.page-products {
  --prod-edge: 20px;
  --prod-tight: 24px;
  --prod-gap: 32px;
  background: var(--ink-900);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.page-products p {
  margin: 0;
}

.page-products a {
  color: var(--cyan-400);
}

.page-products .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-products .prod-wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 0 var(--prod-edge);
}

@media (min-width: 768px) {
  .page-products {
    --prod-edge: 40px;
  }
}

@media (min-width: 1180px) {
  .page-products {
    --prod-edge: 72px;
  }
}

/* 面包屑 */
.page-products .prod-crumb {
  padding-top: 20px;
}

.page-products .prod-crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist-cyan);
}

.page-products .prod-crumb-list a {
  color: var(--mist-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .prod-crumb-list a:hover,
.page-products .prod-crumb-list a:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

.page-products .prod-crumb-sep {
  color: var(--line-gold);
}

.page-products .prod-crumb-current {
  color: var(--gold-200);
}

/* 首屏 */
.page-products .prod-hero {
  padding: 28px 0 56px;
  border-bottom: 2px solid var(--line-gold);
}

.page-products .hero-grid {
  display: grid;
  gap: 36px;
}

.page-products h1 {
  margin: 14px 0 0;
  font-size: clamp(28px, 6.4vw, 46px);
  line-height: 1.22;
  color: #fff;
}

.page-products .hero-lead {
  margin-top: 18px;
  max-width: 36em;
  color: var(--text-soft);
}

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

.page-products .hero-aside {
  border: 2px solid var(--line-gold);
  box-shadow: var(--shadow-hard);
  background: var(--ink-750);
  padding: 20px 18px 22px;
}

.page-products .hero-aside-label {
  font-size: 12px;
  color: var(--mist-cyan);
}

.page-products .hero-version {
  margin: 6px 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(48px, 13vw, 64px);
  line-height: 1;
  color: var(--gold-500);
  letter-spacing: 0.06em;
}

.page-products .hero-facts {
  margin: 0;
  border-top: 1px dashed var(--line-gold);
}

.page-products .fact-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 14px;
}

.page-products .fact-row dt {
  color: var(--mist-cyan);
}

.page-products .fact-row dd {
  margin: 0;
  color: var(--gold-200);
}

.page-products .hero-aside-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist-cyan);
}

@media (min-width: 920px) {
  .page-products .hero-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 56px;
    align-items: end;
  }
}

/* 章节骨架 */
.page-products .chap {
  padding: clamp(48px, 7vw, 92px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .chap--last {
  border-bottom: 0;
}

.page-products .chap-band {
  height: 6px;
  margin-bottom: 26px;
}

.page-products .chap-band--teal {
  background: var(--teal-deep);
}

.page-products .chap-band--indigo {
  background: var(--indigo-800);
}

.page-products .chap-band--wine {
  background: var(--wine-700);
}

.page-products .chap-band--gold {
  background: var(--gold-500);
}

.page-products .chap-band--cyan {
  background: var(--cyan-400);
}

.page-products .chap-band--amber {
  background: var(--amber-500);
}

.page-products .chap-head {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 28px;
}

.page-products .chap-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.1;
  color: var(--gold-500);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .chap-kicker {
  font-size: 12px;
  color: var(--mist-cyan);
  margin-bottom: 6px;
}

.page-products .chap-title {
  margin: 0;
  font-size: clamp(21px, 3.6vw, 30px);
  line-height: 1.35;
  color: #fff;
}

.page-products .chap-lead {
  max-width: 38em;
  margin-bottom: 28px;
  color: var(--text-soft);
}

@media (min-width: 900px) {
  .page-products .chap-head {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 24px;
  }
  .page-products .chap-num {
    font-size: 34px;
  }
}

/* 图片容器 */
.page-products .fig {
  margin: 0;
  border: 2px solid var(--gold-500);
  box-shadow: var(--shadow-hard);
  background: var(--ink-750);
}

.page-products .fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .fig-cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line-gold);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-200);
  line-height: 1.6;
}

.page-products .fig--wide {
  margin-bottom: 30px;
}

.page-products .fig--inset {
  margin-top: 18px;
  box-shadow: var(--shadow-gold);
}

/* §01 能力清单 */
.page-products .cap-grid {
  display: grid;
  gap: 32px;
}

.page-products .cap-lead {
  margin-bottom: 22px;
  max-width: 34em;
  color: var(--text-soft);
}

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

.page-products .cap-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0 18px 14px;
  border-left: 2px solid var(--line-gold);
  border-top: 1px dashed var(--line-soft);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .cap-item:last-child {
  border-bottom: 1px dashed var(--line-soft);
}

.page-products .cap-item:hover {
  border-left-color: var(--gold-500);
  background: rgba(255, 255, 255, 0.025);
}

.page-products .cap-no {
  font-size: 16px;
  line-height: 1.5;
  color: var(--gold-500);
  padding-top: 2px;
}

.page-products .cap-h {
  margin: 0 0 6px;
  font-size: 19px;
  color: var(--gold-200);
}

.page-products .cap-p {
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.8;
}

@media (min-width: 980px) {
  .page-products .cap-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 52px;
    align-items: start;
  }
}

/* §02 五维度 */
.page-products .dim-list {
  border-top: 1px solid var(--line-gold);
}

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

.page-products .dim-summary {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 6px 16px 10px;
  list-style: none;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: border-color var(--t-fast), background var(--t-fast);
}

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

.page-products .dim-summary:hover {
  border-left-color: var(--gold-500);
  background: rgba(255, 255, 255, 0.025);
}

.page-products .dim-summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-products .dim-no {
  font-size: 13px;
  color: var(--gold-500);
}

.page-products .dim-title {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: #fff;
}

.page-products .dim-count {
  font-size: 12px;
  color: var(--mist-cyan);
  white-space: nowrap;
}

.page-products .dim-count::after {
  content: " ＋";
  color: var(--gold-500);
}

.page-products .dim-item[open] .dim-count::after {
  content: " －";
}

.page-products .dim-body {
  padding: 4px 6px 22px 64px;
  max-width: 46em;
  color: var(--text-soft);
  font-size: 15px;
}

.page-products .dim-tip {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--amber-500);
  font-size: 14px;
  color: var(--text-soft);
}

.page-products .dim-tip-k {
  display: inline-block;
  margin-right: 8px;
  font-size: 12px;
  color: var(--amber-500);
}

@media (max-width: 620px) {
  .page-products .dim-body {
    padding-left: 12px;
  }
  .page-products .dim-summary {
    grid-template-columns: 36px minmax(0, 1fr) auto;
  }
}

/* §03 六步 */
.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-gold);
}

.page-products .step {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-bottom: 1px dashed var(--line-soft);
  transition: background var(--t-fast);
}

.page-products .step:hover {
  background: rgba(255, 255, 255, 0.02);
}

.page-products .step-no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1.15;
  color: var(--gold-500);
}

.page-products .step-h {
  margin: 0 0 6px;
  font-size: 18px;
  color: #fff;
}

.page-products .step-p {
  color: var(--text-soft);
  font-size: 15px;
  max-width: 40em;
}

.page-products .step-key {
  color: var(--cyan-400);
  font-size: 14px;
}

@media (min-width: 900px) {
  .page-products .step {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 24px;
    padding: 24px 0;
  }
  .page-products .step-no {
    font-size: 28px;
  }
}

/* §04 清单 */
.page-products .check-grid {
  display: grid;
  gap: 28px;
}

.page-products .check-aside {
  border: 2px solid var(--line-gold);
  background: var(--ink-750);
  padding: 16px 18px 18px;
}

.page-products .check-aside-title {
  margin-bottom: 10px;
  font-size: 12px;
  color: var(--gold-200);
  letter-spacing: 0.08em;
}

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

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

.page-products .check-aside-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-products .check-aside-list a:hover,
.page-products .check-aside-list a:focus-visible {
  color: var(--cyan-400);
}

.page-products .check-aside-list .mono {
  font-size: 12px;
  color: var(--mist-cyan);
}

.page-products .check-group {
  margin-bottom: 30px;
}

.page-products .check-group:last-child {
  margin-bottom: 0;
}

.page-products .check-group-h {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 8px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line-gold);
  font-size: 17px;
  color: var(--gold-200);
}

.page-products .check-group-h .mono {
  font-size: 13px;
  color: var(--gold-500);
}

.page-products .check-group-n {
  margin-left: auto;
  font-size: 12px;
  color: var(--mist-cyan);
}

.page-products .check-item {
  display: grid;
  grid-template-columns: 20px 28px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 9px 8px 9px 10px;
  border-left: 2px solid rgba(126, 154, 161, 0.45);
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .check-item:hover {
  border-left-color: var(--gold-500);
  background: rgba(255, 255, 255, 0.025);
}

.page-products .check-item:focus-within {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-products .check-box {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin: 5px 0 0;
  padding: 0;
  border: 2px solid var(--mist-cyan);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .check-box:checked {
  border-color: var(--cyan-400);
  background: var(--cyan-400);
  box-shadow: inset 0 0 0 3px var(--ink-900);
}

.page-products .check-box:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-products .check-no {
  font-size: 12px;
  line-height: 1.9;
  color: var(--mist-cyan);
}

.page-products .check-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-products .check-item:has(.check-box:checked) {
  border-left-color: var(--cyan-400);
}

.page-products .check-item:has(.check-box:checked) .check-no {
  color: var(--cyan-400);
}

.page-products .check-item:has(.check-box:checked) .check-text {
  color: var(--text-main);
}

@media (min-width: 1040px) {
  .page-products .check-grid {
    grid-template-columns: 212px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
  .page-products .check-aside {
    position: sticky;
    top: 96px;
  }
}

/* §05 机型对照表 */
.page-products .spec-wrap {
  overflow-x: auto;
  border: 2px solid var(--line-gold);
  box-shadow: var(--shadow-gold);
  background: var(--ink-900);
  -webkit-overflow-scrolling: touch;
}

.page-products .spec-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .spec-cap {
  caption-side: top;
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-200);
  border-bottom: 1px solid var(--line-gold);
}

.page-products .spec-table th {
  position: sticky;
  top: 0;
  padding: 11px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--gold-200);
  background: var(--ink-750);
  border-bottom: 1px dashed var(--line-gold);
  white-space: nowrap;
}

.page-products .spec-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-soft);
}

.page-products .spec-table tbody tr:nth-child(even) {
  background: var(--ink-750);
}

.page-products .spec-table tbody tr:hover {
  background: rgba(53, 224, 210, 0.06);
}

.page-products .spec-model {
  position: sticky;
  left: 0;
  background: inherit;
  color: var(--text-main);
  white-space: nowrap;
}

.page-products .spec-table tbody tr:nth-child(even) .spec-model {
  background: var(--ink-750);
}

.page-products .spec-table tbody tr:nth-child(odd) .spec-model {
  background: var(--ink-900);
}

.page-products .st {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-size: 13px;
}

.page-products .st-pass {
  color: var(--pass-green);
}

.page-products .st-pass::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pass-green);
}

.page-products .st-warn {
  color: var(--amber-500);
}

.page-products .st-warn::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 9px solid var(--amber-500);
}

.page-products .spec-note {
  margin-top: 18px;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-cyan);
}

/* §06 异常处理 */
.page-products .issue-grid {
  display: grid;
  gap: 12px;
}

.page-products .issue {
  border: 2px solid var(--line-soft);
  background: var(--ink-750);
  transition: border-color var(--t-fast);
}

.page-products .issue:hover,
.page-products .issue[open] {
  border-color: var(--line-gold);
}

.page-products .issue-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 16px 14px;
  list-style: none;
  cursor: pointer;
}

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

.page-products .issue-summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-products .issue-summary::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-left: 2px solid var(--gold-500);
  border-bottom: 2px solid var(--gold-500);
  transform: rotate(-45deg);
  transition: transform var(--t-mid);
}

.page-products .issue[open] .issue-summary::before {
  transform: rotate(135deg);
}

.page-products .issue-h {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.04em;
  color: #fff;
}

.page-products .issue-body {
  padding: 0 16px 18px 40px;
  border-top: 1px dashed var(--line-soft);
  margin-top: 2px;
  padding-top: 14px;
}

.page-products .issue-line {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .issue-line + .issue-line {
  margin-top: 8px;
}

.page-products .issue-k {
  display: inline-block;
  min-width: 40px;
  margin-right: 8px;
  font-size: 12px;
  color: var(--gold-500);
}

@media (min-width: 900px) {
  .page-products .issue-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* §07 下一步 */
.page-products .next-grid {
  display: grid;
  gap: 16px;
}

.page-products .next-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px 20px;
  border: 2px solid var(--line-gold);
  background: var(--ink-750);
  text-decoration: none;
  color: var(--text-main);
  transition: transform var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-products .next-card:hover,
.page-products .next-card:focus-visible {
  border-color: var(--gold-500);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}

.page-products .next-card:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-products .next-no {
  font-size: 12px;
  color: var(--gold-500);
}

.page-products .next-h {
  margin: 0;
  font-size: 18px;
  color: #fff;
}

.page-products .next-p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .next-go {
  margin-top: auto;
  padding-top: 8px;
  font-size: 13px;
  color: var(--cyan-400);
}

@media (min-width: 760px) {
  .page-products .next-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .next-card,
  .page-products .issue-summary::before {
    transition: none;
  }
  .page-products .next-card:hover,
  .page-products .next-card:focus-visible {
    transform: none;
  }
}