/* ============================================================
   客户端中心 / page-app-download
   ============================================================ */

.page-app-download {
  background: var(--color-surface);
  overflow-x: hidden;
}

/* ---------- 通用节区节奏 ---------- */
.page-app-download .pd-section {
  padding: var(--space-8) 0;
}

@media (min-width: 900px) {
  .page-app-download .pd-section {
    padding: var(--section-y) 0;
  }
}

.page-app-download .pd-tint {
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
}

/* ---------- 首屏 ---------- */
.page-app-download .hero-package {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 560px;
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

@media (min-width: 900px) {
  .page-app-download .hero-package {
    min-height: 74vh;
  }
}

.page-app-download .hero-package__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  z-index: 0;
}

.page-app-download .hero-package__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  z-index: 1;
}

.page-app-download .hero-package__inner {
  position: relative;
  z-index: 2;
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
  color: var(--color-contrast-ink);
}

.page-app-download .hero-package .crumbs,
.page-app-download .hero-package .crumbs a,
.page-app-download .hero-package .crumbs span {
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
}

.page-app-download .hero-package .crumbs a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-app-download .hero-package__eyebrow {
  margin-top: var(--space-4);
  color: var(--color-contrast-accent);
}

.page-app-download .hero-package__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-surface);
  max-width: 1024px;
}

.page-app-download .hero-package__lede {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-contrast-ink);
}

.page-app-download .hero-tiers {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-6);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-app-download .hero-tiers li {
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-contrast-accent);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  letter-spacing: 0.08em;
  color: var(--color-surface);
}

@media (min-width: 900px) {
  .page-app-download .hero-tiers li {
    font-size: var(--text-3xl);
  }
}

.page-app-download .hero-badge {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-6);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-contrast-surface) 74%, transparent);
  border: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .hero-badge__cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-app-download .hero-badge__value {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-app-download .hero-badge__label {
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
}

@media (min-width: 1024px) {
  .page-app-download .hero-package__inner {
    padding-top: 96px;
  }

  .page-app-download .hero-badge {
    position: absolute;
    top: var(--space-6);
    right: var(--space-4);
    margin-top: 0;
  }

  .page-app-download .hero-package__title {
    max-width: 74%;
  }

  .page-app-download .hero-package__lede {
    max-width: 56%;
  }
}

/* ---------- 对照区头部 ---------- */
.page-app-download .compare-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: end;
  margin-bottom: var(--space-6);
}

@media (min-width: 900px) {
  .page-app-download .compare-head {
    grid-template-columns: 7fr 4fr;
    gap: var(--gutter);
  }
}

.page-app-download .compare-head__text .title-xl {
  margin: var(--space-2) 0 0;
}

.page-app-download .compare-head__text .lede {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-app-download .compare-head__media {
  margin: 0;
}

.page-app-download .compare-head__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
  box-shadow: var(--shadow-1);
}

/* ---------- 筛选条 ---------- */
.page-app-download .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-app-download .filter-status {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 档位卡 ---------- */
.page-app-download .tier-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 720px) {
  .page-app-download .tier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-app-download .tier-grid {
    grid-template-columns: 1.06fr 1fr 0.94fr;
    gap: var(--space-4);
  }
}

.page-app-download .tier {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
  transition: box-shadow 160ms ease, transform 160ms ease;
}

.page-app-download .tier:nth-child(2) {
  background: var(--color-surface-deep);
}

.page-app-download .tier:nth-child(3) {
  background: var(--color-primary-soft);
}

.page-app-download .tier:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
}

.page-app-download .tier__num {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  letter-spacing: 0.12em;
}

.page-app-download .tier__name {
  margin: var(--space-1) 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  color: var(--color-ink);
}

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

.page-app-download .tier__label {
  margin: var(--space-3) 0 var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-app-download .tier__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-app-download .tier__list li {
  position: relative;
  padding-left: var(--space-3);
  margin-bottom: 6px;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-app-download .tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.page-app-download .tier__sync {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-app-download .tier__pick {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  color: var(--color-accent);
}

/* ---------- 准备清单 ---------- */
.page-app-download .prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 980px) {
  .page-app-download .prep-grid {
    grid-template-columns: 7.5fr 3.5fr;
    gap: var(--gutter);
    align-items: start;
  }
}

.page-app-download .prep-main .title-xl {
  margin: var(--space-2) 0 0;
}

.page-app-download .prep-main .lede {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-app-download .prep-list {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-app-download .prep-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-app-download .prep-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.page-app-download .prep-item__num {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  letter-spacing: 0.1em;
}

.page-app-download .prep-item__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  color: var(--color-ink);
}

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

.page-app-download .prep-item__done {
  margin: var(--space-2) 0 0;
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-accent);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-accent);
}

.page-app-download .prep-side {
  display: grid;
  gap: var(--space-3);
}

.page-app-download .prep-side__media {
  margin: 0;
}

.page-app-download .prep-side__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-app-download .prep-side__note {
  background: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-app-download .prep-side__note p {
  margin: 0;
}

/* ---------- 版本演进（深色锚点） ---------- */
.page-app-download .ver-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: var(--space-8) 0;
}

@media (min-width: 900px) {
  .page-app-download .ver-section {
    padding: var(--section-y) 0;
  }
}

.page-app-download .ver-section__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.page-app-download .ver-section__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  z-index: 1;
}

.page-app-download .ver-section__inner {
  position: relative;
  z-index: 2;
  color: var(--color-contrast-ink);
}

.page-app-download .ver-section__eyebrow {
  color: var(--color-contrast-accent);
}

.page-app-download .ver-section__title {
  margin: var(--space-2) 0 0;
  color: var(--color-surface);
}

.page-app-download .ver-section__lede {
  margin-top: var(--space-3);
  max-width: var(--measure);
  color: var(--color-contrast-ink);
}

.page-app-download .ver-scale {
  display: block;
  width: 100%;
  height: auto;
  margin: var(--space-6) 0 var(--space-4);
}

.page-app-download .ver-scale__axis,
.page-app-download .ver-scale__tick {
  stroke: var(--color-contrast-line);
  stroke-width: 2;
}

.page-app-download .ver-scale__tick--now {
  stroke: var(--color-contrast-accent);
  stroke-width: 3;
}

.page-app-download .ver-scale__node {
  fill: var(--color-contrast-accent);
}

.page-app-download .ver-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

@media (min-width: 720px) {
  .page-app-download .ver-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 1080px) {
  .page-app-download .ver-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-app-download .ver-item {
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-contrast-accent);
}

.page-app-download .ver-item__tag {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
}

.page-app-download .ver-item__title {
  margin: var(--space-1) 0 var(--space-1);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  color: var(--color-surface);
}

.page-app-download .ver-item__text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-contrast-ink);
}

/* ---------- 怎么选 ---------- */
.page-app-download .pick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (min-width: 760px) {
  .page-app-download .pick-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

.page-app-download .pick {
  position: relative;
  padding: var(--space-4) var(--space-3) var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-app-download .pick:nth-child(2) {
  background: var(--color-primary-soft);
}

.page-app-download .pick:nth-child(3) {
  background: var(--color-surface-deep);
}

.page-app-download .pick__num {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: var(--color-primary);
}

.page-app-download .pick__scene {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: 1.4;
  color: var(--color-ink);
}

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

/* ---------- 收口 ---------- */
.page-app-download .end-band {
  margin-top: var(--space-8);
  padding: var(--space-8) 0;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

@media (min-width: 900px) {
  .page-app-download .end-band {
    margin-top: var(--section-y);
    padding: var(--section-y) 0;
  }
}

.page-app-download .end-band__inner {
  color: var(--color-primary-ink);
}

.page-app-download .end-band__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  color: var(--color-primary-ink);
}

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

.page-app-download .end-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-app-download .end-band__actions .btn {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: transparent;
}

.page-app-download .end-band__actions .btn:hover {
  background: var(--color-highlight);
}

.page-app-download .end-band__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
}

.page-app-download .end-band__links a {
  color: var(--color-primary-ink);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 520px) {
  .page-app-download .prep-item {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }

  .page-app-download .hero-badge {
    gap: var(--space-4);
  }

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