.page-products {
  --pr-rail-w: 200px;
  --pr-card: 292px;
  --pr-bg-alt: rgba(18, 41, 63, 0.62);
  --pr-line: rgba(154, 167, 180, 0.24);
  color: var(--paper);
}

.page-products .ph-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-soft);
}

/* ---------- 首屏 ---------- */
.page-products .ph-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(24px, 4vw, 44px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--pr-line);
}

.page-products .ph-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .ph-lede {
  margin: 0 0 24px;
  max-width: 46ch;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  color: rgba(244, 241, 232, 0.86);
}

.page-products .ph-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .dial {
  border: 1px solid var(--pr-line);
  background:
    linear-gradient(160deg, rgba(18, 41, 63, 0.94), rgba(11, 26, 43, 0.94));
  padding: clamp(16px, 2.4vw, 24px);
  box-shadow: var(--paper-shadow);
}

.page-products .dial__cap {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--rock);
}

.page-products .dial__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  border-top: 1px solid var(--pr-line);
  padding-top: 14px;
}

.page-products .dial__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 10px;
  border-left: 2px solid rgba(111, 138, 123, 0.7);
}

.page-products .dial__cell--diff {
  border-left-color: var(--clay);
}

.page-products .dial__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--signal-soft);
}

.page-products .dial__cell--diff .dial__num {
  color: var(--clay);
}

.page-products .dial__label {
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--rock);
}

.page-products .dial__legend {
  list-style: none;
  margin: 18px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--pr-line);
  display: grid;
  gap: 8px;
}

.page-products .dial__legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 13px;
  color: rgba(244, 241, 232, 0.8);
}

.page-products .dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-radius: 50%;
  display: inline-block;
}

.page-products .dot--same { background: var(--sage); }
.page-products .dot--diff { background: var(--clay); }
.page-products .dot--arch { background: var(--moss); }

/* ---------- 区块骨架 ---------- */
.page-products .ph-section {
  padding: clamp(40px, 6vw, 84px) 0;
  border-bottom: 1px solid var(--pr-line);
}

.page-products .ph-section--flush {
  padding-top: clamp(32px, 4vw, 56px);
  border-bottom: 0;
}

.page-products .ph-head {
  max-width: 66ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .ph-head__no {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--signal);
}

.page-products .ph-head h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-products .ph-head__sub {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 241, 232, 0.8);
}

.page-products .ph-head__sub .mono {
  font-size: 13px;
  color: var(--signal-soft);
  padding: 1px 5px;
  border: 1px solid rgba(255, 179, 122, 0.4);
}

.page-products .ph-inline-note {
  margin: 22px 0 0;
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

.page-products .ph-inline-note a {
  color: var(--signal-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图 ---------- */
.page-products .ph-fig {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-products .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--pr-line);
  background: var(--ink-2);
}

.page-products .figure__caption {
  margin-top: 10px;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 范围卡 ---------- */
.page-products .scope-grid {
  display: grid;
  gap: 12px;
}

.page-products .scope-card {
  padding: 18px;
  background: var(--pr-bg-alt);
  border: 1px solid var(--pr-line);
  box-shadow: inset 3px 0 0 rgba(111, 138, 123, 0.75);
  transition: transform var(--step), box-shadow var(--step);
}

.page-products .scope-card:hover {
  transform: translateY(-2px);
  box-shadow: inset 3px 0 0 var(--signal), var(--paper-shadow);
}

.page-products .scope-card__no {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal-soft);
}

.page-products .scope-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .scope-card p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.78);
}

/* ---------- 对照外壳 + 筛选侧栏 ---------- */
.page-products .cmp-shell {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-products .filter-rail__inner {
  position: sticky;
  top: calc(var(--head-h) + var(--rail-h) + 12px);
  padding: 14px;
  border: 1px solid var(--pr-line);
  background: rgba(11, 26, 43, 0.92);
}

.page-products .fr-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-products .fr-switch {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  padding: 9px 10px;
  border: 1px solid rgba(255, 106, 43, 0.45);
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--paper);
  cursor: pointer;
}

.page-products .fr-switch input {
  width: 15px;
  height: 15px;
  accent-color: var(--signal);
  cursor: pointer;
}

.page-products .fr-switch:focus-within {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .fr-anchors,
.page-products .fr-legend {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .fr-anchors a {
  display: block;
  padding: 7px 8px;
  font-family: var(--font-ui);
  font-size: 13px;
  color: rgba(244, 241, 232, 0.82);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--step), border-color var(--step), color var(--step);
}

.page-products .fr-anchors a:hover,
.page-products .fr-anchors a:focus-visible {
  background: rgba(18, 41, 63, 0.9);
  border-left-color: var(--signal);
  color: var(--paper);
}

.page-products .fr-anchors a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .fr-legend li {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 4px 8px;
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--rock);
}

/* ---------- 横向对照条 ---------- */
.page-products .rail {
  position: relative;
}

.page-products .rail__track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 0 18px;
  scrollbar-color: var(--signal) rgba(154, 167, 180, 0.18);
  scrollbar-width: thin;
}

.page-products .rail__track:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

.page-products .cv-card {
  flex: 0 0 var(--pr-card);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  background: linear-gradient(180deg, rgba(18, 41, 63, 0.96), rgba(11, 26, 43, 0.96));
  border: 1px solid var(--pr-line);
  box-shadow: var(--paper-shadow);
  transition: transform var(--step), border-color var(--step);
}

.page-products .cv-card:nth-child(even) {
  margin-top: 14px;
}

.page-products .cv-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 179, 122, 0.55);
}

.page-products .cv-card.is-diff {
  border-color: rgba(200, 146, 122, 0.7);
  box-shadow: inset 3px 0 0 var(--clay), var(--paper-shadow);
}

.page-products .cv-card__tag {
  margin: 0 0 8px;
  align-self: flex-start;
  padding: 2px 7px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--sage);
  border: 1px solid rgba(111, 138, 123, 0.6);
}

.page-products .cv-card__tag--diff {
  color: var(--clay);
  border-color: rgba(200, 146, 122, 0.75);
  background: rgba(200, 146, 122, 0.12);
}

.page-products .cv-card__col {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-products .cv-no {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--signal-soft);
}

.page-products .cv-no--empty {
  color: var(--rock);
}

.page-products .cv-name {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
}

.page-products .cv-name--empty {
  color: var(--rock);
  font-size: 13px;
}

.page-products .cv-card__rule {
  height: 1px;
  background: var(--pr-line);
  margin: 4px 0;
}

.page-products .copy-btn {
  align-self: flex-start;
  margin-top: 6px;
  padding: 3px 9px;
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--signal-soft);
  background: transparent;
  border: 1px solid rgba(255, 179, 122, 0.5);
  cursor: pointer;
  transition: background var(--step), color var(--step);
}

.page-products .copy-btn:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
}

.page-products .copy-btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .rail__hint {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

/* ---------- 表格 ---------- */
.page-products .tbl-wrap {
  overflow-x: auto;
  border: 1px solid var(--pr-line);
  background: rgba(11, 26, 43, 0.7);
}

.page-products .tbl-cap {
  padding: 12px 14px 0;
  text-align: left;
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--rock);
}

.page-products .cmp-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

.page-products .cmp-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 10px 12px;
  text-align: left;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--rock);
  background: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}

.page-products .cmp-table tbody tr.grp th {
  padding: 9px 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--signal-soft);
  background: rgba(18, 41, 63, 0.98);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--pr-line);
}

.page-products .cmp-table tbody tr.row td {
  padding: 8px 12px;
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
  color: rgba(244, 241, 232, 0.9);
  border-bottom: 1px solid rgba(154, 167, 180, 0.1);
}

.page-products .cmp-table tbody tr.row:nth-child(even) {
  background: rgba(18, 41, 63, 0.55);
}

.page-products .cmp-table tbody tr.row:hover {
  background: rgba(18, 41, 63, 0.95);
}

.page-products .cmp-table td.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--signal-soft);
  white-space: nowrap;
}

.page-products .cmp-table tr.is-diff {
  box-shadow: inset 3px 0 0 var(--clay);
  background: rgba(200, 146, 122, 0.1);
}

.page-products .cmp-table tr.is-diff td.mono {
  color: var(--clay);
}

.page-products .state {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  line-height: 1.6;
  border: 1px solid transparent;
  white-space: nowrap;
}

.page-products .state--same {
  color: var(--sage);
  border-color: rgba(111, 138, 123, 0.6);
}

.page-products .state--diff {
  color: var(--clay);
  border-color: rgba(200, 146, 122, 0.8);
  background: rgba(200, 146, 122, 0.14);
}

/* 只看差异（CSS 渐进增强） */
.page-products .filter-rail:has(.only-diff:checked) ~ .compare-zone .cv-card:not(.is-diff) {
  display: none;
}

.page-products .filter-rail:has(.only-diff:checked) ~ .compare-zone .cmp-table tbody tr.row:not(.is-diff) {
  display: none;
}

/* ---------- 回溯 ---------- */
.page-products .legacy-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.page-products .step {
  padding: 16px 18px;
  border: 1px solid var(--pr-line);
  border-left: 3px solid var(--moss);
  background: var(--pr-bg-alt);
}

.page-products .step__no {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--moss);
  filter: brightness(1.9);
}

.page-products .step__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .step__text {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.8);
}

/* ---------- 差异条形 ---------- */
.page-products .bar-chart {
  display: grid;
  gap: 10px;
  padding: 18px;
  margin-bottom: clamp(20px, 3vw, 30px);
  border: 1px solid var(--pr-line);
  background: rgba(18, 41, 63, 0.66);
}

.page-products .bar-row {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "label num"
    "track track";
  gap: 6px 10px;
  align-items: center;
}

.page-products .bar-label {
  grid-area: label;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(244, 241, 232, 0.82);
}

.page-products .bar-num {
  grid-area: num;
  font-size: 12px;
  color: var(--signal-soft);
}

.page-products .bar-track {
  grid-area: track;
  display: flex;
  gap: 2px;
  height: 12px;
  background: rgba(154, 167, 180, 0.14);
  border: 1px solid rgba(154, 167, 180, 0.2);
}

.page-products .bar-fill {
  display: block;
  height: 100%;
  background: var(--sage);
}

.page-products .bar-fill--diff {
  background: var(--clay);
}

.page-products .diff-cards {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .diff-card {
  padding: 18px;
  border: 1px solid rgba(200, 146, 122, 0.55);
  background: linear-gradient(170deg, rgba(200, 146, 122, 0.12), rgba(18, 41, 63, 0.9));
  transition: transform var(--step);
}

.page-products .diff-card:hover {
  transform: translateY(-2px);
}

.page-products .diff-card__no {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--clay);
}

.page-products .diff-card__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .diff-card__body {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 241, 232, 0.82);
}

.page-products .diff-card__next {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid rgba(200, 146, 122, 0.35);
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--signal-soft);
}

/* ---------- 归档 ---------- */
.page-products .archive-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-products .archive-panel {
  border: 1px solid var(--line-strong);
  padding: clamp(16px, 2.4vw, 24px);
  background: rgba(11, 26, 43, 0.78);
  box-shadow: inset 0 0 0 4px rgba(232, 228, 216, 0.06);
}

.page-products .archive-row {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--pr-line);
}

.page-products .archive-row__no {
  flex: 0 0 auto;
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--signal);
}

.page-products .archive-row p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 241, 232, 0.82);
}

.page-products .archive-row p strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .archive-row--note {
  border-bottom: 0;
  padding-bottom: 16px;
}

.page-products .archive-row--note p {
  font-size: 14px;
  color: var(--rock);
}

.page-products .archive-panel .btn {
  margin-top: 4px;
}

/* ---------- 下一步 ---------- */
.page-products .next-grid {
  display: grid;
  gap: 12px;
}

.page-products .next-card {
  display: block;
  padding: 18px;
  text-decoration: none;
  border: 1px solid var(--pr-line);
  background: rgba(18, 41, 63, 0.7);
  transition: transform var(--step), border-color var(--step), background var(--step);
}

.page-products .next-card:hover,
.page-products .next-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--signal);
  background: rgba(18, 41, 63, 0.98);
}

.page-products .next-card:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .next-card__no {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-products .next-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .next-card p {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 241, 232, 0.78);
}

.page-products .next-card__go {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--signal-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .scope-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .diff-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .next-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .bar-row {
    grid-template-columns: 190px 1fr auto;
    grid-template-areas: "label track num";
  }
}

@media (min-width: 900px) {
  .page-products .ph-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }
  .page-products .legacy-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-products .archive-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products .cmp-shell {
    grid-template-columns: minmax(0, 1fr) var(--pr-rail-w);
    align-items: start;
  }
  .page-products .filter-rail {
    grid-column: 2;
    grid-row: 1;
  }
  .page-products .compare-zone {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }
  .page-products .cv-card {
    flex-basis: 320px;
  }
}

@media (max-width: 1023px) {
  .page-products .filter-rail__inner {
    position: static;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0 16px;
  }
  .page-products .fr-switch { grid-column: 1 / -1; }
  .page-products .fr-legend { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .page-products .filter-rail__inner { grid-template-columns: minmax(0, 1fr); }
  .page-products .cv-card:nth-child(even) { margin-top: 0; }
  .page-products .rail__track { gap: 10px; }
  .page-products .cv-card { flex-basis: 82vw; }
  .page-products .bar-chart { padding: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .scope-card,
  .page-products .cv-card,
  .page-products .diff-card,
  .page-products .next-card,
  .page-products .copy-btn,
  .page-products .fr-anchors a {
    transition: none;
  }
  .page-products .scope-card:hover,
  .page-products .cv-card:hover,
  .page-products .diff-card:hover,
  .page-products .next-card:hover {
    transform: none;
  }
}