.page-products {
  --p-line-l1: var(--glacier-500);
  --p-line-l2: var(--glacier-300);
  --p-line-l3: var(--gold-orange);
  --p-line-l4: var(--turquoise-green);
  display: block;
  padding-bottom: 72px;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding: 20px 0 2px;
}

/* ---------- 首屏 ---------- */
.page-products .hero-spec {
  padding: 12px 0 0;
  border-bottom: 1px solid var(--ink-700);
}
.page-products .hero-spec__grid {
  display: grid;
  gap: 22px;
  padding: 8px 0 0;
}
.page-products .eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--glacier-300);
  margin: 0;
}
.page-products .hero-spec__title {
  margin: 10px 0 0;
  font-size: clamp(34px, 9vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--text-primary);
}
.page-products .hero-spec__lede {
  margin: 16px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-primary);
  opacity: 0.92;
}
.page-products .hero-spec__visual {
  margin: 0;
  padding: 10px;
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}
.page-products .hero-spec__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--ink-900);
}
@media (min-width: 940px) {
  .page-products .hero-spec__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    gap: 44px;
    align-items: start;
  }
}

/* ---------- 首屏指标 ---------- */
.page-products .hero-spec__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink-700);
  border: 1px solid var(--ink-700);
  margin: 30px 0 0;
}
.page-products .spec-stat {
  background: var(--ink-900);
  padding: 15px 14px 18px;
  min-width: 0;
}
.page-products .spec-stat--peak {
  grid-column: span 2;
  background: var(--ink-800);
}
.page-products .spec-stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 7vw, 38px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--glacier-500);
}
.page-products .spec-stat--peak .spec-stat__value {
  font-size: clamp(52px, 16vw, 104px);
  font-weight: 700;
  letter-spacing: -0.04em;
}
.page-products .spec-stat__unit {
  font-size: 0.34em;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-left: 6px;
  vertical-align: baseline;
}
.page-products .spec-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}
@media (min-width: 820px) {
  .page-products .hero-spec__stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-products .spec-stat--peak {
    grid-column: span 3;
  }
}

/* ---------- 横向主题带 ---------- */
.page-products .band {
  border-top: 1px solid var(--ink-700);
  border-bottom: 1px solid var(--ink-700);
  background: var(--ink-800);
  margin: 0;
}
.page-products .band__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: baseline;
  padding: 16px 0;
}
.page-products .band__k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--glacier-500);
  border: 1px solid var(--ink-700);
  padding: 3px 9px;
}
.page-products .band__t {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-primary);
  max-width: 60em;
}

/* ---------- 主体骨架 ---------- */
.page-products .spec-layout {
  padding: 40px 0 0;
  display: grid;
  gap: 26px;
}
@media (min-width: 1040px) {
  .page-products .spec-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

/* ---------- 纵向索引 ---------- */
.page-products .spec-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 10px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.page-products .spec-rail::-webkit-scrollbar {
  display: none;
}
.page-products .spec-rail__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}
.page-products .spec-rail__num {
  color: var(--glacier-500);
}
.page-products .spec-rail__link:hover,
.page-products .spec-rail__link:focus-visible {
  color: var(--text-primary);
  border-color: var(--glacier-500);
}
.page-products .spec-rail__link[aria-current="true"] {
  color: var(--text-primary);
  background: var(--ink-900);
  border-color: var(--glacier-500);
  box-shadow: inset 3px 0 0 0 var(--glacier-500);
}
@media (min-width: 1040px) {
  .page-products .spec-rail {
    display: block;
    overflow: visible;
    padding: 0;
    position: sticky;
    top: 96px;
  }
  .page-products .spec-rail__link {
    display: flex;
    margin-bottom: 6px;
    padding: 10px 12px;
    white-space: normal;
    font-family: var(--font-sans);
    font-size: 13px;
    letter-spacing: 0;
    background: transparent;
    border: 1px solid transparent;
    border-left: 2px solid var(--ink-700);
  }
  .page-products .spec-rail__link[aria-current="true"] {
    background: var(--ink-800);
    border-color: var(--ink-700);
    border-left-color: var(--glacier-500);
    box-shadow: none;
  }
}

/* ---------- 内容块 ---------- */
.page-products .spec-block {
  background: var(--ink-800);
  border: 1px solid var(--ink-700);
  padding: 20px 16px 24px;
  margin-bottom: 22px;
  clip-path: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, 0 100%);
}
.page-products .spec-block:last-child {
  margin-bottom: 0;
}
.page-products .spec-block__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-700);
  margin-bottom: 16px;
}
.page-products .spec-block__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--glacier-500);
}
.page-products .spec-block__title {
  margin: 0;
  font-size: 19px;
  line-height: 1.42;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}
@media (min-width: 720px) {
  .page-products .spec-block__title {
    font-size: 22px;
  }
}

/* ---------- 正文 ---------- */
.page-products .spec-prose {
  max-width: 40em;
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text-primary);
  opacity: 0.94;
}
.page-products .spec-prose:last-child {
  margin-bottom: 0;
}
.page-products .spec-prose--tight {
  max-width: none;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 14px;
}
.page-products .spec-prose .mono {
  font-family: var(--font-mono);
  font-size: 0.93em;
  color: var(--glacier-300);
}
.page-products .spec-prose a {
  color: var(--glacier-300);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--ink-700);
  transition: color 160ms var(--ease), text-decoration-color 160ms var(--ease);
}
.page-products .spec-prose a:hover,
.page-products .spec-prose a:focus-visible {
  color: var(--glacier-500);
  text-decoration-color: var(--glacier-500);
}

/* ---------- 编号演示 ---------- */
.page-products .code-demo {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  margin: 4px 0 16px;
  padding: 12px 20px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--glacier-500);
  font-family: var(--font-mono);
  font-size: clamp(28px, 8vw, 44px);
  letter-spacing: 0.02em;
}
.page-products .code-demo__seg--line {
  color: var(--glacier-500);
}
.page-products .code-demo__dash {
  color: var(--text-muted);
}
.page-products .code-demo__seg--tier {
  color: var(--gold-orange);
}
.page-products .code-notes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-products .code-notes li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-muted);
}
.page-products .code-notes .mono {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--glacier-300);
}

/* ---------- 表格 ---------- */
.page-products .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--ink-700);
  background: var(--ink-900);
  max-width: 100%;
}
.page-products .spec-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}
.page-products .spec-table caption {
  caption-side: top;
  text-align: left;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--ink-800);
  border-bottom: 1px solid var(--ink-700);
}
.page-products .spec-table th,
.page-products .spec-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--ink-700);
}
.page-products .spec-table thead th {
  background: var(--ink-800);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
}
.page-products .spec-table tbody tr:last-child th,
.page-products .spec-table tbody tr:last-child td {
  border-bottom: 0;
}
.page-products .spec-table tbody tr:hover {
  background: rgba(79, 209, 217, 0.05);
}
.page-products .spec-table tbody td {
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.7;
}
.page-products .spec-table .num {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--glacier-500);
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.page-products .line-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
}
.page-products .line-name .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}
.page-products .line-bar {
  flex: 0 0 auto;
  width: 4px;
  height: 22px;
  background: var(--text-muted);
}
.page-products .line-row--l1 .line-bar {
  background: var(--p-line-l1);
}
.page-products .line-row--l2 .line-bar {
  background: var(--p-line-l2);
}
.page-products .line-row--l3 .line-bar {
  background: var(--p-line-l3);
}
.page-products .line-row--l4 .line-bar {
  background: var(--p-line-l4);
}

/* ---------- 媒体容器 ---------- */
.page-products .media-frame {
  margin: 18px 0 0;
  padding: 8px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
}
.page-products .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-900);
}
.page-products .media-frame--wide img {
  aspect-ratio: 12 / 7;
}
.page-products .media-frame--ridge img {
  aspect-ratio: 1 / 1;
  max-height: 520px;
}
.page-products .media-frame__caption {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.68;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* ---------- 档位标签 ---------- */
.page-products .tier-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.page-products .tier-tabs::-webkit-scrollbar {
  display: none;
}
.page-products .tier-tab {
  flex: 0 0 auto;
  appearance: none;
  -webkit-appearance: none;
  padding: 8px 14px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}
.page-products .tier-tab:hover,
.page-products .tier-tab:focus-visible {
  color: var(--text-primary);
  border-color: var(--glacier-300);
}
.page-products .tier-tab[aria-pressed="true"],
.page-products .tier-tab.is-active {
  color: var(--text-primary);
  border-color: var(--glacier-500);
  background: rgba(79, 209, 217, 0.12);
}

/* ---------- 档位面板 ---------- */
.page-products .tier-panels {
  display: grid;
  gap: 12px;
}
@media (min-width: 760px) {
  .page-products .tier-panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1160px) {
  .page-products .tier-panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-products .tier-panel {
  min-width: 0;
  padding: 15px 15px 16px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
}
.page-products .tier-panel.is-default {
  border-color: var(--glacier-500);
  background:
    linear-gradient(180deg, rgba(79, 209, 217, 0.12), rgba(79, 209, 217, 0) 62%),
    var(--ink-900);
}
.page-products .tier-panel__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
}
.page-products .tier-panel__code {
  font-family: var(--font-mono);
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--glacier-500);
}
.page-products .tier-panel.is-default .tier-panel__code {
  color: var(--glacier-300);
}
.page-products .tier-panel__name {
  font-size: 13px;
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.page-products .tier-panel__metric {
  margin: 0 0 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}
.page-products .tier-panel__metric .mono {
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.page-products .tier-panel__metric .tier-panel__mono-text {
  font-size: 19px;
  color: var(--gold-orange);
}
.page-products .tier-panel.is-default .tier-panel__metric .mono {
  color: var(--glacier-500);
}
.page-products .tier-panel__unit {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.page-products .tier-panel__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--text-muted);
}
.page-products .tier-panel__foot {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--ink-700);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* ---------- 矩阵 ---------- */
.page-products .matrix-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 12.5px;
}
.page-products .matrix-table caption {
  caption-side: top;
  text-align: left;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--ink-800);
  border-bottom: 1px solid var(--ink-700);
}
.page-products .matrix-table th,
.page-products .matrix-table td {
  border: 1px solid var(--ink-700);
  padding: 9px 8px;
  text-align: center;
}
.page-products .matrix-table thead th {
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.page-products .matrix-table tbody th {
  text-align: left;
  white-space: nowrap;
  font-weight: 500;
  background: var(--ink-900);
  color: var(--text-primary);
  font-size: 13px;
}
.page-products .matrix-table tbody th .mono {
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-right: 2px;
}
.page-products .mx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
}
.page-products .mx--rec {
  color: var(--turquoise-green);
  background: rgba(47, 176, 138, 0.14);
}
.page-products .mx--opt {
  color: var(--gold-orange);
  background: rgba(242, 160, 61, 0.12);
}
.page-products .mx--neg {
  color: var(--text-muted);
  background: rgba(147, 168, 184, 0.08);
}
.page-products .spec-legend {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-muted);
}
.page-products .spec-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.page-products .spec-legend__sw {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
}
.page-products .spec-legend__sw--rec {
  background: var(--turquoise-green);
}
.page-products .spec-legend__sw--opt {
  background: var(--gold-orange);
}
.page-products .spec-legend__sw--neg {
  background: var(--text-muted);
}

/* ---------- 选型建议 ---------- */
.page-products .advice-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .advice-list--archived {
  margin-top: 8px;
}
.page-products .advice-item {
  padding: 14px 15px 16px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--turquoise-green);
}
.page-products .advice-item--hold {
  border-left-color: var(--gold-orange);
}
.page-products .advice-item--archived {
  border-left-color: var(--prayer-red);
  opacity: 0.78;
}
.page-products .advice-item--archived .advice-item__text {
  color: var(--text-muted);
}
.page-products .advice-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.page-products .advice-item__id {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.page-products .advice-item__code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--glacier-500);
  border: 1px solid var(--ink-700);
  padding: 2px 8px;
}
.page-products .advice-item__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--text-primary);
}
.page-products .advice-item__meta {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* ---------- 折叠组 ---------- */
.page-products .disclosure {
  margin-top: 14px;
}
.page-products .disclosure__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13.5px;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}
.page-products .disclosure__toggle:hover,
.page-products .disclosure__toggle:focus-visible {
  border-color: var(--prayer-red);
  background: var(--ink-800);
}
.page-products .disclosure__index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--prayer-red);
}
.page-products .disclosure__icon {
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--glacier-500);
  transition: transform 200ms var(--ease);
}
.page-products .disclosure__toggle[aria-expanded="true"] .disclosure__icon {
  transform: rotate(180deg);
}
.page-products .disclosure__panel {
  padding-top: 12px;
}

/* ---------- 区域分布 ---------- */
.page-products .region-bars {
  list-style: none;
  margin: 16px 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .region-bar {
  display: grid;
  gap: 6px;
}
.page-products .region-bar__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
}
.page-products .region-bar__name {
  color: var(--text-primary);
}
.page-products .region-bar__name .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-right: 4px;
}
.page-products .region-bar__val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--glacier-500);
  white-space: nowrap;
}
.page-products .region-bar__track {
  display: block;
  height: 8px;
  background: var(--ink-900);
  border: 1px solid var(--ink-700);
  overflow: hidden;
}
.page-products .region-bar__fill {
  display: block;
  height: 100%;
}
.page-products .region-bar__fill--l1 {
  width: 32.8%;
  background: var(--p-line-l1);
}
.page-products .region-bar__fill--l2 {
  width: 30.2%;
  background: var(--p-line-l2);
}
.page-products .region-bar__fill--l3 {
  width: 16.7%;
  background: var(--p-line-l3);
}
.page-products .region-bar__fill--l4 {
  width: 20.3%;
  background: var(--p-line-l4);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .spec-rail__link,
  .page-products .tier-tab,
  .page-products .disclosure__toggle,
  .page-products .disclosure__icon,
  .page-products .spec-prose a {
    transition: none;
  }
  .page-products .disclosure__toggle[aria-expanded="true"] .disclosure__icon {
    transform: none;
  }
}