.page-products {
  --pd-card-bg: #FFFFFF;
  --pd-index-w: 236px;
  --pd-bar: var(--indigo);
}

/* ---------- 面包屑 ---------- */
.page-products .pd-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 26px 0 0;
}

.page-products .pd-crumb li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-small);
  color: var(--grey);
}

.page-products .pd-crumb li + li::before {
  content: "/";
  color: var(--line);
  font-family: var(--font-mono);
}

.page-products .pd-crumb a {
  color: var(--indigo);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-products .pd-crumb a:hover {
  border-bottom-color: var(--indigo);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding: 28px 0 56px;
}

.page-products .pd-hero__tag {
  margin: 0 0 16px;
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  color: var(--indigo);
}

.page-products h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-h1);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 19ch;
}

.page-products .pd-hero__lede {
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--ink);
  max-width: 60ch;
}

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

.page-products .pd-hero__map {
  position: relative;
  background: var(--warm);
  border: 1px solid var(--line);
  padding: 20px 20px 14px;
}

.page-products .pd-hero__map svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pd-hero__mapnote {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  color: var(--grey);
}

/* ---------- 主体分栏 ---------- */
.page-products .pd-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: var(--section-gap);
}

/* ---------- 左侧索引 ---------- */
.page-products .pd-index {
  background: var(--warm);
  border-top: 2px solid var(--indigo);
  padding: 18px 18px 22px;
}

.page-products .pd-index__label {
  margin: 0 0 14px;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--grey);
}

.page-products .pd-index__nav {
  display: flex;
  flex-direction: column;
}

.page-products .pd-index__item {
  position: relative;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  align-items: baseline;
  gap: 8px;
  padding: 10px 6px 10px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 0.9375rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .pd-index__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--indigo);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-products .pd-index__item:hover {
  color: var(--indigo);
  background: rgba(31, 78, 121, 0.05);
}

.page-products .pd-index__item.is-current {
  color: var(--indigo-deep);
  background: rgba(31, 78, 121, 0.08);
  font-weight: 700;
}

.page-products .pd-index__item.is-current::before {
  opacity: 1;
}

.page-products .pd-index__no {
  font-size: 0.8125rem;
  color: var(--grey);
}

.page-products .pd-index__hint {
  margin: 16px 0 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--grey);
}

/* ---------- 章节通用 ---------- */
.page-products .pd-sec {
  margin-bottom: var(--section-gap);
}

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

.page-products .pd-sec__head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 26px;
}

.page-products .pd-sec__no {
  display: block;
  margin-bottom: 10px;
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  color: var(--indigo);
}

.page-products .pd-sec__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h2);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 30ch;
}

.page-products .pd-sec__desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--grey);
  max-width: 62ch;
}

.page-products .pd-sec__figure {
  margin: 0 0 32px;
}

/* ---------- 分类卡片墙 ---------- */
.page-products .pd-wall {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .pd-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: var(--pd-card-bg);
  border: 1px solid var(--line);
  padding: 18px 18px 20px 22px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pd-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--pd-bar);
}

.page-products .pd-card:hover {
  transform: translateY(-2px);
  border-color: var(--indigo);
}

.page-products .pd-card--jade { --pd-bar: var(--jade); }
.page-products .pd-card--sand { --pd-bar: var(--sand); }
.page-products .pd-card--grey { --pd-bar: var(--grey); }

.page-products .pd-card__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pd-card__no {
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--pd-bar);
}

.page-products .pd-card__scale {
  font-size: 0.75rem;
  color: var(--grey);
}

.page-products .pd-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h3);
  line-height: 1.4;
  color: var(--ink);
}

.page-products .pd-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--grey);
}

/* ---------- 标签命名规则 ---------- */
.page-products .pd-tagrule {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .pd-tagrule__body p {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--ink);
  max-width: 62ch;
}

.page-products .pd-tagrule__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pd-tagrule__list li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--grey);
}

.page-products .pd-tagrule__k {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--paper);
  background: var(--indigo);
  padding: 3px 8px;
  text-align: center;
}

.page-products .pd-tagrule__figure {
  margin: 0;
}

/* ---------- 资料类型 ---------- */
.page-products .pd-types {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .pd-type {
  background: var(--warm);
  border: 1px solid var(--line);
  padding: 20px 20px 22px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pd-type:hover {
  transform: translateY(-2px);
  border-color: var(--indigo);
}

.page-products .pd-type__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  border: 1px solid var(--indigo);
  color: var(--indigo);
}

.page-products .pd-type__icon svg {
  display: block;
  width: 22px;
  height: 22px;
}

.page-products .pd-type__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--ink);
}

.page-products .pd-type__fmt {
  margin: 0 0 10px;
  font-size: 0.8125rem;
  color: var(--indigo);
}

.page-products .pd-type__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--grey);
}

.page-products .pd-types__figure {
  margin: 32px 0 0;
}

/* ---------- 最近入库 ---------- */
.page-products .pd-recent {
  margin-top: 36px;
  border-top: 2px solid var(--ink);
  padding-top: 20px;
}

.page-products .pd-recent__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--ink);
}

.page-products .pd-recent__item {
  border-bottom: 1px solid var(--line);
}

.page-products .pd-recent__item[open] {
  background: var(--warm);
}

.page-products .pd-recent__sum {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 8px 14px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-products .pd-recent__sum::after {
  content: "＋";
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--indigo);
}

.page-products .pd-recent__item[open] .pd-recent__sum::after {
  content: "－";
}

.page-products .pd-recent__no {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-products .pd-recent__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}

.page-products .pd-recent__meta {
  font-size: 0.75rem;
  color: var(--jade);
}

.page-products .pd-recent__body {
  margin: 0;
  padding: 0 8px 18px 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--grey);
  max-width: 62ch;
}

/* ---------- 组合检索 ---------- */
.page-products .pd-filter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.page-products .pd-cond__item {
  background: var(--warm);
  padding: 20px 18px 24px;
}

.page-products .pd-cond__key {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 10px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--paper);
  background: var(--indigo);
}

.page-products .pd-cond__val {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
}

.page-products .pd-cond__note {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--grey);
}

.page-products .pd-filter__figure {
  margin: 0;
}

.page-products .pd-filter__sort {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--indigo);
  background: rgba(31, 78, 121, 0.06);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink);
  max-width: 70ch;
}

/* ---------- 年份归档 ---------- */
.page-products .pd-years__figure {
  margin: 0 0 26px;
}

.page-products .pd-years {
  background: var(--ink);
  color: var(--paper);
  padding: 28px 20px 26px;
}

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

.page-products .pd-years__item {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  align-items: center;
  gap: 6px 14px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.page-products .pd-years__item:last-child {
  border-bottom: 0;
}

.page-products .pd-years__yr {
  font-size: 0.9375rem;
  letter-spacing: 0.06em;
  color: var(--sand);
}

.page-products .pd-years__item.is-current .pd-years__yr {
  color: #E8705F;
  font-weight: 700;
}

.page-products .pd-years__bar {
  display: block;
  height: 6px;
  background: rgba(255, 255, 255, 0.14);
}

.page-products .pd-years__item.is-current .pd-years__bar {
  background: var(--sand);
}

.page-products .pd-years__meta {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: rgba(246, 247, 249, 0.68);
}

.page-products .pd-years__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(246, 247, 249, 0.72);
  max-width: 66ch;
}

/* ---------- 权限与订阅 ---------- */
.page-products .pd-access__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .pd-access__item {
  background: var(--paper);
  padding: 22px 20px 26px;
}

.page-products .pd-access__num {
  display: block;
  margin-bottom: 10px;
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  color: var(--indigo);
}

.page-products .pd-access__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--ink);
}

.page-products .pd-access__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--grey);
}

.page-products .pd-cta {
  margin-top: 26px;
  background: var(--indigo);
  padding: 28px 22px 30px;
}

.page-products .pd-cta__lede {
  margin: 0 0 20px;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: #FFFFFF;
  max-width: 60ch;
}

.page-products .pd-cta__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 图片通用 ---------- */
.page-products .figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--warm);
}

.page-products .pd-years__figure img {
  border-color: var(--line);
}

.page-products .figure__caption {
  margin-top: 10px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--grey);
  max-width: 62ch;
}

/* ---------- 平板 ---------- */
@media (min-width: 600px) {
  .page-products .pd-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-products .pd-recent__sum {
    grid-template-columns: 132px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 14px;
  }

  .page-products .pd-recent__sum::after {
    grid-column: 3;
    grid-row: 1;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-products .pd-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: 56px;
    padding: 44px 0 72px;
  }

  .page-products .pd-tagrule {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 44px;
    align-items: start;
  }

  .page-products .pd-filter {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    align-items: start;
  }

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

  .page-products .pd-cta {
    padding: 34px 32px 36px;
  }

  .page-products .pd-years {
    padding: 34px 30px 30px;
  }
}

/* ---------- 宽屏分栏 ---------- */
@media (min-width: 1060px) {
  .page-products .pd-layout {
    grid-template-columns: var(--pd-index-w) minmax(0, 1fr);
    gap: 52px;
  }

  .page-products .pd-index {
    position: sticky;
    top: 88px;
    padding: 22px 20px 26px;
  }

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

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

  .page-products .pd-years__item {
    grid-template-columns: 96px minmax(0, 1fr) 260px;
    gap: 20px;
  }

  .page-products .pd-years__meta {
    grid-column: 3;
    grid-row: 1;
    text-align: right;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .pd-card,
  .page-products .pd-type,
  .page-products .pd-index__item,
  .page-products .pd-index__item::before,
  .page-products .pd-crumb a {
    transition: none;
  }

  .page-products .pd-card:hover,
  .page-products .pd-type:hover {
    transform: none;
  }
}