.page-app-download {
  display: block;
  overflow-x: clip;
  background-color: var(--color-surface);
  color: var(--color-ink);
}

/* ---------- 首屏 ---------- */
.page-app-download .hero {
  position: relative;
  border-bottom: var(--border-thin) solid var(--color-line);
  background:
    radial-gradient(120% 84% at 88% -12%, color-mix(in srgb, var(--color-primary) 30%, transparent) 0%, transparent 58%),
    linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-surface) 78%);
}

.page-app-download .hero__grid {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-8);
}

.page-app-download .breadcrumb {
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.page-app-download .hero__eyebrow {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-accent);
}

.page-app-download .hero__title {
  margin: var(--space-2) 0 0;
  max-width: 11em;
  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);
}

.page-app-download .hero__lede {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
  margin: var(--space-6) 0 0;
  padding: var(--space-4) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
  list-style: none;
}

.page-app-download .hero__stats .stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1 1 132px;
  min-width: 132px;
}

.page-app-download .hero__stats .stat__value {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.page-app-download .hero__stats .stat__unit {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-app-download .hero__stats .stat__label {
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-muted);
}

.page-app-download .hero__visual {
  position: relative;
  margin: 0;
  padding-top: var(--space-3);
  overflow: hidden;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 40%, transparent);
  border-radius: var(--radius-lg);
  background: var(--color-surface-deep);
  box-shadow: var(--shadow-2);
}

.page-app-download .hero__visual::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  background:
    radial-gradient(circle at 5% 50%, var(--color-accent) 0 3px, transparent 3.5px),
    radial-gradient(circle at 11% 50%, var(--color-primary) 0 3px, transparent 3.5px),
    radial-gradient(circle at 17% 50%, var(--color-line) 0 3px, transparent 3.5px),
    var(--color-surface-deep);
}

.page-app-download .hero__visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 快速定位条 ---------- */
.page-app-download .client-rail {
  border-bottom: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-alt);
}

.page-app-download .client-rail__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-2);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-app-download .client-rail__inner::-webkit-scrollbar {
  display: none;
}

.page-app-download .client-rail__label {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}

.page-app-download .client-rail__list {
  display: flex;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-app-download .client-rail__list a {
  display: block;
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-app-download .client-rail__list a:hover,
.page-app-download .client-rail__list a:focus-visible {
  color: var(--color-ink);
  border-color: var(--color-line);
  background: var(--color-surface-deep);
}

.page-app-download .client-rail__list a[aria-current="true"] {
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* ---------- 区块 ---------- */
.page-app-download .band {
  padding-block: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .section-head {
  max-width: 64ch;
  margin-bottom: var(--space-6);
}

/* ---------- 三种打开方式 ---------- */
.page-app-download .access__grid {
  display: grid;
  gap: var(--space-6);
}

.page-app-download .access__list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .access__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx name"
    "idx text";
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  padding-block: var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .access__idx {
  grid-area: idx;
  padding-top: var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-app-download .access__name {
  grid-area: name;
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .access__text {
  grid-area: text;
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .access__visual {
  margin: 0;
  justify-self: center;
  width: min(100%, 22rem);
  overflow: hidden;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-app-download .access__visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 能力清单 ---------- */
.page-app-download .cap-groups {
  display: grid;
  gap: var(--space-8);
}

.page-app-download .cap-group__title {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-app-download .cap-group__title::before {
  content: "";
  display: inline-block;
  width: var(--space-4);
  height: var(--border-thin);
  margin-right: var(--space-2);
  vertical-align: middle;
  background: var(--color-primary);
}

.page-app-download .cap-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .cap__details {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .cap__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "num name toggle"
    "meta meta meta";
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding-block: var(--space-3);
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s ease;
}

.page-app-download .cap__sum::-webkit-details-marker {
  display: none;
}

.page-app-download .cap__sum:hover {
  background: color-mix(in srgb, var(--color-surface-alt) 80%, transparent);
}

.page-app-download .cap__sum:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

.page-app-download .cap__num {
  grid-area: num;
  min-width: 2ch;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-app-download .cap__name {
  grid-area: name;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .cap__meta {
  grid-area: meta;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-app-download .cap__toggle {
  grid-area: toggle;
  position: relative;
  flex: none;
  width: var(--space-3);
  height: var(--space-3);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 45%, transparent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
}

.page-app-download .cap__toggle::before,
.page-app-download .cap__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--space-2);
  height: var(--border-thin);
  background: currentColor;
  transform: translate(-50%, -50%);
}

.page-app-download .cap__toggle::after {
  width: var(--border-thin);
  height: var(--space-2);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-app-download .cap__details[open] .cap__toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-app-download .cap__details[open] .cap__sum {
  background: var(--color-primary-soft);
}

.page-app-download .cap__body {
  padding-bottom: var(--space-4);
}

.page-app-download .cap__desc {
  margin: 0 0 var(--space-2);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .cap__facts {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-app-download .cap__facts li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.65;
}

.page-app-download .cap__key {
  padding: 0 var(--space-1);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-app-download .cap__val {
  color: var(--color-ink-soft);
}

/* ---------- 版本对照 ---------- */
.page-app-download .versions__visual {
  margin: 0 0 var(--space-6);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
}

.page-app-download .versions__visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-app-download .vtable-wrap {
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
}

.page-app-download .vtable {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-app-download .vtable__caption {
  caption-side: top;
  padding: var(--space-3) var(--space-3) var(--space-2);
  text-align: left;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-app-download .vtable th,
.page-app-download .vtable td {
  padding: var(--space-3);
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .vtable thead th {
  border-bottom-color: color-mix(in srgb, var(--color-accent) 42%, var(--color-line));
}

.page-app-download .vtable tbody tr:last-child th,
.page-app-download .vtable tbody tr:last-child td {
  border-bottom: 0;
}

.page-app-download .vtable tbody th {
  font-size: var(--text-xs);
  font-weight: var(--weight-body);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-app-download .vtable tbody td {
  color: var(--color-ink-soft);
}

.page-app-download .vtable tbody tr:hover td {
  background: color-mix(in srgb, var(--color-surface-deep) 65%, transparent);
  color: var(--color-ink);
}

.page-app-download .vtable tbody tr:hover th {
  color: var(--color-accent);
}

.page-app-download .vtable__name {
  display: block;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-app-download .vtable__hint {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

/* ---------- 使用前准备 ---------- */
.page-app-download .prepare__grid {
  display: grid;
  gap: var(--space-6);
}

.page-app-download .prepare__list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .prepare__item {
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .prepare__item h3 {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .prepare__item h3 .mono {
  margin-right: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-app-download .prepare__item p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .prepare__item a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-app-download .prepare__visual {
  margin: 0;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
}

.page-app-download .prepare__visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 不适用场景（亮底） ---------- */
.page-app-download .limits {
  padding-block: var(--space-6);
}

.page-app-download .limits .section-head {
  margin-bottom: var(--space-4);
}

.page-app-download .limits__head .section-head__num {
  color: var(--color-contrast-accent);
}

.page-app-download .limits__head .section-head__title {
  color: var(--color-contrast-ink);
}

.page-app-download .limits__head .section-head__sub {
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

.page-app-download .limits__list {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-app-download .limits__item {
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .limits__name {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .limits__name::before {
  content: "";
  display: inline-block;
  width: var(--space-2);
  height: var(--space-2);
  margin-right: var(--space-2);
  vertical-align: -1px;
  border-radius: var(--radius-sm);
  background: var(--color-contrast-accent);
}

.page-app-download .limits__text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

.page-app-download .limits__text a {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 出口 ---------- */
.page-app-download .outro {
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .outro__title {
  margin: 0 0 var(--space-4);
  max-width: 20em;
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .outro__grid {
  display: grid;
  gap: var(--space-4);
}

.page-app-download .outro__card {
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-app-download .outro__card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 50%, transparent);
  box-shadow: var(--shadow-1);
}

.page-app-download .outro__card h3 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .outro__card p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .outro__aside {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.page-app-download .outro__aside a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-app-download .cap__sum {
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    grid-template-areas: "num name meta toggle";
  }

  .page-app-download .limits__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .page-app-download .outro__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }
}

@media (min-width: 960px) {
  .page-app-download .hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: var(--space-8);
    padding-block: var(--section-y) var(--space-8);
  }

  .page-app-download .band {
    padding-block: var(--space-8);
  }

  .page-app-download .access__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-8);
  }

  .page-app-download .prepare__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: var(--space-8);
  }

  .page-app-download .prepare__visual {
    position: sticky;
    top: var(--space-8);
  }

  .page-app-download .limits {
    padding-block: var(--section-y);
  }

  .page-app-download .outro__title {
    font-size: var(--text-3xl);
  }
}