/* ============ 文档索引页 ============ */
.page-downloads-docs {
  --doc-radius: var(--radius-lg);
  --doc-radius-sm: var(--radius-md);
  --doc-edge: var(--color-line);
}

/* ---------- 面包屑 ---------- */
.page-downloads-docs .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-block: var(--space-4) var(--space-2);
  font-size: var(--text-sm);
}

.page-downloads-docs .breadcrumbs__item {
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: color .22s ease;
}

.page-downloads-docs a.breadcrumbs__item:hover,
.page-downloads-docs a.breadcrumbs__item:focus-visible {
  color: var(--color-accent);
}

.page-downloads-docs .breadcrumbs__sep {
  color: var(--color-ink-muted);
}

/* ---------- 首屏 ---------- */
.page-downloads-docs .doc-hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-6) var(--space-8);
  background:
    radial-gradient(120% 88% at 90% 4%, color-mix(in srgb, var(--color-primary) 18%, transparent) 0%, transparent 62%),
    linear-gradient(158deg, var(--color-primary-soft) 0%, var(--color-surface) 62%);
}

.page-downloads-docs .doc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--border-thin);
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--color-primary) 42%, transparent), transparent);
}

.page-downloads-docs .doc-hero__inner {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

.page-downloads-docs .doc-hero__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-hero__lede {
  margin: var(--space-3) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-downloads-docs .doc-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-downloads-docs .doc-hero__fact {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 26%, var(--color-line));
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-surface) 84%, transparent);
}

.page-downloads-docs .doc-hero__fact-num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  letter-spacing: .04em;
}

.page-downloads-docs .doc-hero__fact-label {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-downloads-docs .doc-hero__panel {
  padding: var(--space-4);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 22%, var(--color-line));
  border-radius: var(--doc-radius);
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  box-shadow: var(--shadow-1);
}

.page-downloads-docs .doc-hero__diagram {
  display: block;
  width: 100%;
  max-width: 360px;
  height: auto;
  margin-inline: auto;
}

.page-downloads-docs .doc-hero__diagram .d-rail {
  fill: var(--color-primary);
}

.page-downloads-docs .doc-hero__diagram .d-bar {
  fill: color-mix(in srgb, var(--color-primary) 34%, var(--color-surface));
}

/* ---------- 定位说明 ---------- */
.page-downloads-docs .doc-scope {
  padding-block: var(--space-8) var(--space-6);
}

.page-downloads-docs .doc-scope__panel {
  padding: var(--space-4);
  border: var(--border-thin) solid var(--doc-edge);
  border-radius: var(--doc-radius);
  background: linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-surface) 100%);
}

.page-downloads-docs .doc-scope__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-scope__lede {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-downloads-docs .doc-scope__cols {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-downloads-docs .doc-scope__col-title {
  margin: 0;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: .08em;
  color: var(--color-ink-muted);
}

.page-downloads-docs .doc-scope__list {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-2) 0 0;
  padding: 0;
  list-style: none;
}

.page-downloads-docs .doc-scope__list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-downloads-docs .doc-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: var(--space-1);
  height: var(--space-1);
  border-radius: 2px;
  background: var(--color-primary);
  transform: rotate(45deg);
}

.page-downloads-docs .doc-scope__back {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--doc-edge);
  font-size: var(--text-base);
}

/* ---------- 文档分组 ---------- */
.page-downloads-docs .doc-group {
  padding-block: var(--space-8);
}

.page-downloads-docs .doc-group--index {
  background: var(--color-surface-alt);
}

.page-downloads-docs .doc-group__head {
  max-width: var(--measure);
}

.page-downloads-docs .doc-group__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-group__lede {
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-downloads-docs .doc-group__media {
  margin: var(--space-4) 0 0;
  overflow: hidden;
  border: var(--border-thin) solid var(--doc-edge);
  border-radius: var(--doc-radius);
  background: linear-gradient(140deg, var(--color-primary-soft) 0%, var(--color-surface-deep) 100%);
  box-shadow: var(--shadow-1);
}

.page-downloads-docs .doc-group__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-downloads-docs .doc-group__split {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

/* ---------- 文档条目 ---------- */
.page-downloads-docs .doc-list {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-downloads-docs .doc-group__split .doc-list {
  margin-top: 0;
}

.page-downloads-docs .doc-entry {
  scroll-margin-top: var(--space-8);
  border: var(--border-thin) solid var(--doc-edge);
  border-radius: var(--doc-radius-sm);
  background: var(--color-surface);
  transition: border-color .25s ease, box-shadow .25s ease;
}

.page-downloads-docs .doc-entry:hover {
  border-color: color-mix(in srgb, var(--color-primary) 42%, var(--doc-edge));
}

.page-downloads-docs .doc-entry[open] {
  border-color: color-mix(in srgb, var(--color-primary) 34%, var(--doc-edge));
  box-shadow: var(--shadow-1);
}

.page-downloads-docs .doc-entry:target {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-highlight) 72%, transparent);
}

.page-downloads-docs .doc-entry__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  cursor: pointer;
  list-style: none;
}

.page-downloads-docs .doc-entry__summary::-webkit-details-marker {
  display: none;
}

.page-downloads-docs .doc-entry__summary::marker {
  content: "";
}

.page-downloads-docs .doc-entry__summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
  border-radius: var(--doc-radius-sm);
}

.page-downloads-docs .doc-entry__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: .1em;
  color: var(--color-primary);
  transition: color .25s ease;
}

.page-downloads-docs .doc-entry:hover .doc-entry__num,
.page-downloads-docs .doc-entry[open] .doc-entry__num {
  color: var(--color-accent);
}

.page-downloads-docs .doc-entry__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-entry__cue {
  position: relative;
  width: var(--space-3);
  height: var(--space-3);
  flex: none;
}

.page-downloads-docs .doc-entry__cue::before,
.page-downloads-docs .doc-entry__cue::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(50% - (var(--border-thin) / 2));
  height: var(--border-thin);
  background: var(--color-ink-muted);
  transition: transform .25s ease, background-color .25s ease;
}

.page-downloads-docs .doc-entry__cue::after {
  transform: rotate(90deg);
}

.page-downloads-docs .doc-entry[open] .doc-entry__cue::after {
  transform: rotate(0deg);
}

.page-downloads-docs .doc-entry[open] .doc-entry__cue::before,
.page-downloads-docs .doc-entry[open] .doc-entry__cue::after {
  background: var(--color-accent);
}

.page-downloads-docs .doc-entry__panel {
  padding: var(--space-3);
  border-top: var(--border-thin) solid var(--doc-edge);
}

.page-downloads-docs .doc-entry__fields {
  display: grid;
  gap: var(--space-3);
  margin: 0;
}

.page-downloads-docs .doc-entry__field {
  display: grid;
  gap: var(--space-1);
}

.page-downloads-docs .doc-entry__field dt {
  font-size: var(--text-xs);
  font-weight: var(--weight-heading);
  letter-spacing: .1em;
  color: var(--color-ink-muted);
}

.page-downloads-docs .doc-entry__field dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 反色转折块 ---------- */
.page-downloads-docs .doc-turn {
  padding-block: var(--space-6);
}

.page-downloads-docs .doc-turn__panel {
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-6);
  border-radius: var(--doc-radius);
  background:
    linear-gradient(135deg,
      var(--color-contrast-surface) 0%,
      color-mix(in srgb, var(--color-accent) 34%, var(--color-contrast-surface)) 100%);
  box-shadow: var(--shadow-2);
}

.page-downloads-docs .doc-turn__text {
  position: relative;
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-downloads-docs .doc-turn__text::before {
  content: "";
  position: absolute;
  left: calc(var(--space-3) * -1);
  top: .3em;
  bottom: .3em;
  width: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--color-contrast-accent), transparent);
}

/* ---------- 阅读顺序 ---------- */
.page-downloads-docs .doc-order {
  padding-block: var(--space-8);
}

.page-downloads-docs .doc-order__inner {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.page-downloads-docs .doc-order__title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-order__lede {
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

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

.page-downloads-docs .doc-order__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--doc-edge);
  border-radius: var(--doc-radius-sm);
  background: var(--color-surface);
  transition: border-color .25s ease, transform .25s ease;
}

.page-downloads-docs .doc-order__step:hover {
  border-color: color-mix(in srgb, var(--color-primary) 46%, var(--doc-edge));
  transform: translateY(-2px);
}

.page-downloads-docs .doc-order__step-num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: .1em;
  color: var(--color-primary);
}

.page-downloads-docs .doc-order__step-body {
  display: grid;
  gap: var(--space-1);
}

.page-downloads-docs .doc-order__step-link {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 34%, transparent);
  padding-bottom: 2px;
  width: fit-content;
  transition: border-color .22s ease;
}

.page-downloads-docs .doc-order__step-link:hover,
.page-downloads-docs .doc-order__step-link:focus-visible {
  border-bottom-color: var(--color-accent);
}

.page-downloads-docs .doc-order__step-body p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-downloads-docs .doc-order__media {
  margin: 0;
  overflow: hidden;
  border: var(--border-thin) solid var(--doc-edge);
  border-radius: var(--doc-radius);
  background: linear-gradient(200deg, var(--color-surface-deep) 0%, var(--color-primary-soft) 100%);
  box-shadow: var(--shadow-1);
}

.page-downloads-docs .doc-order__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 获取方式 ---------- */
.page-downloads-docs .doc-access {
  padding-block: 0 var(--space-8);
}

.page-downloads-docs .doc-access__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-access__frame {
  margin: 0;
  padding: var(--space-4);
  border: var(--border-thin) solid var(--doc-edge);
  border-radius: var(--doc-radius);
  background: var(--color-surface-deep);
}

.page-downloads-docs .doc-access__row {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) solid var(--doc-edge);
}

.page-downloads-docs .doc-access__row:first-child {
  padding-top: 0;
}

.page-downloads-docs .doc-access__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-downloads-docs .doc-access__row dt {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: .04em;
  color: var(--color-primary);
}

.page-downloads-docs .doc-access__row dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 出口入口 ---------- */
.page-downloads-docs .doc-return {
  padding-block: 0 var(--section-y-lg);
}

.page-downloads-docs .doc-return__title {
  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-ink);
}

.page-downloads-docs .doc-return__grid {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-downloads-docs .doc-return__card {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--doc-edge);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--doc-radius-sm);
  background: var(--color-surface);
  text-decoration: none;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.page-downloads-docs .doc-return__card:hover,
.page-downloads-docs .doc-return__card:focus-visible {
  border-color: var(--color-accent);
  border-left-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-1);
}

.page-downloads-docs .doc-return__label {
  font-size: var(--text-xs);
  letter-spacing: .12em;
  color: var(--color-ink-muted);
}

.page-downloads-docs .doc-return__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-downloads-docs .doc-return__note {
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

/* ---------- 动效 ---------- */
.page-downloads-docs [data-reveal] {
  transition: opacity .5s ease, transform .5s ease;
}

.page-downloads-docs [data-reveal][data-revealed="true"] {
  animation: docRise .6s cubic-bezier(.22, .68, .32, 1) both;
  animation-delay: var(--reveal-delay, 0ms);
}

@keyframes docRise {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-downloads-docs [data-reveal][data-revealed="true"] {
    animation: none;
  }

  .page-downloads-docs .doc-entry,
  .page-downloads-docs .doc-order__step,
  .page-downloads-docs .doc-return__card {
    transition: none;
  }

  .page-downloads-docs .doc-order__step:hover,
  .page-downloads-docs .doc-return__card:hover {
    transform: none;
  }
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-downloads-docs .doc-scope__panel,
  .page-downloads-docs .doc-turn__panel,
  .page-downloads-docs .doc-access__frame {
    padding: var(--space-6);
  }

  .page-downloads-docs .doc-scope__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .page-downloads-docs .doc-entry__fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3) var(--space-4);
  }

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

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

  .page-downloads-docs .doc-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: var(--space-8);
  }

  .page-downloads-docs .doc-group__split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: var(--space-6);
  }

  .page-downloads-docs .doc-group__split .doc-group__media--side {
    margin-top: 0;
    position: sticky;
    top: var(--space-6);
  }

  .page-downloads-docs .doc-order__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-8);
  }

  .page-downloads-docs .doc-access__row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-downloads-docs .doc-access__row dt {
    padding-top: 2px;
  }

  .page-downloads-docs .doc-return__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-downloads-docs .doc-group__media {
    margin-top: var(--space-6);
  }
}
<<<END>>>

.page-downloads-docs {
  --reveal-delay: inherit;
}