.page-products {
  padding-bottom: clamp(56px, 9vw, 128px);
  font-family: var(--font-sans);
  color: var(--black-900);
}

/* ---------- 面包屑 ---------- */
.page-products .prod-crumb-bar {
  border-bottom: 1px solid rgba(44, 92, 126, .16);
  background: var(--surface);
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--graphite-400);
}

.page-products .breadcrumb__link {
  color: var(--graphite-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .breadcrumb__link:hover,
.page-products .breadcrumb__link:focus-visible {
  color: var(--sand-500);
  border-bottom-color: var(--sand-500);
}

.page-products .breadcrumb__sep {
  color: var(--cool-300);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding-top: clamp(40px, 7vw, 88px);
}

.page-products .prod-hero__index {
  display: block;
  margin: 0 0 clamp(16px, 2vw, 26px);
  color: var(--sand-500);
}

.page-products .prod-hero__title {
  margin: 0 0 clamp(18px, 2.4vw, 30px);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(36px, 6.4vw, 82px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--ink-900);
  max-width: 15em;
}

.page-products .prod-hero__lead {
  margin: 0;
  max-width: 38em;
  font-size: clamp(16px, 1.2vw, 17px);
  line-height: 1.78;
  color: var(--graphite-400);
}

.page-products .prod-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
  background: rgba(44, 92, 126, .18);
  border: 1px solid rgba(44, 92, 126, .18);
}

.page-products .prod-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--surface);
}

.page-products .prod-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--ink-900);
  font-variant-numeric: tabular-nums;
}

.page-products .prod-stat__txt {
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--graphite-400);
}

.page-products .prod-hero__figure {
  margin: clamp(34px, 5vw, 62px) 0 0;
  border-left: 2px solid var(--sand-500);
}

/* ---------- 主体两栏 ---------- */
.page-products .prod-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 52px);
  margin-top: clamp(44px, 7vw, 84px);
}

/* ---------- 侧边索引 ---------- */
.page-products .prod-toc {
  border-top: 1px solid rgba(44, 92, 126, .2);
  border-bottom: 1px solid rgba(44, 92, 126, .2);
  padding: 12px 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.page-products .prod-toc::-webkit-scrollbar {
  display: none;
}

.page-products .prod-toc__title {
  margin: 0 0 10px;
  padding-left: 0;
  color: var(--sand-500);
  white-space: nowrap;
}

.page-products .prod-toc__list {
  display: flex;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
  white-space: nowrap;
}

.page-products .prod-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding-bottom: 4px;
  font-size: 13px;
  color: var(--graphite-400);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .prod-toc__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cool-300);
}

.page-products .prod-toc__link:hover,
.page-products .prod-toc__link:focus-visible,
.page-products .prod-toc__link.is-active {
  color: var(--ink-900);
  border-bottom-color: var(--sand-500);
}

.page-products .prod-toc__link.is-active .prod-toc__no {
  color: var(--sand-500);
}

/* ---------- 章节节奏 ---------- */
.page-products .prod-flow > .section + .section {
  margin-top: clamp(64px, 10vw, 128px);
}

.page-products .prod-flow .section__num {
  display: block;
  margin-bottom: 12px;
  color: var(--sand-500);
}

.page-products .prod-flow .section__title {
  margin: 0 0 16px;
  font-size: clamp(25px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.005em;
  color: var(--ink-900);
}

.page-products .prod-flow .section__lead {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--graphite-400);
}

.page-products .prod-flow .section__head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

/* ---------- 两条产品线 ---------- */
.page-products .prod-lines__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-products .prod-line {
  position: relative;
  padding: 26px 22px 24px;
  background: var(--surface);
  border: 1px solid rgba(44, 92, 126, .2);
  clip-path: var(--cut);
}

.page-products .prod-line--home {
  border-top: 3px solid var(--sand-500);
}

.page-products .prod-line--comm {
  border-top: 3px solid var(--ink-700);
}

.page-products .prod-line__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.page-products .prod-line__title {
  margin: 0;
  font-size: clamp(18px, 1.6vw, 21px);
  font-weight: 700;
  color: var(--ink-900);
}

.page-products .prod-line__body {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite-400);
}

.page-products .prod-line__spec {
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px dashed rgba(44, 92, 126, .28);
}

.page-products .prod-line__spec-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(44, 92, 126, .28);
}

.page-products .prod-line__spec-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--steel-500);
}

.page-products .prod-line__spec-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--black-900);
}

.page-products .prod-line__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 2px solid var(--sand-500);
  padding-bottom: 3px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .prod-line__link:hover,
.page-products .prod-line__link:focus-visible {
  color: var(--signal-500);
  border-bottom-color: var(--signal-500);
}

/* ---------- 档位刻度 ---------- */
.page-products .tier-scale {
  margin-bottom: clamp(26px, 3.5vw, 42px);
  padding: 22px 20px 18px;
  background: var(--paper-100);
  border: 1px solid rgba(201, 161, 90, .34);
}

.page-products .tier-scale__rail {
  width: 100%;
}

.page-products .tier-scale__rail svg {
  display: block;
  width: 100%;
  height: 54px;
}

.page-products .tier-scale__ticks {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px dashed rgba(44, 92, 126, .26);
}

.page-products .tier-tick {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 10px;
  border-left: 2px solid rgba(201, 161, 90, .55);
}

.page-products .tier-tick__no {
  color: var(--sand-500);
}

.page-products .tier-tick__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-900);
  line-height: 1.4;
}

.page-products .tier-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tier-card {
  padding: 22px 20px;
  background: var(--surface);
  border: 1px solid rgba(44, 92, 126, .2);
  border-left: 3px solid var(--sand-500);
}

.page-products .tier-card__idx {
  margin: 0 0 10px;
  color: var(--sand-500);
  font-size: 13px;
}

.page-products .tier-card__name {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-900);
}

.page-products .tier-card__desc {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.76;
  color: var(--graphite-400);
}

.page-products .tier-card__models {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(44, 92, 126, .28);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--steel-500);
}

/* ---------- 型号表格 ---------- */
.page-products .model-table-wrap {
  overflow-x: auto;
  overscroll-behavior-x: contain;
  border: 1px solid rgba(44, 92, 126, .22);
  background: var(--surface);
}

.page-products .model-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .model-table__caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--graphite-400);
  background: var(--paper-100);
  border-bottom: 1px solid rgba(44, 92, 126, .22);
}

.page-products .model-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--ink-900);
  color: var(--sand-200);
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
  text-align: left;
  white-space: nowrap;
  border-right: 1px solid rgba(235, 217, 180, .16);
}

.page-products .model-table thead th:last-child {
  border-right: 0;
}

.page-products .model-table tbody th,
.page-products .model-table tbody td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid rgba(44, 92, 126, .14);
  color: var(--black-900);
}

.page-products .model-table tbody tr:nth-child(even) td,
.page-products .model-table tbody tr:nth-child(even) th {
  background: rgba(235, 217, 180, .22);
}

.page-products .model-table tbody tr:hover td,
.page-products .model-table tbody tr:hover th {
  background: rgba(201, 161, 90, .16);
}

.page-products .model-table tbody tr:last-child th,
.page-products .model-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .model-cell {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--surface);
  box-shadow: 1px 0 0 rgba(44, 92, 126, .22);
  min-width: 132px;
}

.page-products .model-table thead .model-cell {
  z-index: 3;
  background: var(--ink-900);
  box-shadow: 1px 0 0 rgba(235, 217, 180, .24);
}

.page-products .model-cell__name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--ink-900);
}

.page-products .model-table .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.page-products .model-table .tag--signal {
  display: inline-block;
  padding: 3px 9px;
  background: rgba(226, 96, 31, .1);
  border: 1px solid rgba(226, 96, 31, .5);
  color: var(--signal-500);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  white-space: nowrap;
}

.page-products .model-table__foot {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--graphite-400);
}

.page-products .prod-matrix .prod-figure {
  margin-top: clamp(28px, 4vw, 46px);
}

/* ---------- 图文 ---------- */
.page-products .prod-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
  border-left: 2px solid var(--sand-500);
}

.page-products .prod-figure--narrow {
  max-width: 560px;
}

/* ---------- 编号与报告 ---------- */
.page-products .report-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-products .report-serial {
  padding: 24px 22px;
  background: var(--ink-900);
  color: var(--paper-100);
  clip-path: var(--cut);
}

.page-products .report-serial__label {
  margin: 0 0 14px;
  color: var(--sand-500);
}

.page-products .report-serial__code {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper-100);
}

.page-products .report-serial__parts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-products .report-serial__parts li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 14px;
  line-height: 1.62;
  color: rgba(246, 242, 233, .82);
  padding-top: 11px;
  border-top: 1px dashed rgba(201, 161, 90, .38);
}

.page-products .report-serial__parts li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-products .report-serial__tag {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--signal-500);
  min-width: 46px;
}

.page-products .report-plate {
  margin: 0;
  border-left: 2px solid var(--signal-500);
}

.page-products .report-groups {
  padding: 24px 0 0;
  border-top: 1px solid rgba(44, 92, 126, .22);
}

.page-products .report-groups__title {
  margin: 0 0 18px;
  color: var(--graphite-400);
}

.page-products .report-groups__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .report-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 150px;
  padding: 18px 16px;
  background: rgba(44, 92, 126, .08);
  border-top: 4px solid var(--steel-500);
  transition: background .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}

.page-products .report-group:hover {
  background: rgba(201, 161, 90, .16);
  border-top-color: var(--sand-500);
  transform: translateY(-3px);
}

.page-products .report-group--a { flex-grow: 9; }
.page-products .report-group--b { flex-grow: 8; }
.page-products .report-group--c { flex-grow: 6; }
.page-products .report-group--d { flex-grow: 5; }
.page-products .report-group--e { flex-grow: 6; }

.page-products .report-group__count {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--ink-900);
  font-variant-numeric: tabular-nums;
}

.page-products .report-group--a .report-group__count,
.page-products .report-group--b .report-group__count {
  color: var(--signal-500);
}

.page-products .report-group__name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--graphite-400);
}

.page-products .prod-inline-link {
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.78;
  color: var(--graphite-400);
  padding-left: 16px;
  border-left: 2px solid var(--sand-200);
}

.page-products .prod-inline-link a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--sand-500);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .prod-inline-link a:hover,
.page-products .prod-inline-link a:focus-visible {
  color: var(--signal-500);
  border-bottom-color: var(--signal-500);
}

/* ---------- 安装 ---------- */
.page-products .install-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .install-col {
  padding: 24px 22px;
  background: var(--surface);
  border: 1px solid rgba(44, 92, 126, .22);
}

.page-products .install-col--comm {
  margin-top: 0;
  background: var(--paper-100);
}

.page-products .install-col__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(44, 92, 126, .2);
}

.page-products .install-col__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink-900);
}

.page-products .install-col__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-products .install-col__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--black-900);
}

.page-products .install-col__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel-500);
}

.page-products .install-disclosure {
  margin-top: clamp(24px, 3.5vw, 38px);
  border: 1px solid rgba(44, 92, 126, .22);
  border-left: 3px solid var(--sand-500);
  background: var(--surface);
}

.page-products .install-disclosure .disclosure__btn {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  background: transparent;
}

.page-products .install-disclosure .disclosure__panel {
  padding: 0 20px 20px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--graphite-400);
}

.page-products .install-disclosure .disclosure__panel p {
  margin: 0;
}

/* ---------- 保修与备件 ---------- */
.page-products .warranty-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(44, 92, 126, .2);
  border: 1px solid rgba(44, 92, 126, .2);
}

.page-products .warranty-card {
  padding: 24px 22px;
  background: var(--surface);
}

.page-products .warranty-card__num {
  margin: 0 0 12px;
  color: var(--sand-500);
}

.page-products .warranty-card__name {
  margin: 0 0 12px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--ink-900);
}

.page-products .warranty-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--graphite-400);
}

/* ---------- 结尾 ---------- */
.page-products .prod-cta__panel {
  position: relative;
  padding: clamp(30px, 5vw, 58px) clamp(22px, 4vw, 52px);
  background: var(--ink-900);
  color: var(--paper-100);
  overflow: hidden;
}

.page-products .prod-cta__panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: clamp(90px, 18vw, 220px);
  height: 3px;
  background: linear-gradient(90deg, var(--sand-500), var(--signal-500));
}

.page-products .prod-cta__kicker {
  display: block;
  margin: 0 0 14px;
  color: var(--sand-500);
}

.page-products .prod-cta__title {
  margin: 0 0 16px;
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper-100);
}

.page-products .prod-cta__desc {
  margin: 0 0 26px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 242, 233, .8);
}

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

.page-products .prod-cta__panel .btn--solid {
  background: var(--sand-500);
  border-color: var(--sand-500);
  color: var(--ink-900);
}

.page-products .prod-cta__panel .btn--solid:hover,
.page-products .prod-cta__panel .btn--solid:focus-visible {
  background: var(--signal-500);
  border-color: var(--signal-500);
  color: var(--paper-100);
}

.page-products .prod-cta__panel .btn--outline {
  background: transparent;
  border-color: rgba(235, 217, 180, .5);
  color: var(--sand-200);
}

.page-products .prod-cta__panel .btn--outline:hover,
.page-products .prod-cta__panel .btn--outline:focus-visible {
  border-color: var(--sand-500);
  color: var(--paper-100);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .prod-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .prod-lines__grid,
  .page-products .install-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .install-col--comm {
    margin-top: 40px;
  }

  .page-products .tier-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .warranty-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .report-cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-products .prod-body {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }

  .page-products .prod-toc {
    position: sticky;
    top: 104px;
    align-self: start;
    border-top: 0;
    border-bottom: 0;
    border-left: 1px solid rgba(44, 92, 126, .24);
    padding: 0 0 0 18px;
    overflow: visible;
  }

  .page-products .prod-toc__list {
    flex-direction: column;
    gap: 4px;
    white-space: normal;
  }

  .page-products .prod-toc__link {
    padding: 8px 0;
    border-bottom: 0;
    border-left: 2px solid transparent;
    margin-left: -20px;
    padding-left: 18px;
  }

  .page-products .prod-toc__link:hover,
  .page-products .prod-toc__link:focus-visible,
  .page-products .prod-toc__link.is-active {
    border-bottom-color: transparent;
    border-left-color: var(--sand-500);
    background: rgba(201, 161, 90, .1);
  }

  .page-products .prod-hero {
    padding-top: clamp(56px, 7vw, 104px);
  }

  .page-products .tier-cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .warranty-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .install-col--comm {
    margin-top: 64px;
  }

  .page-products .prod-lines__grid {
    gap: 30px;
  }

  .page-products .prod-line--comm {
    margin-top: 46px;
  }
}

@media (min-width: 1200px) {
  .page-products .report-cols {
    grid-template-columns: 1.15fr 1fr;
    gap: 34px;
  }
}
<<<END>>>