.page-products {
  --pr-glow: rgba(79, 166, 255, 0.16);
  --pr-row: rgba(255, 255, 255, 0.022);
  --pr-accent-soft: rgba(227, 167, 58, 0.12);
}

.page-products > .shell {
  padding-top: 4px;
}

/* ---------- 首屏 ---------- */
.page-products .intro {
  position: relative;
  overflow: hidden;
}

.page-products .intro::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -140px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--pr-glow), transparent 62%);
  pointer-events: none;
}

.page-products .intro::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 14%, var(--line) 72%, transparent);
  pointer-events: none;
}

.page-products .intro-shell {
  position: relative;
  display: grid;
  gap: 40px;
}

.page-products .intro-main h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cold);
  max-width: 18ch;
}

.page-products .intro-main .lede {
  margin-top: 20px;
  font-size: clamp(17px, 2.1vw, 20px);
  line-height: 1.7;
  color: var(--cold);
  max-width: 54ch;
}

.page-products .intro-main .prose {
  margin-top: 18px;
}

.page-products .intro-main .prose p {
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
  max-width: 60ch;
}

.page-products .intro-main .prose p + p {
  margin-top: 12px;
}

.page-products .intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .intro-index {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-products .index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .index-list li + li {
  border-top: 1px solid var(--line-soft);
}

.page-products .index-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 2px;
  color: var(--silver);
  text-decoration: none;
  font-size: 15px;
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease);
}

.page-products .index-list a .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.page-products .index-list a:hover,
.page-products .index-list a:focus-visible {
  color: var(--cold);
  padding-left: 8px;
}

/* ---------- 通用区块头 ---------- */
.page-products .section-head {
  max-width: 72ch;
}

.page-products .section-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.24;
  font-weight: 700;
  color: var(--cold);
}

.page-products .section-lede {
  margin-top: 16px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
  max-width: 62ch;
}

/* ---------- 型号总览 ---------- */
.page-products .model-grid {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-products .model-card {
  position: relative;
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}

.page-products .model-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--amber), transparent 78%);
  opacity: 0.55;
  transition: opacity var(--dur-base) var(--ease);
}

.page-products .model-card:hover::before {
  opacity: 1;
}

.page-products .model-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .model-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-products .model-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  color: var(--cold);
}

.page-products .model-card p {
  margin: 0;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.7;
}

.page-products .model-card .model-fit {
  color: var(--muted);
  font-size: 14px;
}

.page-products .model-card .model-price {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--silver);
}

.page-products .model-card .model-price .num {
  color: var(--amber);
}

/* ---------- 参数矩阵 ---------- */
.page-products .matrix-layout {
  margin-top: 36px;
  display: grid;
  gap: 30px;
}

.page-products .tab-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-products .tab-list .tab {
  flex: 0 0 auto;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--silver);
  font-family: var(--font-body);
  font-size: 14px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
    background var(--dur-fast) var(--ease);
}

.page-products .tab-list .tab:hover {
  color: var(--cold);
  border-color: var(--night);
}

.page-products .tab-list .tab[aria-selected="true"] {
  background: var(--pr-accent-soft);
  border-color: var(--amber);
  color: var(--amber);
}

.page-products .tab-panel {
  margin-top: 20px;
  outline: none;
}

.page-products .tab-panel[hidden] {
  display: none;
}

.page-products .table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--panel);
  scrollbar-width: thin;
  background-image: linear-gradient(to right, rgba(8, 10, 13, 0.92), rgba(8, 10, 13, 0) 18px),
    linear-gradient(to left, rgba(8, 10, 13, 0.92), rgba(8, 10, 13, 0) 18px);
  background-position: left center, right center;
  background-repeat: no-repeat;
  background-size: 24px 100%, 24px 100%;
  background-attachment: local, local;
}

.page-products .data-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .data-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.page-products .data-table th,
.page-products .data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}

.page-products .data-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  background: var(--ink-700);
  position: sticky;
  top: 0;
  z-index: 2;
}

.page-products .data-table tbody tr:nth-child(odd) {
  background: var(--pr-row);
}

.page-products .data-table tbody th[scope="row"] {
  color: var(--cold);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .data-table td {
  color: var(--silver);
}

.page-products .data-table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--amber);
  white-space: nowrap;
}

.page-products .data-table th:first-child,
.page-products .data-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--ink-800);
  box-shadow: 1px 0 0 var(--line);
}

.page-products .data-table thead th:first-child {
  background: var(--ink-700);
  z-index: 3;
}

.page-products .data-table--scenario td {
  color: var(--silver);
}

.page-products .matrix-aside {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .aside-note {
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--panel);
  padding: 20px;
}

.page-products .aside-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .aside-list {
  margin: 0;
}

.page-products .aside-list > div + div {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.page-products .aside-list dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--cold);
}

.page-products .aside-list dd {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-products .matrix-layout + .media-frame,
.page-products .matrix-layout ~ .media-frame {
  margin-top: 40px;
}

/* ---------- 保养周期 ---------- */
.page-products .maintenance-layout {
  display: grid;
  gap: 36px;
}

.page-products .maintenance-lead h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.24;
  font-weight: 700;
  color: var(--cold);
}

.page-products .maintenance-lead .prose {
  margin-top: 16px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
  max-width: 60ch;
}

.page-products .maintenance-lead .media-frame {
  margin: 26px 0 0;
}

.page-products .timeline-track {
  list-style: none;
  margin: 0;
  padding: 26px 4px 10px;
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.page-products .timeline-node {
  flex: 0 0 244px;
  scroll-snap-align: start;
  position: relative;
  border-top: 2px solid var(--line);
  padding: 18px 2px 0;
}

.page-products .timeline-node::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(111, 227, 210, 0.14);
}

.page-products .timeline-node:last-child::before {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, 0.16);
}

.page-products .timeline-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-products .timeline-node h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--cold);
}

.page-products .timeline-node p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 价格档位 ---------- */
.page-products .price-ruler {
  margin-top: 40px;
  display: grid;
  gap: 18px;
}

.page-products .ruler-item {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--panel);
  padding: 18px 18px 20px;
}

.page-products .ruler-bar {
  display: block;
  width: 100%;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, rgba(227, 167, 58, 0.5), rgba(227, 167, 58, 0.04));
  border-top: 2px solid var(--amber);
  margin-bottom: 16px;
}

.page-products .ruler-item--1 .ruler-bar { height: 20px; }
.page-products .ruler-item--2 .ruler-bar { height: 34px; }
.page-products .ruler-item--3 .ruler-bar { height: 48px; }
.page-products .ruler-item--4 .ruler-bar { height: 62px; }
.page-products .ruler-item--5 .ruler-bar { height: 76px; }

.page-products .ruler-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .ruler-item h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--cold);
}

.page-products .ruler-range {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

.page-products .ruler-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-products .pricing-notes {
  margin-top: 34px;
  display: grid;
  gap: 18px;
}

.page-products .pricing-note {
  border-left: 2px solid var(--amber);
  padding: 4px 0 4px 18px;
}

.page-products .pricing-note h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--cold);
}

.page-products .pricing-note p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--silver);
}

/* ---------- 场景选型 ---------- */
.page-products .scenario-tips {
  margin-top: 32px;
  display: grid;
  gap: 16px;
}

.page-products .tip {
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--ink-700);
  padding: 20px;
}

.page-products .tip-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--night);
}

.page-products .tip p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--silver);
}

/* ---------- 定制方案 ---------- */
.page-products .custom-layout {
  display: grid;
  gap: 36px;
}

.page-products .custom-main h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.24;
  font-weight: 700;
  color: var(--cold);
}

.page-products .custom-main .prose {
  margin-top: 16px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
  max-width: 60ch;
}

.page-products .accordion {
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.page-products .accordion__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-products .accordion__item {
  border-bottom: 1px solid var(--line);
}

.page-products .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 4px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--cold);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  transition: color var(--dur-fast) var(--ease);
}

.page-products .accordion__trigger .acc-no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.14em;
}

.page-products .accordion__trigger:hover {
  color: var(--amber);
}

.page-products .accordion__trigger[aria-expanded="true"] {
  color: var(--amber);
}

.page-products .accordion__panel {
  padding: 0 4px 18px 34px;
}

.page-products .accordion__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
  max-width: 62ch;
}

.page-products .custom-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-products .custom-cta {
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--panel-alt);
  padding: 20px;
}

.page-products .custom-cta p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

/* ---------- 备件与交付节奏 ---------- */
.page-products .rhythm-layout {
  display: grid;
  gap: 34px;
}

.page-products .rhythm-lead h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.24;
  font-weight: 700;
  color: var(--cold);
}

.page-products .rhythm-lead .prose {
  margin-top: 16px;
  color: var(--silver);
  font-size: 16px;
  line-height: 1.78;
  max-width: 58ch;
}

.page-products .rhythm-stats {
  margin: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  overflow: hidden;
  background: var(--line);
}

.page-products .stat {
  background: var(--panel);
  padding: 20px;
}

.page-products .stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .stat dd {
  margin: 10px 0 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .stat-num {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

.page-products .stat-unit {
  font-size: 13px;
  color: var(--silver);
}

/* ---------- 结尾 ---------- */
.page-products .outro-shell {
  display: grid;
  gap: 26px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

.page-products .outro-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 700;
  line-height: 1.26;
  color: var(--cold);
}

.page-products .outro-shell .prose {
  margin-top: 16px;
  color: var(--silver);
  font-size: 15px;
  line-height: 1.78;
  max-width: 62ch;
}

.page-products .outro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 图片 ---------- */
.page-products .media-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-products .model-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-products .intro-shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-products .intro-main h1 {
    font-size: clamp(38px, 4.4vw, 56px);
  }

  .page-products .matrix-layout {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 28px;
    align-items: start;
  }

  .page-products .maintenance-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .timeline-track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);
    overflow-x: visible;
    gap: 0;
    padding-bottom: 0;
  }

  .page-products .timeline-node {
    flex: initial;
    padding: 20px 16px 0 0;
  }

  .page-products .custom-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .rhythm-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 44px;
    align-items: center;
  }

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

  .page-products .outro-shell {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: 36px;
  }
}

@media (min-width: 1120px) {
  .page-products .model-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .price-ruler {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: end;
  }

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

  .page-products .scenario-tips {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .index-list a,
  .page-products .model-card::before,
  .page-products .tab-list .tab,
  .page-products .accordion__trigger {
    transition: none;
  }
}