.page-app-download {
  --app-lamp-size: calc(var(--space-2) * 0.75);
  --app-shift: 0px;
}

.page-app-download .app-topbar {
  padding-top: var(--space-4);
}

/* ---------- 首屏 ---------- */
.page-app-download .app-hero {
  padding-block: var(--space-6) var(--section-y);
  background:
    radial-gradient(120% 90% at 10% -20%, color-mix(in srgb, var(--color-primary) 18%, transparent), transparent 62%),
    linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-surface) 78%);
}

.page-app-download .app-hero__title {
  margin: var(--space-3) 0 0;
  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 .app-hero__lead {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .app-hero__deck {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-app-download .app-line {
  position: relative;
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-contrast-ink) 20%, transparent);
  transform: translateY(var(--app-shift));
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.page-app-download .app-line:hover,
.page-app-download .app-line:focus-within {
  transform: translateY(calc(var(--app-shift) - var(--space-1) * 0.25));
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--color-contrast-ink) 28%, transparent),
    var(--shadow-2);
}

.page-app-download .app-line__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
}

.page-app-download .app-line__tag {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .app-line__name {
  margin: var(--space-2) 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .app-line__body {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}

.page-app-download .app-line__go {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
}

.page-app-download .app-line__go a {
  color: var(--color-contrast-accent);
  text-decoration: underline dotted;
  text-underline-offset: 4px;
}

.page-app-download .app-line__go a:hover {
  color: var(--color-contrast-ink);
}

/* 关键数字 */
.page-app-download .app-figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  order: -1;
  padding: var(--space-3);
  border: var(--border-thin) dashed var(--color-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) 76%, transparent);
}

.page-app-download .app-figure {
  margin: 0;
  text-align: center;
}

.page-app-download .app-figure__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-accent);
}

.page-app-download .app-figure__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

.page-app-download .app-hero__media {
  margin-top: var(--space-6);
  aspect-ratio: 21 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ---------- 图片容器统一 ---------- */
.page-app-download .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
}

.page-app-download .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-app-download .app-hero__media img {
  height: 100%;
}

.page-app-download .media-frame__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-app-download .media-frame__caption {
  position: absolute;
  inset: auto var(--space-3) var(--space-3);
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

/* ---------- 通用区块 ---------- */
.page-app-download .app-section {
  padding-block: var(--section-y);
}

.page-app-download .app-section--alt {
  background: var(--color-surface-alt);
}

.page-app-download .app-section--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-app-download .app-section--deep .eyebrow {
  background: color-mix(in srgb, var(--color-contrast-accent) 20%, transparent);
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

.page-app-download .app-section__head {
  max-width: var(--measure);
}

.page-app-download .app-section__head h2 {
  margin: var(--space-2) 0;
  font-family: var(--font-heading);
  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 .app-section--deep .app-section__head h2 {
  color: var(--color-contrast-ink);
}

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

.page-app-download .app-section--deep .app-section__lead {
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

/* 胶囊标签 */
.page-app-download .app-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-app-download .app-chips a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: calc(var(--space-1) * 0.75) var(--space-3);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 40%, transparent);
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-app-download .app-chips a::before {
  content: "";
  width: var(--space-1);
  height: var(--space-1);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.page-app-download .app-chips a:hover,
.page-app-download .app-chips a:focus-visible {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-app-download .app-chips a:hover::before,
.page-app-download .app-chips a:focus-visible::before {
  background: var(--color-accent);
}

/* ---------- 指示灯 ---------- */
.page-app-download .app-lamp {
  --app-lamp-color: var(--color-primary);
  flex: none;
  width: var(--app-lamp-size);
  height: var(--app-lamp-size);
  border-radius: var(--radius-pill);
  background: var(--app-lamp-color);
  box-shadow: 0 0 18px color-mix(in srgb, var(--app-lamp-color) 60%, transparent);
  animation: app-lamp-breathe 2.4s ease-in-out infinite;
}

.page-app-download .app-line .app-lamp,
.page-app-download .app-section--deep .app-lamp {
  --app-lamp-color: var(--color-contrast-accent);
}

@keyframes app-lamp-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ---------- 获取方式 三列面板 ---------- */
.page-app-download .app-panels {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-app-download .app-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-primary) 30%, transparent);
  transition: background 160ms ease, border-color 160ms ease;
}

.page-app-download .app-panel:hover,
.page-app-download .app-panel:focus-within {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.page-app-download .app-panel__head {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
}

.page-app-download .app-panel__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink-muted);
}

.page-app-download .app-panel h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-app-download .app-panel__go {
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-app-download .app-panel__go a {
  color: var(--color-primary);
  font-size: var(--text-sm);
  text-decoration: underline dotted;
  text-underline-offset: 4px;
}

.page-app-download .app-access__tail {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-app-download .app-access__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-app-download .app-access__tail a {
  color: var(--color-primary);
}

/* ---------- 版本差异 ---------- */
.page-app-download .app-versions__media {
  margin: var(--space-6) 0 0;
  aspect-ratio: 16 / 9;
}

.page-app-download .app-versions__media img {
  height: 100%;
}

.page-app-download .app-table-wrap {
  margin-top: var(--space-6);
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
}

.page-app-download .app-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
}

.page-app-download .app-table__caption {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-heading);
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.page-app-download .app-table th,
.page-app-download .app-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  vertical-align: top;
  border-bottom: var(--border-thin) dotted var(--color-contrast-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}

.page-app-download .app-table thead th {
  background: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .app-table tbody th[scope="row"] {
  color: var(--color-contrast-ink);
  font-weight: var(--weight-heading);
  white-space: nowrap;
}

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

.page-app-download .app-ver {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-accent);
}

.page-app-download .app-ver__name {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  color: var(--color-contrast-ink);
}

.page-app-download .app-versions__note {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-contrast-accent);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

/* ---------- 安装准备 ---------- */
.page-app-download .app-prep {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

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

.page-app-download .app-check {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: var(--border-thin) dashed var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: background 160ms ease, border-color 160ms ease;
}

.page-app-download .app-check .app-lamp {
  margin-top: calc(var(--space-1) * 0.75);
  opacity: 0.45;
  transition: opacity 160ms ease;
}

.page-app-download .app-check:hover,
.page-app-download .app-check:focus-within {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  border-style: solid;
}

.page-app-download .app-check:hover .app-lamp,
.page-app-download .app-check:focus-within .app-lamp {
  opacity: 1;
}

.page-app-download .app-check__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download .app-check__state {
  padding: calc(var(--space-1) * 0.25) var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-surface-deep);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink-soft);
}

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

.page-app-download .app-prep__media {
  margin: 0;
  aspect-ratio: 12 / 7;
}

.page-app-download .app-prep__media img {
  height: 100%;
}

/* ---------- 装好之后 ---------- */
.page-app-download .app-steps {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-app-download .app-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-4);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-primary) 22%, transparent);
}

.page-app-download .app-step__num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-primary);
}

.page-app-download .app-step h3 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-app-download .app-step a {
  color: var(--color-primary);
}

/* ---------- 行动面板 ---------- */
.page-app-download .app-cta {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding: var(--space-6);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-app-download .app-cta__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .app-cta__text {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-app-download .app-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin: 0;
}

.page-app-download .app-cta__link {
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-decoration: underline dotted;
  text-underline-offset: 4px;
}

.page-app-download .app-cta__link:hover {
  color: var(--color-contrast-accent);
}

/* ---------- 焦点与动效 ---------- */
.page-app-download a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: calc(var(--space-1) * 0.5);
}

@media (prefers-reduced-motion: reduce) {
  .page-app-download .app-lamp {
    animation: none;
  }
  .page-app-download .app-line,
  .page-app-download .app-check,
  .page-app-download .app-panel,
  .page-app-download .app-chips a {
    transition: none;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-app-download .app-panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-app-download .app-panels > *:nth-child(2) {
    margin-top: var(--space-4);
  }

  .page-app-download .app-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-app-download .app-step:nth-child(even) {
    transform: translateY(var(--space-4));
  }

  .page-app-download .app-access__tail {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-app-download .app-hero__deck {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-app-download .app-figures {
    order: 0;
  }

  .page-app-download .app-line--light {
    --app-shift: calc(var(--space-2) * -1);
  }

  .page-app-download .app-line--full {
    --app-shift: var(--space-2);
  }

  .page-app-download .app-section__head h2 {
    font-size: var(--text-3xl);
  }

  .page-app-download .app-prep {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-app-download .app-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-app-download .app-table {
    min-width: 100%;
  }
}