.page-downloads {
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.page-downloads a:focus-visible,
.page-downloads button:focus-visible,
.page-downloads summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.page-downloads .dl-crumb {
  padding-top: var(--space-4);
}

.page-downloads .dl-crumb .breadcrumb {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 首屏 ---------- */

.page-downloads .dl-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: var(--space-6) 0 var(--space-8);
}

.page-downloads .dl-hero-slant {
  position: absolute;
  z-index: -1;
  inset: -12% -6% 0 -6%;
  background:
    linear-gradient(150deg,
      var(--color-primary-soft) 0%,
      var(--color-highlight) 32%,
      var(--color-surface-alt) 64%,
      var(--color-surface) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 0 100%);
}

.page-downloads .dl-hero-inner {
  display: grid;
  gap: var(--space-6);
}

.page-downloads .dl-title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 0;
  max-width: 22ch;
}

.page-downloads .dl-lede {
  color: var(--color-ink-soft);
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
}

.page-downloads .dl-figures {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
}

.page-downloads .dl-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-left: var(--space-2);
  border-left: 2px solid color-mix(in srgb, var(--color-primary) 55%, transparent);
}

.page-downloads .dl-figure .stat-value {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
}

.page-downloads .dl-figure .stat-label {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  max-width: 24ch;
}

.page-downloads .dl-hero-side {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.page-downloads .dl-access {
  background: var(--color-highlight);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-1);
}

.page-downloads .dl-access-kicker {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.page-downloads .dl-access-text {
  margin: 0;
  color: var(--color-ink);
  max-width: 42ch;
}

.page-downloads .dl-access-note {
  margin: var(--space-2) 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-downloads .dl-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-deep);
  box-shadow: var(--shadow-1);
}

.page-downloads .dl-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-downloads .dl-media--4x3 { aspect-ratio: 4 / 3; }
.page-downloads .dl-media--16x9 { aspect-ratio: 16 / 9; }
.page-downloads .dl-media--1x1 { aspect-ratio: 1 / 1; }

/* ---------- 编号目录 ---------- */

.page-downloads .dl-catalog {
  background: var(--color-surface);
}

.page-downloads .dl-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-downloads .dl-filter .filter-chip {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  padding: 6px var(--space-2);
  background: var(--color-surface-alt);
  color: var(--color-ink-soft);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 160ms ease-out, color 160ms ease-out;
}

.page-downloads .dl-filter .filter-chip:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.page-downloads .dl-filter .filter-chip[aria-pressed="true"] {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-downloads .dl-list {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
}

.page-downloads .dl-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-md);
  border-bottom: 1px solid var(--color-line);
  transition: background-color 180ms ease-out, transform 180ms ease-out, box-shadow 180ms ease-out;
}

.page-downloads .dl-item:hover {
  background: var(--color-surface-alt);
  border-bottom-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-1);
}

.page-downloads .dl-num {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-primary);
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  transition: background-color 160ms ease-out, color 160ms ease-out;
}

.page-downloads .dl-item:focus-within .dl-num {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-downloads .dl-item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
}

.page-downloads .dl-item-link {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  text-decoration: none;
}

.page-downloads .dl-item-link:hover {
  color: var(--color-primary);
}

.page-downloads .dl-item-link::after {
  content: "→";
  display: inline-block;
  margin-left: var(--space-1);
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
}

.page-downloads .dl-item:hover .dl-item-link::after,
.page-downloads .dl-item:focus-within .dl-item-link::after {
  opacity: 1;
  transform: translateX(0);
}

.page-downloads .dl-item-tag {
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  padding: 3px var(--space-2);
  color: var(--color-ink-soft);
  background: var(--color-surface-deep);
}

.page-downloads .dl-item:nth-child(3n + 2) .dl-item-tag {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.page-downloads .dl-item:nth-child(3n + 3) .dl-item-tag {
  background: var(--color-highlight);
  color: var(--color-ink);
}

.page-downloads .dl-item-desc {
  margin: var(--space-1) 0 0;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-downloads .dl-item-meta {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  max-width: var(--measure);
}

.page-downloads .dl-meta-key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-right: var(--space-1);
}

/* ---------- 六类分组 ---------- */

.page-downloads .dl-groups {
  background: var(--color-surface-alt);
}

.page-downloads .dl-group-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-downloads .dl-group {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: var(--space-2) var(--space-3);
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-downloads .dl-group:nth-child(6n + 2) { background: var(--color-primary-soft); }
.page-downloads .dl-group:nth-child(6n + 3) { background: var(--color-highlight); }
.page-downloads .dl-group:nth-child(6n + 4) { background: var(--color-surface); }
.page-downloads .dl-group:nth-child(6n + 5) { background: var(--color-primary-soft); }
.page-downloads .dl-group:nth-child(6n + 6) { background: var(--color-highlight); }

.page-downloads .dl-group-num {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  line-height: 1;
  color: var(--color-primary);
  justify-self: start;
}

.page-downloads .dl-group-body {
  min-width: 0;
}

.page-downloads .dl-group-eyebrow {
  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-downloads .dl-group-body h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  line-height: var(--leading-heading);
}

.page-downloads .dl-group-rows {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-downloads .dl-group-row {
  display: grid;
  gap: 2px;
}

.page-downloads .dl-group-key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-downloads .dl-group-val {
  margin: 0;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-downloads .dl-group-val a,
.page-downloads .dl-back,
.page-downloads .dl-boundary-link a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  padding-bottom: 1px;
}

.page-downloads .dl-group-val a:hover,
.page-downloads .dl-back:hover,
.page-downloads .dl-boundary-link a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.page-downloads .dl-group-media {
  margin: var(--space-4) 0 0;
  max-width: 520px;
}

.page-downloads .dl-group-media--narrow {
  max-width: 340px;
}

.page-downloads .dl-back {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: var(--text-sm);
}

/* ---------- 获取方式与边界 ---------- */

.page-downloads .dl-boundary-section {
  background: var(--color-surface);
}

.page-downloads .dl-boundary {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-4);
  box-shadow: var(--shadow-2);
}

.page-downloads .dl-boundary-eyebrow {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
  text-transform: uppercase;
}

.page-downloads .dl-boundary h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-downloads .dl-boundary-text {
  margin: var(--space-3) 0 0;
  color: var(--color-contrast-ink);
  max-width: var(--measure);
}

.page-downloads .dl-ticks {
  display: block;
  height: 10px;
  margin: var(--space-4) 0;
  background-image: repeating-linear-gradient(90deg,
    var(--color-contrast-line) 0 1px,
    transparent 1px 14px);
}

.page-downloads .dl-boundary-grid {
  display: grid;
  gap: var(--space-4);
}

.page-downloads .dl-boundary-cell p {
  margin: var(--space-1) 0 0;
  color: var(--color-contrast-ink);
  max-width: var(--measure);
}

.page-downloads .dl-boundary-key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-contrast-accent);
}

.page-downloads .dl-disclosure {
  margin-top: var(--space-4);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-ink) 10%, transparent);
}

.page-downloads .dl-disclosure summary {
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-downloads .dl-disclosure p {
  margin: var(--space-2) 0 0;
  color: var(--color-contrast-ink);
  max-width: var(--measure);
}

.page-downloads .dl-boundary-link {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

.page-downloads .dl-boundary-link a {
  color: var(--color-contrast-accent);
  border-bottom-color: color-mix(in srgb, var(--color-contrast-accent) 55%, transparent);
}

.page-downloads .dl-boundary-link a:hover {
  color: var(--color-contrast-ink);
  border-bottom-color: var(--color-contrast-ink);
}

/* ---------- 文档索引入口 ---------- */

.page-downloads .dl-docs-section {
  background: var(--color-surface);
  padding-bottom: var(--space-8);
}

.page-downloads .dl-docs {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: var(--space-2) var(--space-3);
  background: var(--color-primary-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-3);
  box-shadow: var(--shadow-1);
}

.page-downloads .dl-docs-num {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  line-height: 1;
  color: var(--color-primary);
  justify-self: start;
}

.page-downloads .dl-docs-body h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  line-height: var(--leading-heading);
}

.page-downloads .dl-docs-body p {
  margin: var(--space-2) 0 0;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-downloads .dl-docs-body .btn {
  margin-top: var(--space-3);
  display: inline-block;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-downloads .dl-item {
    grid-template-columns: 72px minmax(0, 1fr);
    padding: var(--space-4) var(--space-3);
  }

  .page-downloads .dl-group,
  .page-downloads .dl-docs {
    grid-template-columns: 88px minmax(0, 1fr);
    padding: var(--space-6) var(--space-4);
  }

  .page-downloads .dl-boundary {
    padding: var(--space-6) var(--space-6);
  }

  .page-downloads .dl-boundary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-downloads .dl-hero {
    padding: var(--space-8) 0 calc(var(--section-y-lg) - var(--space-6));
  }

  .page-downloads .dl-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-downloads .dl-group-media {
    max-width: 100%;
  }

  .page-downloads .dl-group-media--narrow {
    max-width: 420px;
  }
}
<<<END>>>