.page-products {
  --pp-radius: 14px;
  --pp-radius-lg: 22px;
  --pp-card-gap: 1rem;
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-products .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--brown);
  margin-bottom: 1.5rem;
}
.page-products .crumbs-sep {
  color: var(--line-strong);
}
.page-products .crumbs-now {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  padding: 1.75rem 0 2.75rem;
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 62%, var(--mist) 100%);
  border-bottom: 1px solid var(--line);
}
.page-products .pp-hero-grid {
  display: grid;
  gap: 2rem;
}
.page-products .pp-hero-main h1 {
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  margin: .6rem 0 1rem;
}
.page-products .pp-lead {
  max-width: var(--measure);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--ink);
  margin: 0;
}
.page-products .pp-lead--tight {
  margin-bottom: 1.5rem;
  color: var(--brown);
  font-size: 1rem;
}
.page-products .pp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.6rem;
}
.page-products .pp-hero-side {
  display: grid;
  gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.page-products .pp-side-card {
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--pp-radius);
  background: var(--mist);
  padding: 1.1rem 1.15rem;
}
.page-products .pp-side-card--mint {
  border-left-color: var(--mint);
}
.page-products .pp-side-num {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--blue);
  margin: 0 0 .35rem;
}
.page-products .pp-side-card--mint .pp-side-num {
  color: var(--green-ink);
}
.page-products .pp-side-label {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--brown);
}

/* ---------- 总览 ---------- */
.page-products .pp-overview-figure {
  margin: 1.75rem 0 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius-lg);
  overflow: hidden;
  background: linear-gradient(140deg, var(--blue-soft) 0%, var(--mint-soft) 100%);
}
.page-products .pp-overview-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-products .pp-figcap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding: .65rem .9rem;
  font-size: 12px;
  color: var(--brown);
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.page-products .pp-band {
  display: flex;
  gap: var(--pp-card-gap);
  list-style: none;
  margin: 0;
  padding: .35rem .35rem 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-products .pp-band-item {
  flex: 0 0 84%;
  min-width: 0;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.3rem 1.2rem 1.35rem;
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  border-radius: var(--pp-radius);
  background: var(--paper);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}
.page-products .pp-band-item--mint {
  border-top-color: var(--mint);
}
.page-products .pp-band-item--brick {
  border-top-color: var(--brick);
}
.page-products .pp-band-item--orange {
  border-top-color: var(--orange);
}
.page-products .pp-band-item:hover,
.page-products .pp-band-item:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-low);
}
.page-products .pp-band-idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--brick);
}
.page-products .pp-band-item h3 {
  margin: .1rem 0 0;
  font-size: 1.15rem;
  line-height: 1.35;
}
.page-products .pp-band-for {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--brown);
}
.page-products .pp-band-meta {
  margin: .35rem 0 0;
  display: grid;
  gap: .6rem;
  padding-top: .7rem;
  border-top: 1px solid var(--line);
}
.page-products .pp-band-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--brown);
  margin-bottom: .15rem;
}
.page-products .pp-band-meta dd {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--ink);
}
.page-products .pp-band-link {
  margin-top: auto;
  padding-top: .85rem;
  font-size: .875rem;
  font-weight: 700;
  color: var(--blue);
  text-decoration: none;
  border-top: 1px solid var(--line);
}
.page-products .pp-band-link::after {
  content: " →";
}
.page-products .pp-band-link:hover {
  color: var(--green-ink);
}

.page-products .pp-dots {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  list-style: none;
  margin: .25rem 0 0;
  padding: 0;
}
.page-products .pp-dots a {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem .8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--brown);
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}
.page-products .pp-dot-num {
  color: var(--blue);
}
.page-products .pp-dots a:hover,
.page-products .pp-dots a:focus-visible {
  border-color: var(--mint);
  background: var(--mint-soft);
  color: var(--ink);
}

/* ---------- 产品线详情 ---------- */
.page-products .pp-line {
  padding: 3rem 0;
}
.page-products .pp-line-grid {
  display: grid;
  gap: 1.75rem;
}
.page-products .pp-line-side {
  border-left: 3px solid var(--blue);
  padding-left: 1rem;
}
.page-products .pp-line-idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--blue);
}
.page-products .pp-line-side h2 {
  margin: .35rem 0 .5rem;
  font-size: clamp(1.5rem, 4.4vw, 2rem);
  line-height: 1.25;
}
.page-products .pp-line-tag {
  margin: 0 0 1.1rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--brown);
  max-width: 22em;
}
.page-products .pp-line-figure {
  margin: 0 0 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  overflow: hidden;
  background: linear-gradient(150deg, var(--mist) 0%, var(--mint-soft) 100%);
}
.page-products .pp-line-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .pp-line-figure--narrow {
  max-width: 340px;
  margin-left: auto;
  margin-right: auto;
}

.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.35rem;
}
.page-products .pp-step {
  position: relative;
  padding-left: 2.9rem;
}
.page-products .pp-step::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 2.1rem;
  bottom: -1.4rem;
  width: 1px;
  background: linear-gradient(180deg, var(--line-strong), rgba(201, 211, 219, 0));
}
.page-products .pp-step:last-child::before {
  content: none;
}
.page-products .pp-step-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 29px;
  height: 29px;
  margin: 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brown);
}
.page-products .pp-step h3 {
  margin: 0 0 .35rem;
  font-size: 1.0625rem;
  line-height: 1.4;
}
.page-products .pp-step p:not(.pp-step-num) {
  max-width: 34em;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--brown);
}

.page-products .pp-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  margin-top: 2rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
}
.page-products .pp-fact {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.page-products .pp-fact-num {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.5vw, 1.9rem);
  line-height: 1.1;
  color: var(--orange);
  letter-spacing: -.01em;
}
.page-products .pp-fact-label {
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--brown);
}

/* ---------- 版本演进 ---------- */
.page-products .pp-version {
  display: grid;
  gap: 2rem;
}
.page-products .pp-version-meta {
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: var(--paper);
  padding: 1.4rem 1.3rem;
}
.page-products .pp-version-no {
  margin: .35rem 0 .5rem;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--green-ink);
}
.page-products .pp-version-note {
  margin: 0;
  font-size: .8125rem;
  letter-spacing: .04em;
  line-height: 1.75;
  color: var(--brown);
}
.page-products .pp-version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}
.page-products .pp-version-item {
  border-left: 3px solid var(--mint);
  padding: .15rem 0 .15rem 1.1rem;
}
.page-products .pp-version-tag {
  margin: 0 0 .3rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--brick);
}
.page-products .pp-version-item h3 {
  margin: 0 0 .35rem;
  font-size: 1.0625rem;
}
.page-products .pp-version-item p:not(.pp-version-tag) {
  margin: 0;
  max-width: 36em;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--brown);
}

/* ---------- 场景与流程 ---------- */
.page-products .pp-scenes {
  list-style: none;
  margin: 1.75rem 0 2.5rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-products .pp-scene {
  border: 1px solid var(--line);
  border-radius: var(--pp-radius);
  background: var(--paper);
  padding: 1.15rem 1.2rem;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.page-products .pp-scene:hover {
  border-color: var(--blue-soft);
  transform: translateY(-2px);
}
.page-products .pp-scene h3 {
  margin: 0 0 .4rem;
  font-size: 1.0625rem;
}
.page-products .pp-scene-pick {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--blue);
}
.page-products .pp-scene p:last-child {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--brown);
}

.page-products .pp-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  counter-reset: ppflow;
}
.page-products .pp-flow-item {
  position: relative;
  padding-left: 3.25rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}
.page-products .pp-flow-num {
  position: absolute;
  left: 0;
  top: 1rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--blue);
}
.page-products .pp-flow-item h3 {
  margin: 0 0 .35rem;
  font-size: 1.0625rem;
}
.page-products .pp-flow-item p:not(.pp-flow-num) {
  margin: 0;
  max-width: 34em;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--brown);
}

/* ---------- 结尾动作 ---------- */
.page-products .pp-closing {
  padding-bottom: 3.5rem;
}
.page-products .pp-closing-box {
  border: 1px solid var(--line);
  border-radius: var(--pp-radius-lg);
  padding: 1.75rem 1.35rem;
  background:
    linear-gradient(135deg, var(--blue-soft) 0%, var(--mint-soft) 78%);
}
.page-products .pp-closing-box h2 {
  margin: .5rem 0 .75rem;
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  line-height: 1.25;
}
.page-products .pp-closing-box > p:not(.coord):not(.pp-closing-note) {
  margin: 0;
  max-width: 40em;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink);
}
.page-products .pp-closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin: 1.4rem 0 1.6rem;
}
.page-products .pp-contact {
  list-style: none;
  margin: 0;
  padding: 1.15rem 0 0;
  border-top: 1px solid rgba(22, 32, 43, .12);
  display: grid;
  gap: .7rem;
}
.page-products .pp-contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
}
.page-products .pp-contact-val {
  font-family: var(--font-mono);
  font-size: .875rem;
  color: var(--ink);
  word-break: break-all;
}
.page-products .pp-closing-note {
  margin: 1.1rem 0 0;
  font-size: .8125rem;
  line-height: 1.75;
  color: var(--brown);
}

/* ---------- 断点：平板 ---------- */
@media (min-width: 700px) {
  .page-products .pp-hero {
    padding: 2.25rem 0 3rem;
  }
  .page-products .pp-band-item {
    flex: 0 0 46%;
  }
  .page-products .pp-band-item--blue,
  .page-products .pp-band-item--brick {
    flex: 0 0 54%;
  }
  .page-products .pp-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-version-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-closing-box {
    padding: 2.5rem 2.25rem;
  }
}

/* ---------- 断点：桌面 ---------- */
@media (min-width: 960px) {
  .page-products .pp-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: end;
  }
  .page-products .pp-hero-side {
    grid-template-columns: 1fr;
  }
  .page-products .pp-band-item {
    flex: 0 0 30%;
  }
  .page-products .pp-band-item--blue {
    flex: 0 0 36%;
  }
  .page-products .pp-band-item--brick {
    flex: 0 0 34%;
  }
  .page-products .pp-line {
    padding: 4rem 0;
  }
  .page-products .pp-line-grid {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
  }
  .page-products .pp-line-side {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }
  .page-products .pp-version {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }
  .page-products .pp-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
  }
  .page-products .pp-flow-item {
    border-top: 2px solid var(--blue-soft);
  }
}

@media (min-width: 1200px) {
  .page-products .pp-band-item {
    flex: 0 0 26%;
  }
  .page-products .pp-band-item--blue {
    flex: 0 0 32%;
  }
  .page-products .pp-band-item--brick {
    flex: 0 0 30%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-band-item,
  .page-products .pp-scene,
  .page-products .pp-dots a {
    transition: none;
  }
  .page-products .pp-band-item:hover,
  .page-products .pp-band-item:focus-within,
  .page-products .pp-scene:hover {
    transform: none;
  }
}
<<<END>>>