.page-platform-modules {
  --pm-bar: 4px;
  display: block;
}

.page-platform-modules *,
.page-platform-modules *::before,
.page-platform-modules *::after {
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-platform-modules .pm-crumbs {
  padding: var(--space-3) 0 var(--space-1);
}

.page-platform-modules .pm-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-crumbs__list li + li::before {
  content: "/";
  margin: 0 var(--space-1);
  color: var(--color-line);
}

.page-platform-modules .pm-crumbs__list a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: color 160ms ease-out, border-color 160ms ease-out;
}

.page-platform-modules .pm-crumbs__list a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-platform-modules .pm-crumbs__list [aria-current="page"] {
  color: var(--color-ink);
}

/* ---------- 页首 ---------- */
.page-platform-modules .pm-hero {
  padding: var(--space-4) 0 var(--space-6);
}

.page-platform-modules .pm-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-platform-modules .pm-eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-platform-modules .pm-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-platform-modules .pm-lede {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 口径索引 ---------- */
.page-platform-modules .pm-index {
  border-top: var(--border-thick) solid var(--color-primary);
  padding-top: var(--space-2);
}

.page-platform-modules .pm-index__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-index__list {
  margin: 0;
}

.page-platform-modules .pm-index__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-1) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-index__key {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-platform-modules .pm-index__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
  text-align: right;
}

/* ---------- 章节导航 ---------- */
.page-platform-modules .pm-toc {
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-toc__list {
  display: flex;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-platform-modules .pm-toc__list::-webkit-scrollbar {
  display: none;
}

.page-platform-modules .pm-toc__link {
  display: block;
  padding: var(--space-2) 0;
  white-space: nowrap;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thick) solid transparent;
  transition: color 160ms ease-out, border-color 160ms ease-out;
}

.page-platform-modules .pm-toc__link:hover {
  color: var(--color-ink);
}

.page-platform-modules .pm-toc__link[aria-current="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- 区块骨架 ---------- */
.page-platform-modules .pm-sec {
  padding: var(--section-y) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-sec--first {
  border-top: none;
}

.page-platform-modules .pm-sec--last {
  padding-bottom: var(--section-y-lg);
}

.page-platform-modules .pm-sec__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-platform-modules .pm-sec__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
}

.page-platform-modules .pm-h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-platform-modules .pm-sec__lede {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 通用图像容器 ---------- */
.page-platform-modules .pm-figure {
  margin: 0;
}

.page-platform-modules .pm-media {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-deep);
  aspect-ratio: 3 / 2;
}

.page-platform-modules .pm-media--wide {
  aspect-ratio: 14 / 9;
}

.page-platform-modules .pm-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-platform-modules .pm-media__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: var(--space-1) var(--space-2);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
}

.page-platform-modules .pm-figure figcaption {
  margin-top: var(--space-2);
  max-width: var(--measure);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-figure--wide {
  margin-bottom: var(--space-6);
}

/* ---------- 01 模块范围 ---------- */
.page-platform-modules .pm-position {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-platform-modules .pm-accent {
  border-left: var(--pm-bar) solid var(--color-primary);
  padding-left: var(--space-3);
  margin-bottom: var(--space-4);
}

.page-platform-modules .pm-accent p {
  margin: 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-platform-modules .pm-scope {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-scope li {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-platform-modules .pm-scope__k {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  padding-top: 3px;
}

/* ---------- 02 字段结构 ---------- */
.page-platform-modules .pm-fields {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-platform-modules .pm-field {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  column-gap: var(--space-2);
  row-gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-field__no {
  grid-column: 1;
  grid-row: 1 / span 3;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.page-platform-modules .pm-field__name {
  grid-column: 2;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-ink);
}

.page-platform-modules .pm-field__type {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-field__desc {
  grid-column: 2;
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.78;
  color: var(--color-ink-soft);
}

/* ---------- 03 场馆分类 ---------- */
.page-platform-modules .pm-classes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-platform-modules .pm-career {
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-platform-modules .pm-career + .pm-career {
  margin-top: var(--space-3);
}

.page-platform-modules .pm-career__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-career__summary::-webkit-details-marker {
  display: none;
}

.page-platform-modules .pm-career__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-platform-modules .pm-career__toggle {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-career__toggle::before {
  content: "展开";
}

.page-platform-modules .pm-career[open] .pm-career__toggle::before {
  content: "收起";
}

.page-platform-modules .pm-career[open] .pm-career__toggle {
  color: var(--color-primary);
}

.page-platform-modules .pm-venues {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-platform-modules .pm-venue {
  position: relative;
  padding: var(--space-3) 0 var(--space-3) var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  transition: background-color 180ms ease-out;
}

.page-platform-modules .pm-venue::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity 180ms ease-out;
}

.page-platform-modules .pm-venue:hover {
  background: var(--color-surface-alt);
}

.page-platform-modules .pm-venue:hover::before {
  opacity: 1;
}

.page-platform-modules .pm-venue__name {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-ink);
}

.page-platform-modules .pm-venue__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-4);
  margin: 0;
}

.page-platform-modules .pm-venue__meta > div {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.page-platform-modules .pm-venue__meta dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-venue__meta dd {
  margin: 0;
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-ink-soft);
}

.page-platform-modules .pm-classes__figure {
  align-self: start;
}

/* ---------- 04 主场变更 ---------- */
.page-platform-modules .pm-changes {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-platform-modules .pm-change {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  column-gap: var(--space-2);
  row-gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-change__no {
  grid-column: 1;
  grid-row: 1 / span 3;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-primary);
}

.page-platform-modules .pm-change__title {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-ink);
}

.page-platform-modules .pm-change__meta {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-change__desc {
  grid-column: 2;
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.78;
  color: var(--color-ink-soft);
}

/* ---------- 05 检索条件 ---------- */
.page-platform-modules .pm-query {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-platform-modules .pm-query__item {
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-platform-modules .pm-query__key {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-query__val {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

.page-platform-modules .pm-query__note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-platform-modules .pm-limits {
  margin-top: var(--space-6);
  border-top: var(--border-thick) solid var(--color-primary);
  padding-top: var(--space-3);
}

.page-platform-modules .pm-limits__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-platform-modules .pm-limits__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-platform-modules .pm-limits__list li {
  position: relative;
  padding: var(--space-1) 0 var(--space-1) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-platform-modules .pm-limits__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--space-1) + 10px);
  width: 8px;
  height: 2px;
  background: var(--color-primary);
}

/* ---------- 06 相邻模块 ---------- */
.page-platform-modules .pm-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
}

.page-platform-modules .pm-next__link {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-left: var(--pm-bar) solid var(--color-line);
  text-decoration: none;
  transition: border-color 180ms ease-out, background-color 180ms ease-out;
}

.page-platform-modules .pm-next__link:hover {
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
}

.page-platform-modules .pm-next__step {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-platform-modules .pm-next__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-platform-modules .pm-next__desc {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-platform-modules .pm-note {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-platform-modules .pm-query {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-6);
  }

  .page-platform-modules .pm-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-platform-modules .pm-hero {
    padding: var(--space-6) 0 var(--space-8);
  }

  .page-platform-modules .pm-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: var(--space-6);
    align-items: end;
  }

  .page-platform-modules .pm-title {
    font-size: var(--text-3xl);
  }

  .page-platform-modules .pm-position {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    column-gap: var(--space-8);
  }

  .page-platform-modules .pm-position__figure {
    margin-top: var(--space-8);
  }

  .page-platform-modules .pm-field {
    grid-template-columns: 3rem 12rem 6rem minmax(0, 1fr);
    row-gap: 0;
    align-items: baseline;
  }

  .page-platform-modules .pm-field__no {
    grid-column: 1;
    grid-row: auto;
  }

  .page-platform-modules .pm-field__name {
    grid-column: 2;
  }

  .page-platform-modules .pm-field__type {
    grid-column: 3;
  }

  .page-platform-modules .pm-field__desc {
    grid-column: 4;
  }

  .page-platform-modules .pm-classes {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: var(--space-8);
  }

  .page-platform-modules .pm-change {
    grid-template-columns: 3rem 10rem 6rem minmax(0, 1fr);
    row-gap: 0;
    align-items: baseline;
  }

  .page-platform-modules .pm-change__no {
    grid-column: 1;
    grid-row: auto;
  }

  .page-platform-modules .pm-change__title {
    grid-column: 2;
  }

  .page-platform-modules .pm-change__meta {
    grid-column: 3;
  }

  .page-platform-modules .pm-change__desc {
    grid-column: 4;
  }

  .page-platform-modules .pm-query {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-platform-modules .pm-next {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}