.page-downloads {
  --dl-rail-w: 56px;
}

/* ============ 首屏 ============ */
.page-downloads .dl-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: var(--space-6) var(--space-8);
}

.page-downloads .dl-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 42%;
  right: -16%;
  bottom: -28%;
  height: 68%;
  background: color-mix(in srgb, var(--color-primary) 34%, transparent);
  border-radius: var(--radius-lg);
  transform: rotate(-5deg);
  pointer-events: none;
}

.page-downloads .dl-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -14%;
  top: -18%;
  width: 44%;
  height: 48%;
  background: color-mix(in srgb, var(--color-accent) 22%, transparent);
  border-radius: var(--radius-lg);
  transform: rotate(4deg);
  pointer-events: none;
}

.page-downloads .dl-hero .breadcrumb,
.page-downloads .dl-hero .breadcrumb-list,
.page-downloads .dl-hero .breadcrumb a {
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-downloads .dl-hero .breadcrumb a:hover {
  color: var(--color-contrast-accent);
}

.page-downloads .dl-hero .eyebrow {
  color: var(--color-contrast-accent);
}

.page-downloads .dl-hero-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-contrast-ink);
  max-width: 20ch;
  margin: var(--space-2) 0 0;
  text-wrap: balance;
}

.page-downloads .dl-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

/* 编号轨道 */
.page-downloads .dl-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-downloads .dl-rail li {
  flex: 0 0 auto;
}

.page-downloads .dl-rail a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
  text-decoration: none;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  transition: color 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

.page-downloads .dl-rail a:hover,
.page-downloads .dl-rail a:focus-visible {
  color: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
  background: color-mix(in srgb, var(--color-contrast-accent) 12%, transparent);
}

.page-downloads .dl-rail-num {
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-downloads .dl-rail-txt {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

/* 首屏正文 */
.page-downloads .dl-hero-lede {
  color: color-mix(in srgb, var(--color-contrast-ink) 86%, transparent);
  margin: 0;
}

.page-downloads .dl-peek {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-downloads .dl-peek li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  padding: var(--space-2) var(--space-3);
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
  border-left: var(--border-thick) solid var(--color-contrast-accent);
  border-radius: var(--radius-sm);
}

.page-downloads .dl-peek-num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-contrast-accent);
}

.page-downloads .dl-peek-body {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-downloads .dl-peek-body strong {
  color: var(--color-contrast-ink);
  font-weight: 600;
}

/* 首屏数字 */
.page-downloads .dl-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

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

.page-downloads .dl-stat-cap {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
  margin: 0 0 var(--space-1);
}

.page-downloads .dl-stat-num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1.15;
  color: var(--color-contrast-accent);
  margin: 0;
  white-space: nowrap;
}

/* 首屏图片 */
.page-downloads .dl-hero-figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-2);
  background: var(--color-contrast-surface);
}

.page-downloads .dl-hero-media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-downloads .dl-fig-tag {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  display: inline-block;
  max-width: calc(100% - var(--space-4));
  padding: calc(var(--space-1) * 0.6) var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-contrast-ink);
  background: color-mix(in srgb, var(--color-contrast-surface) 86%, transparent);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-pill);
}

/* ============ 分组泳道 ============ */
.page-downloads .dl-group {
  scroll-margin-top: var(--space-8);
}

.page-downloads .dl-group-head {
  display: grid;
  gap: var(--space-4);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-downloads .dl-group-kicker {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-2);
}

.page-downloads .dl-group-num {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  letter-spacing: 0.06em;
  color: var(--color-primary);
  padding: 2px 10px;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 42%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-primary-soft) 62%, transparent);
}

.page-downloads .dl-group-count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-downloads .dl-group .section-title {
  margin: 0 0 var(--space-2);
}

.page-downloads .dl-group .lede {
  margin: 0;
  color: var(--color-ink-soft);
}

.page-downloads .lede a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-downloads .lede a:hover {
  color: var(--color-accent);
}

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

/* 条目网格 */
.page-downloads .dl-items {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-downloads .dl-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
}

.page-downloads .dl-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: color-mix(in srgb, var(--color-primary) 44%, var(--color-line));
}

.page-downloads .dl-item-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: 0;
}

.page-downloads .dl-item-for {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-primary);
  padding-left: var(--space-2);
  border-left: var(--border-thick) solid color-mix(in srgb, var(--color-primary) 55%, transparent);
}

.page-downloads .dl-item-desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-downloads .dl-item-more {
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-downloads .dl-item-more summary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  cursor: pointer;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-primary);
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 44%, transparent);
  padding-bottom: 2px;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-downloads .dl-item-more summary::-webkit-details-marker {
  display: none;
}

.page-downloads .dl-item-more summary::before {
  content: "+";
  font-family: var(--font-mono);
  line-height: 1;
}

.page-downloads .dl-item-more[open] summary::before {
  content: "−";
}

.page-downloads .dl-item-more summary:hover,
.page-downloads .dl-item-more summary:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.page-downloads .dl-item-more p {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ============ 获取方式 ============ */
.page-downloads .dl-get {
  border-radius: var(--radius-lg);
}

.page-downloads .dl-get-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-downloads .dl-get-head .eyebrow {
  color: var(--color-primary);
}

.page-downloads .dl-get-head .section-title {
  margin: var(--space-2) 0 var(--space-3);
}

.page-downloads .dl-get-lede {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-downloads .dl-get-lede:last-child {
  margin-bottom: 0;
}

.page-downloads .dl-get-lede a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-downloads .dl-get-lede a:hover {
  color: var(--color-accent);
}

.page-downloads .dl-get-side {
  padding: var(--space-3);
  background: color-mix(in srgb, var(--color-surface) 72%, transparent);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
}

.page-downloads .dl-contact {
  margin: 0 0 var(--space-4);
  display: grid;
  gap: var(--space-2);
}

.page-downloads .dl-contact-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: baseline;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-downloads .dl-contact-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-downloads .dl-contact-row dt {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-downloads .dl-contact-row dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
  word-break: break-word;
}

.page-downloads .dl-get-btn {
  width: 100%;
  justify-content: center;
  text-align: center;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-downloads .dl-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-downloads .dl-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-downloads .dl-get-btn {
    width: auto;
  }
}

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

  .page-downloads .dl-hero-grid {
    grid-template-columns: var(--dl-rail-w) minmax(0, 1.05fr) minmax(0, 0.9fr);
    gap: var(--gutter);
    align-items: start;
    margin-top: var(--space-8);
  }

  .page-downloads .dl-rail {
    flex-direction: column;
    overflow-x: visible;
  }

  .page-downloads .dl-rail a {
    flex-direction: column;
    width: var(--dl-rail-w);
    height: var(--dl-rail-w);
    justify-content: center;
    gap: 2px;
    padding: 0;
  }

  .page-downloads .dl-rail-txt {
    font-size: var(--text-xs);
    letter-spacing: 0.02em;
  }

  .page-downloads .dl-group-head--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
    gap: var(--gutter);
  }

  .page-downloads .dl-get-inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
    align-items: start;
    gap: var(--gutter);
  }
}

@media (min-width: 1000px) {
  .page-downloads .dl-items {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-downloads .dl-group-wide .dl-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .page-downloads .dl-group-wide .dl-item {
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .page-downloads .dl-group-wide .dl-item-title {
    font-size: var(--text-xl);
  }

  .page-downloads .dl-group-wide .dl-item-desc {
    font-size: var(--text-base);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-downloads .dl-item,
  .page-downloads .dl-rail a,
  .page-downloads .dl-item-more summary {
    transition: none;
  }

  .page-downloads .dl-item:hover {
    transform: none;
  }
}