.page-products {
  --prod-lead: #C4D1E4;
  --prod-muted: #93A6C2;
  --prod-gap: clamp(14px, 2.2vw, 24px);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(40px, 7vw, 88px);
  overflow-x: clip;
}

@media (min-width: 1024px) {
  .page-products {
    padding-left: var(--rail-w);
  }
}

.page-products img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.2;
  margin: 0;
}

.page-products p {
  margin: 0;
}

.page-products .figure-frame__img {
  position: relative;
  overflow: hidden;
}

.page-products .figure-frame__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .prod-link {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.prod-hero {
  padding-top: clamp(20px, 3.4vw, 40px);
  padding-bottom: clamp(26px, 4vw, 52px);
}

.prod-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.prod-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

@media (min-width: 900px) {
  .prod-hero__grid {
    grid-template-columns: 7fr 5fr;
  }
}

.prod-hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  letter-spacing: -0.01em;
  margin: 0.35em 0 0.5em;
}

.prod-hero__lead {
  color: var(--prod-lead);
  font-size: clamp(1rem, 1.4vw, 1.08rem);
  line-height: 1.8;
  max-width: 46ch;
}

.prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.prod-facts {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
}

.prod-facts__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--celadon-deep);
}

.prod-facts__num {
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
  font-weight: 500;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.prod-facts__label {
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--prod-muted);
}

.prod-hero__figure {
  margin: 0;
}

/* ---------- 顶部步骤轨道 ---------- */
.prod-track {
  border-block: 1px solid var(--line);
  background: var(--scrim);
  backdrop-filter: blur(8px);
}

@media (min-width: 1024px) {
  .prod-track {
    position: sticky;
    top: 0;
    z-index: 20;
  }
}

.prod-track__list {
  list-style: none;
  margin: 0;
  padding: 14px 0;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.prod-track__list::-webkit-scrollbar {
  display: none;
}

.prod-track__item {
  flex: 1 0 auto;
  min-width: 148px;
  border-top: 2px solid rgba(79, 183, 154, 0.35);
  padding-top: 8px;
  transition: border-color 0.2s ease;
}

.prod-track__item:hover {
  border-top-color: var(--amber);
}

.prod-track__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 6px 4px 0;
  text-decoration: none;
  color: var(--prod-lead);
}

.prod-track__link:hover,
.prod-track__link:focus-visible {
  color: #FFFFFF;
}

.prod-track__num {
  font-size: 0.78rem;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.prod-track__label {
  font-size: 0.86rem;
  font-weight: 500;
  white-space: nowrap;
}

/* ---------- 通用区块 ---------- */
.prod-sec {
  padding-block: clamp(36px, 5.5vw, 72px);
}

.prod-sec--band {
  background: var(--ink-850);
  border-block: 1px solid var(--line);
}

.prod-sec__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 3.2vw, 36px);
  max-width: 62ch;
}

.prod-sec__kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.prod-sec__rule {
  display: block;
  width: 26px;
  height: 1px;
  background: var(--line-strong);
}

.prod-sec__title {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.prod-sec__lead {
  color: var(--prod-lead);
  font-size: 0.98rem;
  line-height: 1.8;
}

/* ---------- 网格与卡片 ---------- */
.prod-grid {
  display: grid;
  gap: var(--prod-gap);
  grid-template-columns: 1fr;
}

@media (min-width: 680px) {
  .prod-grid--4,
  .prod-grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .prod-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .prod-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.prod-card {
  padding: clamp(18px, 2.2vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.prod-card__title {
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--paper);
}

.prod-card__text {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--prod-lead);
}

/* ---------- 三步卡片 ---------- */
.prod-stepcard {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(160deg, rgba(29, 53, 87, 0.55), rgba(18, 36, 67, 0.9));
  border: 2px solid var(--ink-700);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.prod-stepcard__num {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.prod-stepcard__title {
  font-size: 1.02rem;
  color: var(--paper);
}

.prod-stepcard__text {
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--prod-lead);
}

.prod-wide {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
}

/* ---------- 五步条 ---------- */
.prod-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.prod-step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(18px, 2.4vw, 28px) 0;
  border-bottom: 1px dashed var(--line);
  scroll-margin-top: 96px;
  transition: background 0.2s ease;
}

@media (min-width: 768px) {
  .prod-step {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 24px;
  }
}

.prod-step:hover {
  background: rgba(29, 53, 87, 0.35);
}

.prod-step__num {
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 500;
  color: var(--amber);
  line-height: 1.1;
  letter-spacing: -0.02em;
  border-left: 2px solid var(--celadon-deep);
  padding-left: 10px;
}

.prod-step__body {
  display: grid;
  gap: 8px;
}

.prod-step__title {
  font-size: clamp(1.05rem, 1.8vw, 1.24rem);
  color: var(--paper);
}

.prod-step__text {
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--prod-lead);
  max-width: 60ch;
}

.prod-step__note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--prod-muted);
}

.prod-step__note .tag {
  flex: none;
  margin-top: 2px;
}

/* ---------- 归属图 ---------- */
.prod-map {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
  align-items: start;
}

@media (min-width: 900px) {
  .prod-map {
    grid-template-columns: 7fr 5fr;
  }
}

.prod-map__figure {
  background: linear-gradient(155deg, rgba(18, 36, 67, 0.9), rgba(11, 23, 48, 0.9));
  border: 2px solid var(--ink-700);
  padding: clamp(12px, 2vw, 22px);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.prod-map__svg {
  display: block;
  width: 100%;
  height: auto;
}

.prod-map__node path {
  fill: var(--ink-700);
  stroke: var(--line-strong);
  stroke-width: 2;
  transition: fill 0.2s ease, stroke 0.2s ease;
}

.prod-map__node text {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  fill: var(--paper);
  pointer-events: none;
}

.prod-map__node .prod-map__sub {
  font-size: 12px;
  font-weight: 400;
  fill: var(--prod-muted);
}

.prod-map__node--soft path {
  fill: var(--ink-800);
}

.prod-map__node--block path {
  fill: var(--ink-800);
}

.prod-map__node:hover path,
.prod-map__node:focus-visible path {
  fill: var(--celadon-deep);
  stroke: var(--celadon);
}

.prod-map__node:hover .prod-map__sub,
.prod-map__node:focus-visible .prod-map__sub {
  fill: #DDEDE7;
}

.prod-map__side {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.prod-map__thumb {
  margin: 0;
  max-width: 220px;
}

.prod-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.prod-notes__item {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--prod-lead);
}

.prod-notes__item strong {
  color: var(--paper);
}

.prod-notes__dot {
  width: 8px;
  height: 8px;
  margin-top: 8px;
  background: var(--celadon);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.prod-notes__dot--amber {
  background: var(--amber);
}

/* ---------- 编号定位 ---------- */
.prod-code {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
  align-items: center;
}

@media (min-width: 900px) {
  .prod-code {
    grid-template-columns: 5fr 7fr;
  }
}

.prod-code__figure {
  margin: 0;
}

.prod-code__body {
  display: grid;
  gap: 14px;
}

.prod-code__title {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--paper);
}

.prod-code__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.prod-code__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--prod-lead);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.prod-code__list .mono {
  color: var(--celadon);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  padding-top: 3px;
}

.prod-code__hint {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--prod-muted);
}

.prod-code__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 排查条目 ---------- */
.prod-q-list {
  display: grid;
  gap: 10px;
}

.prod-q {
  background: var(--ink-800);
  border: 2px solid var(--ink-700);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.prod-q summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 15px clamp(16px, 2.2vw, 22px);
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--paper);
}

.prod-q summary::-webkit-details-marker {
  display: none;
}

.prod-q summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--amber);
  line-height: 1;
}

.prod-q[open] summary::after {
  content: "\2212";
}

.prod-q[open] summary {
  color: var(--amber-soft);
}

.prod-q__body {
  padding: 0 clamp(16px, 2.2vw, 22px) 18px;
  font-size: 0.91rem;
  line-height: 1.8;
  color: var(--prod-lead);
  max-width: 68ch;
}

/* ---------- 收尾行动区 ---------- */
.prod-cta {
  margin-top: clamp(24px, 3.4vw, 40px);
  padding: clamp(20px, 3vw, 34px);
  display: grid;
  gap: 18px;
  background: linear-gradient(135deg, rgba(169, 112, 31, 0.22), rgba(18, 36, 67, 0.9) 55%);
  border: 2px solid var(--amber-deep);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

@media (min-width: 820px) {
  .prod-cta {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }
}

.prod-cta__title {
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  color: var(--paper);
  margin-bottom: 8px;
}

.prod-cta__lead {
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--prod-lead);
  max-width: 52ch;
}

.prod-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 820px) {
  .prod-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-track__item,
  .page-products .prod-step,
  .page-products .prod-map__node path {
    transition: none;
  }
}
<<<END>>>