.page-products {
  --runway-cut: 22px;
  --kpi-line: var(--line);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-top: clamp(20px, 3vw, 32px);
}
.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text-2);
}
.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--edge);
}
.page-products .breadcrumb a {
  color: var(--text-2);
  text-decoration: none;
}
.page-products .breadcrumb a:hover { color: var(--cyan); }
.page-products .breadcrumb [aria-current="page"] { color: var(--cyan-soft); }

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  margin-top: clamp(18px, 3vw, 30px);
  min-height: clamp(420px, 62vh, 660px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}
.page-products .prod-hero-media {
  position: absolute;
  inset: 0;
}
.page-products .prod-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.55) contrast(1.12);
}
.page-products .prod-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 16, 13, .3) 0%, rgba(4, 16, 13, .88) 68%, var(--ink) 100%),
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(23, 56, 47, .5) 79px 80px);
  pointer-events: none;
}
.page-products .prod-hero-body {
  position: relative;
  z-index: 1;
  padding-bottom: clamp(34px, 5vw, 56px);
  padding-top: clamp(70px, 12vw, 140px);
}
.page-products .prod-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-cn);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.05;
  font-size: clamp(30px, 5.6vw, 62px);
  color: var(--text);
  max-width: 18ch;
}
.page-products .prod-hero .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.85;
  color: var(--text-2);
}
.page-products .prod-kpis {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  background: var(--kpi-line);
  border: 1px solid var(--kpi-line);
}
.page-products .prod-kpis li {
  background: rgba(10, 33, 27, .86);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-products .k-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: .02em;
}
.page-products .k-lab {
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: .02em;
}

/* ---------- 快速跳转条 ---------- */
.page-products .prod-jump {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(4, 16, 13, .9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.page-products .prod-jump-inner {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 10px 0;
}
.page-products .prod-jump-inner::-webkit-scrollbar { display: none; }
.page-products .prod-jump a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  color: var(--text-2);
  text-decoration: none;
  font-size: 13.5px;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.page-products .prod-jump a .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--edge);
  letter-spacing: .04em;
}
.page-products .prod-jump a:hover {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}
.page-products .prod-jump a:hover .num { color: rgba(4, 16, 13, .62); }

/* ---------- 栏目总览 ---------- */
.page-products .prod-index {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-products .prod-index li { border-bottom: 1px solid var(--line); }
.page-products .prod-index a {
  display: grid;
  grid-template-columns: 46px 1fr;
  grid-template-areas:
    "num name"
    "num desc";
  align-items: baseline;
  gap: 4px 14px;
  padding: 18px 12px 18px 0;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: background .22s var(--ease), padding-left .22s var(--ease);
}
.page-products .prod-index a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width .3s var(--ease);
}
.page-products .prod-index a:hover {
  background: rgba(0, 240, 192, .05);
  padding-left: 12px;
}
.page-products .prod-index a:hover::after { width: 100%; }
.page-products .pi-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: .04em;
  padding-top: 2px;
}
.page-products .pi-name {
  grid-area: name;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.01em;
}
.page-products .pi-desc {
  grid-area: desc;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-2);
}
.page-products .pi-go { display: none; }

/* ---------- 跑道式通栏 ---------- */
.page-products .runway-sec { padding-top: 0; }
.page-products .runway {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  overflow: hidden;
}
.page-products .runway::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-soft) 34%, transparent 78%);
}
.page-products .runway-media {
  position: relative;
  min-height: 200px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.page-products .runway-media img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  opacity: .62;
  filter: saturate(.6) contrast(1.08);
  display: block;
  transition: opacity .35s var(--ease), transform .6s var(--ease);
}
.page-products .runway:hover .runway-media img {
  opacity: .78;
  transform: scale(1.02);
}
.page-products .runway-body {
  padding: clamp(22px, 3.6vw, 42px);
}
.page-products .runway-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.page-products .runway-idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 16px 0 12px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .06em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 11px) 100%, 0 100%);
}
.page-products .runway-head .eyebrow { margin: 0; }
.page-products .runway h2 {
  margin: 0 0 16px;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(21px, 2.6vw, 31px);
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--text);
  max-width: 22ch;
}
.page-products .runway-body p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-2);
  max-width: 66ch;
}
.page-products .runway-body p:last-of-type { margin-bottom: 0; }
.page-products .runway-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.page-products .rail-link {
  margin-top: 16px;
  font-size: 14px;
}
.page-products .rail-link a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 240, 192, .35);
  padding-bottom: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.page-products .rail-link a:hover {
  color: var(--cyan-soft);
  border-color: var(--cyan-soft);
}

/* ---------- 多端适配 ---------- */
.page-products .adapt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 44px);
  margin-top: 34px;
  align-items: start;
}
.page-products .adapt-copy p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-2);
}
.page-products .adapt-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .adapt-list li {
  background: var(--ink);
  padding: 15px 14px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-2);
  display: flex;
  align-items: baseline;
  gap: 9px;
}
.page-products .adapt-list .num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 22px;
  color: var(--cyan);
  line-height: 1;
  flex: 0 0 auto;
}
.page-products .adapt-figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
}
.page-products .adapt-figure img {
  width: 100%;
  height: auto;
  display: block;
  opacity: .8;
  filter: saturate(.55) contrast(1.1);
}
.page-products .adapt-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-2);
  border-top: 1px solid var(--line);
  letter-spacing: .01em;
}

/* ---------- 起步引导 ---------- */
.page-products .start-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: clamp(26px, 4vw, 44px);
  background: var(--stripe);
  border: 1px solid var(--edge);
  position: relative;
  overflow: hidden;
}
.page-products .start-band::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(0, 240, 192, .22);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  pointer-events: none;
}
.page-products .start-band h2 {
  margin: 8px 0 12px;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--text);
}
.page-products .start-band p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
  max-width: 62ch;
  position: relative;
  z-index: 1;
}
.page-products .start-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: start;
}

/* ---------- 中屏 ---------- */
@media (min-width: 640px) {
  .page-products .prod-kpis {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .prod-index a {
    grid-template-columns: 56px 1fr auto;
    grid-template-areas:
      "num name go"
      "num desc go";
  }
  .page-products .pi-go {
    display: block;
    grid-area: go;
    align-self: center;
    font-family: var(--font-mono);
    font-size: 18px;
    color: var(--edge);
    transition: color .2s var(--ease), transform .25s var(--ease);
  }
  .page-products .prod-index a:hover .pi-go {
    color: var(--cyan);
    transform: translateX(5px);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-products .runway {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    grid-template-areas: "body media";
    align-items: stretch;
  }
  .page-products .runway-body { grid-area: body; }
  .page-products .runway-media {
    grid-area: media;
    min-height: 100%;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }
  .page-products .runway-media img { min-height: 100%; }
  .page-products .runway--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    grid-template-areas: "media body";
  }
  .page-products .runway--flip .runway-media {
    border-left: 0;
    border-right: 1px solid var(--line);
  }
  .page-products .adapt-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
  .page-products .start-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
  .page-products .start-band-actions { justify-content: flex-end; }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .runway-media img,
  .page-products .prod-index a,
  .page-products .pi-go,
  .page-products .prod-jump a { transition: none; }
  .page-products .runway:hover .runway-media img { transform: none; }
}
<<<END>>>