.page-products {
  --dl-side-w: 252px;
  background: var(--night);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  padding-top: var(--step-4);
  padding-bottom: var(--step-5);
  border-bottom: 1px solid var(--line-dark);
}

.page-products .dl-hero .crumbs {
  color: var(--paper-56);
}

.page-products .dl-hero .crumbs a {
  color: var(--paper-72);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-products .dl-hero .crumbs a:hover,
.page-products .dl-hero .crumbs a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-products .dl-hero .eyebrow {
  margin-top: var(--step-4);
}

.page-products .dl-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 8vw, 88px);
  font-weight: 900;
  line-height: .98;
  letter-spacing: -.03em;
  margin: 12px 0 var(--step-3);
  color: var(--paper);
}

.page-products .dl-hero .lead {
  max-width: 32em;
  font-size: 18px;
  line-height: 1.75;
  color: var(--paper-72);
  margin: 0;
}

.page-products .dl-hero__specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: var(--step-4) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.page-products .dl-hero__specs li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--night);
}

.page-products .dl-spec__num {
  font-size: clamp(19px, 3vw, 26px);
  font-weight: 700;
  color: var(--lime);
  letter-spacing: -.01em;
}

.page-products .dl-spec__label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lead);
  text-transform: uppercase;
}

/* ---------- 主体两栏 ---------- */
.page-products .dl-section {
  padding-top: var(--step-5);
  padding-bottom: var(--step-6);
}

.page-products .dl-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--step-4);
}

.page-products .dl-side__sticky {
  border-top: 1px solid var(--line-dark);
  padding-top: var(--step-2);
}

.page-products .dl-families {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: var(--step-2) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .dl-family {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  color: var(--paper-72);
}

.page-products .dl-family__no {
  font-size: 11px;
  color: var(--lime);
  letter-spacing: .06em;
}

.page-products .dl-side__note {
  margin: var(--step-2) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-56);
}

/* ---------- 区块骨架 ---------- */
.page-products .dl-block {
  padding-top: var(--step-3);
  border-top: 2px solid var(--lime);
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-products .dl-block + .dl-block {
  margin-top: var(--step-6);
}

.page-products .dl-block h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
  margin: 10px 0 var(--step-2);
  color: var(--paper);
}

.page-products .dl-block h3 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
  margin: var(--step-3) 0 6px;
  color: var(--paper);
}

.page-products .dl-block h3:first-child {
  margin-top: 0;
}

.page-products .dl-intro {
  max-width: 34em;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-products .dl-note {
  margin: var(--step-3) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper-56);
}

.page-products .dl-tail {
  margin: var(--step-3) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper-56);
}

.page-products .dl-block a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 242, 78, .4);
  transition: border-color .16s var(--ease);
}

.page-products .dl-block a:hover,
.page-products .dl-block a:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 图片容器 ---------- */
.page-products .dl-figure {
  margin: var(--step-3) 0 0;
  border-color: var(--line-dark);
}

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

.page-products .dl-figure .frame__caption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--paper-56);
}

.page-products .dl-figure--list {
  max-width: 780px;
}

.page-products .dl-figure--short,
.page-products .dl-figure--vol {
  max-width: 520px;
}

.page-products .dl-figure--square {
  max-width: 340px;
}

/* ---------- 条目列表 ---------- */
.page-products .dl-list {
  display: grid;
  gap: var(--step-2);
  margin-top: var(--step-4);
}

.page-products .dl-item {
  border: 1px solid var(--line-dark);
  background: rgba(18, 69, 47, .42);
  box-shadow: var(--shadow-1);
  transition: border-color .16s var(--ease);
}

.page-products .dl-item[open] {
  border-color: var(--grass-mid);
}

.page-products .dl-item__summary {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .dl-item__summary::-webkit-details-marker {
  display: none;
}

.page-products .dl-item__summary::marker {
  content: "";
}

.page-products .dl-item__summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-products .dl-item__mark {
  position: relative;
  width: 14px;
  height: 14px;
  border: 1px solid var(--grass-mid);
}

.page-products .dl-item__mark::before,
.page-products .dl-item__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--lime);
}

.page-products .dl-item__mark::before {
  width: 8px;
  height: 1px;
}

.page-products .dl-item__mark::after {
  width: 1px;
  height: 8px;
  transition: opacity .16s var(--ease);
}

.page-products .dl-item[open] .dl-item__mark::after {
  opacity: 0;
}

.page-products .dl-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  min-width: 0;
}

.page-products .dl-item__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .dl-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .dl-item__meta {
  flex: 1 1 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 13px;
  color: var(--paper-56);
}

.page-products .dl-item__meta .mono {
  color: var(--lime);
  font-weight: 700;
}

.page-products .dl-item__body {
  padding: 0 16px 18px;
}

.page-products .dl-item__body p {
  max-width: 40em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-72);
}

.page-products .tag {
  border-color: var(--line-dark);
  color: var(--paper-72);
  background: rgba(242, 239, 230, .06);
}

.page-products .tag--lime {
  border-color: var(--lime);
  color: var(--lime);
}

.page-products .tag--brick {
  border-color: var(--brick);
  color: #E3A79C;
}

/* ---------- 字段行 ---------- */
.page-products .fieldrows {
  margin-top: var(--step-2);
  border-top: 1px solid var(--line-dark);
}

.page-products .fieldrow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14px;
  line-height: 1.6;
}

.page-products .fieldrow--head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--lead);
}

.page-products .fieldrow__name {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
}

.page-products .fieldrow__spec {
  color: var(--paper-72);
}

.page-products .fieldrow__freq {
  color: var(--paper-56);
}

/* ---------- 图文错位块 ---------- */
.page-products .dl-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--step-4);
  margin-top: var(--step-2);
  align-items: start;
}

.page-products .dl-split__text p {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper-72);
}

.page-products .dl-split .dl-figure {
  margin-top: 0;
}

.page-products .dl-tree-wrap {
  margin-top: var(--step-3);
  padding-top: var(--step-2);
  border-top: 1px solid var(--line-dark);
}

.page-products .dl-tree {
  display: block;
  width: 100%;
  max-width: 380px;
  height: auto;
  color: var(--grass-mid);
}

.page-products .dl-tree__end {
  fill: var(--lime);
}

.page-products .dl-tree__cap {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--paper-56);
}

/* ---------- 清单块 ---------- */
.page-products .dl-checks {
  margin: var(--step-3) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-products .dl-checks li {
  padding: 8px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-72);
}

.page-products .dl-checks .mono {
  color: var(--lime);
  font-weight: 700;
  margin-right: 6px;
}

.page-products .dl-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--step-3);
  margin-top: var(--step-3);
}

.page-products .dl-cols p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-72);
}

/* ---------- 年鉴卷次 ---------- */
.page-products .dl-volumes {
  margin: var(--step-3) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-products .dl-volume {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 15px;
}

.page-products .dl-volume__no {
  font-size: 12px;
  color: var(--lime);
  letter-spacing: .06em;
}

.page-products .dl-volume__name {
  color: var(--paper);
}

.page-products .dl-volume__tag {
  font-size: 12px;
  color: var(--paper-56);
  letter-spacing: .04em;
}

.page-products .dl-volume__tag--lime {
  color: var(--lime);
}

.page-products .dl-volume--online {
  background: rgba(198, 242, 78, .05);
}

/* ---------- 引用区块 ---------- */
.page-products .dl-cite {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--step-3);
  margin-top: var(--step-2);
}

.page-products .dl-cite__box {
  padding: var(--step-3);
  border: 1px solid var(--line-dark);
  background: rgba(18, 69, 47, .32);
}

.page-products .dl-cite__box h3 {
  margin-top: 0;
}

.page-products .dl-cite__box p {
  max-width: 32em;
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper-72);
}

.page-products .dl-cite__sample {
  margin-bottom: 10px !important;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--lime);
  border: 1px dashed var(--grass-mid);
  background: rgba(11, 27, 43, .6);
  overflow-wrap: anywhere;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-products .dl-hero__specs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .dl-item__head {
    flex-wrap: nowrap;
  }

  .page-products .dl-item__meta {
    flex: 0 0 auto;
    margin-left: auto;
    justify-content: flex-end;
  }

  .page-products .fieldrow {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 1fr);
    align-items: baseline;
  }

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

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

  .page-products .dl-split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-products .dl-split--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  }

  .page-products .dl-split--reverse .dl-figure {
    order: -1;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-products .dl-layout {
    grid-template-columns: var(--dl-side-w) minmax(0, 1fr);
    gap: var(--step-5);
    align-items: start;
  }

  .page-products .dl-side__sticky {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-products .dl-families {
    flex-direction: column;
    gap: 0;
    margin-top: var(--step-2);
  }

  .page-products .dl-family {
    justify-content: flex-start;
    padding: 8px 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .page-products .dl-side__note {
    margin-top: var(--step-2);
  }

  .page-products .dl-hero {
    padding-top: var(--step-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-item,
  .page-products .dl-item__mark::after,
  .page-products .dl-block a,
  .page-products .dl-hero .crumbs a {
    transition: none;
  }
}