.page-products {
  --pd-gap: clamp(1rem, 2.6vw, 1.75rem);
  --pd-maxw: 66ch;
  background: var(--ink-900);
  color: var(--paper);
}

.page-products img {
  max-width: 100%;
  height: auto;
}

.page-products [id] {
  scroll-margin-top: 5.5rem;
}

.page-products .pd-crumb-wrap {
  padding-top: clamp(0.9rem, 3vw, 1.6rem);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.75rem, 5vw, 3.5rem) clamp(2.25rem, 6vw, 4.5rem);
  border-bottom: 2px solid var(--hairline);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(46, 217, 255, 0.15), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(124, 92, 255, 0.16), transparent 68%),
    var(--ink-900);
}

.page-products .pd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    90deg,
    rgba(234, 242, 248, 0.055) 0 1px,
    transparent 1px 96px
  );
}

.page-products .pd-hero__grid {
  position: relative;
  display: grid;
  gap: var(--pd-gap);
}

.page-products .pd-hero h1 {
  margin: 0.55rem 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.page-products .pd-hero__lead {
  max-width: 48ch;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.7vw, 1.05rem);
  line-height: 1.8;
}

.page-products .pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.7rem;
}

.page-products .pd-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.75rem;
  margin: 2rem 0 0;
  padding: 1.15rem 0 0;
  border-top: 1px solid var(--hairline);
  list-style: none;
}

.page-products .pd-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-products .pd-hero__stats .mono {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--green);
}

.page-products .pd-hero__stats li:nth-child(2) .mono { color: var(--cyan); }
.page-products .pd-hero__stats li:nth-child(3) .mono { color: var(--amber); }
.page-products .pd-hero__stats li:nth-child(4) .mono { color: var(--orange); }

.page-products .pd-hero__figure {
  margin: 0;
  padding: 0.5rem;
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard-lg);
}

.page-products .pd-hero__figure img {
  display: block;
  width: 100%;
  border: 1px solid var(--hairline);
  object-fit: cover;
}

.page-products .pd-hero__figure figcaption {
  padding: 0.6rem 0.25rem 0.1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- 总览：左侧固定索引 + 右侧资料卡 ---------- */
.page-products .pd-overview {
  padding-block: clamp(2.25rem, 6vw, 4rem);
}

.page-products .pd-layout {
  display: grid;
  gap: var(--pd-gap);
  align-items: start;
}

.page-products .pd-index {
  padding: 1rem 1rem 0.9rem;
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-products .pd-index__label {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}

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

.page-products .pd-index__list li + li {
  border-top: 1px dashed var(--hairline);
}

.page-products .pd-index__list a {
  display: flex;
  gap: 0.7rem;
  padding: 0.6rem 0;
  color: var(--paper);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 180ms ease;
}

.page-products .pd-index__list a .mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  padding-top: 0.15rem;
}

.page-products .pd-index__list a:hover,
.page-products .pd-index__list a:focus-visible {
  color: var(--green);
}

.page-products .pd-index__hint {
  margin: 0.85rem 0 0;
  padding-top: 0.7rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .pd-cards {
  display: flex;
  flex-direction: column;
  gap: var(--pd-gap);
}

.page-products .pd-card {
  position: relative;
  padding: clamp(1.05rem, 2.6vw, 1.6rem);
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-products .pd-card::before {
  content: "";
  position: absolute;
  top: -2px;
  bottom: -2px;
  left: -2px;
  width: 6px;
  background: var(--cyan);
}

.page-products .pd-card:nth-child(2)::before { background: var(--violet); }
.page-products .pd-card:nth-child(3)::before { background: var(--green); }
.page-products .pd-card:nth-child(4)::before { background: var(--orange); }
.page-products .pd-card:nth-child(5)::before { background: var(--amber); }

.page-products .pd-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-products .pd-card h3 {
  margin: 0.35rem 0 0.5rem;
  font-family: var(--font-head);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .pd-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .pd-card p.pd-card__no {
  color: var(--muted);
}

.page-products .pd-card__link {
  display: inline-block;
  margin-top: 0.9rem;
  padding-bottom: 0.15rem;
  border-bottom: 2px solid var(--cyan);
  color: var(--paper);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-products .pd-card__link:hover,
.page-products .pd-card__link:focus-visible {
  color: var(--cyan);
  border-color: var(--green);
}

/* ---------- 通用区块头与图 ---------- */
.page-products .pd-head {
  max-width: var(--pd-maxw);
  margin-bottom: clamp(1.4rem, 4vw, 2.4rem);
}

.page-products .pd-head h2,
.page-products .pd-detail h2,
.page-products .pd-check__grid h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.6vw, 2.25rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-products .pd-head p {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-products .pd-figure {
  margin: 0;
  padding: 0.5rem;
  border: 2px solid var(--ink-700);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-products .pd-figure img {
  display: block;
  width: 100%;
  object-fit: cover;
}

.page-products .pd-figure figcaption {
  padding: 0.55rem 0.2rem 0.05rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
}

/* ---------- 双端入口 ---------- */
.page-products .pd-entry-sec {
  padding-block: clamp(2.25rem, 6vw, 4rem);
  border-block: 2px solid var(--hairline);
  background: linear-gradient(180deg, rgba(23, 50, 77, 0.5), rgba(7, 17, 31, 0) 72%);
}

.page-products .pd-detail {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-products .pd-detail__lead {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-products .pd-steps {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-products .pd-steps li {
  padding: 0.85rem 1rem;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--green);
  background: var(--ink-800);
}

.page-products .pd-steps .mono {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--green);
}

.page-products .pd-steps h3 {
  margin: 0.25rem 0 0.3rem;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
}

.page-products .pd-steps p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .pd-detail__note {
  margin: 1.1rem 0 0;
  padding-left: 0.85rem;
  border-left: 2px solid var(--amber);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 标签模板 ---------- */
.page-products .pd-tags-sec {
  padding-block: clamp(2.25rem, 6vw, 4rem);
}

.page-products .pd-tags__grid {
  display: grid;
  gap: clamp(1.25rem, 3.5vw, 2.25rem);
  align-items: start;
}

.page-products .pd-fields {
  display: grid;
  gap: 0.8rem;
}

.page-products .pd-field {
  padding: 0.95rem 1rem;
  border: 2px solid var(--ink-700);
  border-left-width: 6px;
  background: var(--ink-800);
}

.page-products .pd-field--color { border-left-color: var(--cyan); }
.page-products .pd-field--pos { border-left-color: var(--violet); }
.page-products .pd-field--state { border-left-color: var(--green); }

.page-products .pd-field__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-products .pd-field h3 {
  margin: 0.28rem 0 0.4rem;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 800;
}

.page-products .pd-field p:last-child {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .pd-levels__title {
  margin: 1.6rem 0 0;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-products .pd-levels {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-levels li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.7rem;
  border: 1px solid var(--hairline);
  background: var(--ink-800);
  font-size: 0.84rem;
}

.page-products .pd-levels li .mono {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--violet);
}

.page-products .pd-levels li:not(:last-child)::after {
  content: "›";
  margin-left: 0.15rem;
  color: var(--muted);
}

.page-products .pd-levels__note {
  margin: 0.9rem 0 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 联赛条带 ---------- */
.page-products .pd-leagues-sec {
  padding-block: clamp(2.25rem, 6vw, 4rem);
  border-block: 2px solid var(--hairline);
  background:
    linear-gradient(180deg, rgba(23, 50, 77, 0.65), rgba(7, 17, 31, 0.9)),
    var(--ink-900);
}

.page-products .pd-strip-mask {
  position: relative;
}

.page-products .pd-strip-mask::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: clamp(2rem, 9vw, 6rem);
  background: linear-gradient(90deg, rgba(7, 17, 31, 0), var(--ink-900));
  pointer-events: none;
}

.page-products .pd-strip {
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}

.page-products .pd-strip .strip__item {
  border: 2px solid var(--ink-700);
  border-bottom: 3px solid var(--cyan);
  background: var(--ink-800);
  transition: border-color 200ms ease, color 200ms ease;
}

.page-products .pd-strip .strip__item:nth-child(3n) { border-bottom-color: var(--violet); }
.page-products .pd-strip .strip__item:nth-child(4n) { border-bottom-color: var(--green); }

.page-products .pd-strip .strip__item:hover,
.page-products .pd-strip .strip__item:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-products .pd-strip .strip__item .mono {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.page-products .pd-strip__hint {
  margin: 0.75rem 0 0;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-products .pd-leagues__figure {
  margin-top: clamp(1.25rem, 3.5vw, 2rem);
}

.page-products .pd-leagues__copy {
  display: grid;
  gap: 0.8rem;
  margin-top: clamp(1.1rem, 3vw, 1.75rem);
  max-width: var(--pd-maxw);
}

.page-products .pd-leagues__copy p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .pd-leagues__copy a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

.page-products .pd-leagues__copy a:hover,
.page-products .pd-leagues__copy a:focus-visible {
  color: var(--green);
  border-color: var(--green);
}

/* ---------- 故障对照 ---------- */
.page-products .pd-faults-sec {
  padding-block: clamp(2.25rem, 6vw, 4rem);
}

.page-products .pd-faults__figure {
  margin-bottom: clamp(1.4rem, 4vw, 2.25rem);
}

.page-products .pd-faults__groups {
  display: grid;
  gap: 1.4rem;
}

.page-products .pd-fgroup h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.65rem;
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-products .pd-fgroup h3 .mono {
  padding: 0.1rem 0.42rem;
  border: 1px solid var(--orange);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--orange);
}

.page-products .pd-fault {
  margin-bottom: 0.55rem;
  border: 2px solid var(--ink-700);
  border-left: 6px solid var(--orange);
  background: var(--ink-800);
}

.page-products .pd-fault summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-products .pd-fault summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--orange);
}

.page-products .pd-fault[open] summary::after {
  content: "–";
}

.page-products .pd-fault[open] summary {
  border-bottom: 1px solid var(--hairline);
  background: rgba(255, 90, 60, 0.1);
}

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

.page-products .pd-fault__body {
  padding: 0.75rem 0.9rem 0.9rem;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .pd-fault__body p {
  margin: 0 0 0.5rem;
}

.page-products .pd-fault__body p:last-child {
  margin-bottom: 0;
}

.page-products .pd-fault__body strong {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 设备清单 ---------- */
.page-products .pd-check-sec {
  padding-block: clamp(2.25rem, 6vw, 4rem) clamp(2.75rem, 7vw, 5rem);
  border-top: 2px solid var(--hairline);
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.12), rgba(7, 17, 31, 0) 60%);
}

.page-products .pd-check__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-products .pd-check__lead {
  margin: 0.9rem 0 0;
  max-width: var(--pd-maxw);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .pd-checklist {
  display: grid;
  gap: 0.65rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pd-checklist li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.85rem 1rem;
  border: 1px solid var(--hairline);
  background: var(--ink-800);
  transition: border-color 200ms ease;
}

.page-products .pd-checklist li:focus-within {
  border-color: var(--cyan);
}

.page-products .pd-checklist input[type="checkbox"] {
  width: 1.15rem;
  height: 1.15rem;
  margin: 0.2rem 0 0;
  accent-color: var(--green);
  cursor: pointer;
}

.page-products .pd-checklist label {
  font-size: 0.9rem;
  line-height: 1.6;
  font-weight: 600;
  cursor: pointer;
}

.page-products .pd-checklist label span {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.83rem;
  font-weight: 400;
  color: var(--muted);
}

.page-products .pd-checklist input:checked + label {
  color: var(--green);
}

.page-products .pd-cta {
  padding: clamp(1.15rem, 3vw, 1.6rem);
  border: 2px solid var(--green);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-products .pd-cta h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-size: 1.08rem;
  font-weight: 800;
}

.page-products .pd-cta p {
  margin: 0 0 1.1rem;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .pd-cta__links {
  display: grid;
  gap: 0.5rem;
}

.page-products .pd-cta__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--green);
  color: var(--paper);
  font-size: 0.87rem;
  text-decoration: none;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.page-products .pd-cta__links a .mono {
  font-family: var(--font-mono);
  color: var(--green);
}

.page-products .pd-cta__links a:hover,
.page-products .pd-cta__links a:focus-visible {
  border-color: var(--cyan);
  background: rgba(46, 217, 255, 0.08);
  color: var(--cyan);
}

.page-products .pd-cta__links a:hover .mono,
.page-products .pd-cta__links a:focus-visible .mono {
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .pd-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pd-faults__groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem 2rem;
  }
}

@media (min-width: 900px) {
  .page-products .pd-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-products .pd-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(1.75rem, 3.5vw, 3rem);
  }

  .page-products .pd-index {
    position: sticky;
    top: 5.5rem;
  }

  .page-products .pd-card:nth-child(even) {
    width: 88%;
    align-self: flex-end;
  }

  .page-products .pd-detail {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }

  .page-products .pd-tags__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    gap: clamp(1.75rem, 4vw, 3rem);
  }

  .page-products .pd-check__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-index__list a,
  .page-products .pd-card__link,
  .page-products .pd-checklist li,
  .page-products .pd-cta__links a,
  .page-products .pd-strip .strip__item {
    transition: none;
  }
}