.page-products {
  --sel-gap: 20px;
  --sel-radius: 0;
}

/* ---------- 首屏 ---------- */
.page-products .sel-hero {
  padding-top: 40px;
}

.page-products .sel-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-products .sel-hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 9vw, 76px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  margin: 14px 0 18px;
  color: var(--paper-100);
}

.page-products .sel-hero-copy .lede {
  max-width: 40ch;
  color: var(--paper-300);
  line-height: 1.75;
}

.page-products .sel-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .sel-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .sel-stat {
  background: var(--ink-800);
  padding: 18px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .sel-stat .stat-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 40px;
  line-height: 1;
  color: var(--gold-500);
}

.page-products .sel-stat .stat-label {
  font-size: 13px;
  color: var(--steel-400);
  letter-spacing: 0.04em;
}

/* ---------- 三步选型器 ---------- */
.page-products .picker {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .picker-steps {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.page-products .picker-group {
  border-left: 1px solid var(--line-gold);
  padding-left: 16px;
}

.page-products .picker-label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 15px;
  color: var(--paper-100);
}

.page-products .step-no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold-500);
  letter-spacing: 0.08em;
}

.page-products .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
}

.page-products .chip-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  clip-path: inset(50%);
}

.page-products .chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  color: var(--paper-300);
  font-size: 14px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color var(--ease), background-color var(--ease), color var(--ease);
}

.page-products .chip:hover {
  border-color: var(--gold-500);
  color: var(--paper-100);
}

.page-products .chip-input:checked + .chip {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--ink-900);
  font-weight: 600;
}

.page-products .chip-input:focus-visible + .chip {
  outline: 2px solid var(--gold-300);
  outline-offset: 2px;
}

.page-products .gauge-figure {
  margin: 0;
}

.page-products .gauge {
  width: 100%;
  height: auto;
  margin-top: 14px;
}

.page-products .gauge-axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.page-products .gauge-tick line {
  stroke: var(--gold-500);
  stroke-width: 1.5;
}

.page-products .gauge-text text {
  fill: var(--steel-400);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-products .gauge-figure .figcaption {
  color: var(--steel-400);
  font-size: 13px;
  line-height: 1.7;
  margin-top: 10px;
}

/* 推荐卡 */
.page-products .picker-result {
  background: var(--ink-700);
  border: 1px solid var(--line-soft);
  padding: 20px 18px 22px;
}

.page-products .result-head {
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 13px;
  color: var(--gold-500);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .rec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .rec {
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line-gold);
  padding: 14px 14px 16px;
  transition: opacity var(--ease), filter var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-products .rec:hover {
  border-left-color: var(--gold-300);
  background: rgba(201, 162, 39, 0.06);
}

.page-products .rec-code {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--gold-500);
  margin: 0 0 6px;
  letter-spacing: 0.03em;
}

.page-products .rec-title {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--paper-100);
  margin: 0 0 6px;
}

.page-products .rec-meta {
  font-size: 13px;
  color: var(--steel-400);
  margin: 0 0 8px;
  line-height: 1.6;
}

.page-products .rec-reason {
  font-size: 14px;
  color: var(--paper-300);
  line-height: 1.75;
  margin: 0;
}

/* 筛选联动：勾选后不匹配项淡出 */
.page-products .picker:has(#mount-wall:checked) .rec:not([data-mount~="wall"]),
.page-products .picker:has(#mount-floor:checked) .rec:not([data-mount~="floor"]),
.page-products .picker:has(#mount-embed:checked) .rec:not([data-mount~="embed"]),
.page-products .picker:has(#mount-counter:checked) .rec:not([data-mount~="counter"]),
.page-products .picker:has(#mount-pole:checked) .rec:not([data-mount~="pole"]),
.page-products .picker:has(#mount-buried:checked) .rec:not([data-mount~="buried"]),
.page-products .picker:has(#volt-220:checked) .rec:not([data-volt~="v220"]),
.page-products .picker:has(#volt-wide:checked) .rec:not([data-volt~="vwide"]),
.page-products .picker:has(#volt-380:checked) .rec:not([data-volt~="v380"]),
.page-products .picker:has(#dn-15:checked) .rec:not([data-dn~="dn15"]),
.page-products .picker:has(#dn-20:checked) .rec:not([data-dn~="dn20"]),
.page-products .picker:has(#dn-25:checked) .rec:not([data-dn~="dn25"]),
.page-products .picker:has(#dn-32:checked) .rec:not([data-dn~="dn32"]),
.page-products .picker:has(#dn-40:checked) .rec:not([data-dn~="dn40"]),
.page-products .picker:has(#dn-50:checked) .rec:not([data-dn~="dn50"]) {
  opacity: 0.26;
  filter: grayscale(0.7);
}

/* ---------- 品类家族 ---------- */
.page-products .family-banner {
  margin: 0 0 26px;
}

.page-products .family-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .family-card {
  background: var(--ink-800);
  padding: 22px 20px 24px;
  position: relative;
  border-top: 3px solid var(--line-soft);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-products .family-card:hover {
  background: var(--ink-700);
}

.page-products .family-card--jade {
  border-top-color: var(--jade-500);
}

.page-products .family-card--plum {
  border-top-color: var(--plum-600);
}

.page-products .family-card--indigo {
  border-top-color: var(--indigo-500);
}

.page-products .family-card--jade:hover {
  border-top-color: var(--gold-300);
}

.page-products .family-card--plum:hover {
  border-top-color: var(--gold-300);
}

.page-products .family-card--indigo:hover {
  border-top-color: var(--gold-300);
}

.page-products .family-code {
  font-family: var(--font-mono);
  font-size: 64px;
  line-height: 0.85;
  margin: 0 0 6px;
  color: var(--line-strong);
  letter-spacing: -0.02em;
}

.page-products .family-card--jade .family-code {
  color: rgba(46, 125, 107, 0.55);
}

.page-products .family-card--plum .family-code {
  color: rgba(122, 74, 114, 0.6);
}

.page-products .family-card--indigo .family-code {
  color: rgba(59, 91, 165, 0.6);
}

.page-products .family-title {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.08em;
  color: var(--paper-100);
  margin: 0 0 10px;
}

.page-products .family-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-300);
  margin: 0 0 12px;
}

.page-products .family-meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--steel-400);
  letter-spacing: 0.03em;
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

.page-products .family-inline-figure {
  margin: 14px 0 12px;
}

/* ---------- 型号索引与参数表 ---------- */
.page-products .sel-models-sec {
  color: var(--ink-on-paper);
}

.page-products .sel-models-sec .section-desc {
  color: var(--muted-on-paper);
}

.page-products .model-area {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-products .model-rail {
  border: 1px solid rgba(10, 18, 28, 0.16);
  background: rgba(10, 18, 28, 0.04);
  padding: 16px 14px;
}

.page-products .model-rail .rail-title {
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--ink-900);
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(10, 18, 28, 0.18);
}

.page-products .rail-group {
  margin-bottom: 14px;
}

.page-products .rail-family {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--ink-900);
  text-decoration: none;
  padding: 4px 0;
  border-left: 2px solid var(--gold-500);
  padding-left: 8px;
}

.page-products .rail-family:hover,
.page-products .rail-family[data-active="true"] {
  color: var(--copper-600);
  border-left-color: var(--copper-600);
}

.page-products .rail-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 0 0 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .index-link {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted-on-paper);
  text-decoration: none;
  padding: 3px 6px;
  border: 1px solid transparent;
}

.page-products .index-link:hover {
  color: var(--ink-900);
  border-color: var(--gold-500);
  background: rgba(201, 162, 39, 0.16);
}

.page-products .table-panel {
  min-width: 0;
}

.page-products .model-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .model-table th {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-400);
  background: var(--ink-800);
  text-align: left;
  padding: 12px 12px;
  white-space: nowrap;
}

.page-products .model-table td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(10, 18, 28, 0.12);
  color: var(--muted-on-paper);
  white-space: nowrap;
}

.page-products .model-table tbody tr:nth-child(odd) {
  background: rgba(10, 18, 28, 0.035);
}

.page-products .model-table tbody tr:hover {
  background: rgba(201, 162, 39, 0.16);
}

.page-products .model-table tbody tr:target {
  background: rgba(184, 92, 46, 0.18);
}

.page-products .model-table .model-cell {
  color: var(--ink-900);
  font-weight: 600;
}

.page-products .table-note {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted-on-paper);
  margin: 16px 0 0;
  max-width: 62ch;
}

/* ---------- 实测章节 ---------- */
.page-products .test-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .test-figure {
  margin: 0;
}

.page-products .test-figure .figcaption {
  color: var(--steel-400);
  font-size: 13px;
  line-height: 1.7;
  margin-top: 10px;
}

.page-products .test-folds {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .test-fold {
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--gold-500);
  background: var(--ink-800);
}

.page-products .test-fold summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--paper-100);
  letter-spacing: 0.02em;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .test-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .test-fold summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--gold-500);
  font-size: 18px;
  line-height: 1;
}

.page-products .test-fold[open] summary::after {
  content: "−";
}

.page-products .test-fold summary:hover {
  color: var(--gold-300);
}

.page-products .test-fold[open] {
  border-left-color: var(--copper-600);
}

.page-products .test-body {
  padding: 4px 18px 18px;
  border-top: 1px solid var(--line-soft);
}

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

.page-products .cond-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cond-row:last-child {
  border-bottom: none;
}

.page-products .cond-row dt {
  font-size: 12.5px;
  color: var(--steel-400);
  letter-spacing: 0.05em;
}

.page-products .cond-row dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper-300);
  line-height: 1.7;
}

.page-products .cond-row dd .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold-500);
  font-size: 15px;
}

.page-products .test-note {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--steel-400);
  margin: 6px 0 0;
}

.page-products .test-note a {
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-products .test-note a:hover {
  color: var(--gold-300);
}

/* ---------- 案例库 ---------- */
.page-products .sel-cases-sec {
  color: var(--ink-on-paper);
}

.page-products .sel-cases-sec .section-desc {
  color: var(--muted-on-paper);
}

.page-products .case-banner {
  margin: 0 0 24px;
}

.page-products .case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .case-card {
  background: #fff;
  border: 1px solid rgba(10, 18, 28, 0.14);
  border-top: 3px solid var(--ink-900);
  padding: 18px 18px 20px;
  transition: border-color var(--ease), transform var(--ease);
}

.page-products .case-card:hover {
  border-top-color: var(--gold-500);
}

.page-products .case-title {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--ink-900);
  margin: 10px 0 12px;
}

.page-products .case-line {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-on-paper);
  margin: 0 0 8px;
}

.page-products .case-key {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-900);
  background: rgba(10, 18, 28, 0.07);
  padding: 1px 6px;
  margin-right: 6px;
}

.page-products .cases-note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-on-paper);
  margin: 22px 0 0;
  max-width: 68ch;
}

.page-products .cases-note a {
  color: var(--copper-600);
  text-decoration: none;
  border-bottom: 1px solid var(--line-copper);
}

/* ---------- 配件与组合 ---------- */
.page-products .kit-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products .kit-card {
  background: var(--ink-800);
  padding: 22px 20px 24px;
  transition: background-color var(--ease);
}

.page-products .kit-card:hover {
  background: var(--ink-700);
}

.page-products .kit-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-500);
  letter-spacing: 0.14em;
  margin: 0 0 10px;
}

.page-products .kit-title {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.07em;
  color: var(--paper-100);
  margin: 0 0 10px;
}

.page-products .kit-desc {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-300);
  margin: 0;
}

/* ---------- 收尾 CTA ---------- */
.page-products .cta-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  border: 1px solid var(--line-gold);
  border-left: 4px solid var(--gold-500);
  padding: 28px 22px 30px;
  background: linear-gradient(140deg, rgba(201, 162, 39, 0.1) 0%, rgba(14, 27, 42, 0) 62%);
}

.page-products .cta-copy .lede {
  color: var(--paper-300);
  max-width: 56ch;
}

.page-products .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products .cta-side {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  align-content: start;
}

.page-products .cta-side li {
  background: var(--ink-900);
  padding: 16px 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-products .cta-side-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  line-height: 1;
  color: var(--gold-500);
}

.page-products .cta-side-text {
  font-size: 13.5px;
  color: var(--steel-400);
  line-height: 1.6;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .sel-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .rec-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

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

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

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

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

  .page-products .cta-side li {
    flex-direction: column;
    gap: 8px;
  }
}

@media (min-width: 1024px) {
  .page-products .sel-hero {
    padding-top: 64px;
  }

  .page-products .sel-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: end;
  }

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

  .page-products .picker {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
  }

  .page-products .picker-steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 28px;
  }

  .page-products .gauge-figure {
    grid-column: 1 / -1;
  }

  .page-products .family-bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-products .family-card {
    grid-column: span 4;
  }

  .page-products .family-card--focus {
    grid-column: span 8;
  }

  .page-products .family-card--wide {
    grid-column: span 8;
  }

  .page-products .model-area {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 32px;
  }

  .page-products .model-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    max-height: calc(100vh - var(--header-h) - 44px);
    overflow-y: auto;
  }

  .page-products .rail-list {
    flex-direction: column;
    gap: 2px;
  }

  .page-products .test-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 36px;
    align-items: start;
  }

  .page-products .case-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .case-card {
    grid-column: span 2;
  }

  .page-products .case-card--wide {
    grid-column: span 4;
  }

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

  .page-products .cta-panel {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 40px;
    padding: 40px 36px 42px;
    align-items: center;
  }

  .page-products .cta-side {
    grid-template-columns: 1fr;
  }

  .page-products .cta-side li {
    flex-direction: row;
    align-items: baseline;
  }
}

@media (min-width: 1280px) {
  .page-products .family-card {
    grid-column: span 4;
  }

  .page-products .family-card--focus {
    grid-column: span 8;
  }

  .page-products .family-card--wide {
    grid-column: span 8;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .chip,
  .page-products .rec,
  .page-products .family-card,
  .page-products .case-card,
  .page-products .kit-card,
  .page-products .index-link {
    transition: none;
  }
}