products .pp-cta {
  margin-top: clamp(24px, 3.4vw, 36px);
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-steel);
  background:
    linear-gradient(120deg, rgba(43, 227, 210, .10) 0%, rgba(6, 23, 38, 0) 60%),
    var(--tide-blue);
}
.page-products .pp-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: #D5E4EC;
}
.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

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

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }
  .page-products .pp-specs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-split {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  }
  .page-products .pp-filters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-filter__note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1040px) {
  .page-products .pp-body {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pp-rail {
    position: sticky;
    top: 88px;
  }
  .page-products .pp-split {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: clamp(28px, 3vw, 44px);
  }
}

@media (min-width: 1280px) {
  .page-products .pp-prose p {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-crumbs__item a,
  .page-products .pp-rail__link {
    transition: none;
  }
}