.download-hero {
  padding: 90px 0 94px;
  border-bottom: 1px solid var(--line);
  background: var(--cream);
}

.download-hero h1 {
  max-width: 720px;
}

.download-lead {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.downloads-section {
  padding: 118px 0 132px;
  background: var(--cream-light);
}

.section-heading {
  margin-bottom: 52px;
}

.section-heading h2,
.requirements h2 {
  margin: 0;
  font-size: clamp(34px, 4.4vw, 50px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.download-fallback {
  margin: 14px 0 0;
  text-align: center;
  font-size: 13.5px;
  color: var(--ink-soft, #5c5a52);
}

.download-fallback a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.platform-card {
  position: relative;
  display: flex;
  min-height: 440px;
  flex-direction: column;
  padding: 36px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--cream);
  box-shadow: 0 16px 38px rgba(34, 57, 47, 0.06);
  transition: border-color 180ms ease, transform 180ms ease;
}

.platform-card:hover {
  border-color: rgba(63, 107, 86, 0.48);
  transform: translateY(-2px);
}

/* 平台识别后的主推卡片（assets/js/downloads.js） */
.platform-card.is-recommended {
  border-color: rgba(63, 107, 86, 0.48);
}

.platform-badge {
  position: absolute;
  top: 30px;
  right: 30px;
  padding: 5px 11px;
  border-radius: 999px;
  color: var(--cream-light);
  background: var(--green);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

.platform-icon {
  width: 46px;
  height: 46px;
  color: var(--green);
}

.platform-name {
  margin: 27px 0 0;
  color: var(--green);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.platform-card h3 {
  max-width: 440px;
  margin: 12px 0 0;
  font-size: 30px;
  font-weight: 600;
  line-height: 1.35;
}

.platform-description {
  margin: 17px 0 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
}

.platform-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 28px 0 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--sans);
}

.platform-meta dt {
  color: var(--muted);
  font-size: 11px;
}

.platform-meta dd {
  margin: 7px 0 0;
  color: var(--charcoal);
  font-size: 13px;
  font-weight: 650;
}

.platform-download {
  display: inline-flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: auto;
  padding: 0 22px;
  border-radius: 8px;
  color: var(--cream-light);
  background: var(--forest);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 650;
  transition: background-color 160ms ease, transform 160ms ease;
}

.platform-download:hover {
  background: var(--green);
  transform: translateY(-1px);
}

/* 非当前平台的下载按钮：灰调弱化，但仍是普通可点链接 */
.platform-download.is-muted {
  color: var(--muted);
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.platform-download.is-muted:hover {
  color: var(--charcoal);
  background: rgba(74, 58, 74, 0.06);
  transform: none;
}

.release-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  margin-top: 34px;
  color: var(--green);
  font-family: var(--sans);
  font-size: 14px;
}

.release-actions a {
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(63, 107, 86, 0.35);
}

.requirements {
  padding: 112px 0 122px;
  background: #dce5da;
}

.requirements-intro {
  max-width: 660px;
  margin: 22px 0 0;
  color: rgba(74, 58, 74, 0.66);
  font-size: 17px;
  line-height: 1.8;
}

.requirement-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 48px;
}

.requirement-card {
  padding: 32px;
  border: 1px solid rgba(74, 58, 74, 0.15);
  border-radius: 16px;
  background: rgba(250, 248, 242, 0.5);
}

.requirement-card h3 {
  margin: 0 0 22px;
  font-size: 25px;
  font-weight: 600;
}

.requirement-list {
  display: grid;
  gap: 15px;
  margin: 0;
  font-family: var(--sans);
}

.requirement-list div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px;
}

.requirement-list dt {
  color: rgba(74, 58, 74, 0.55);
  font-size: 13px;
}

.requirement-list dd {
  margin: 0;
  color: var(--charcoal);
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 760px) {
  .download-hero {
    padding: 72px 0 86px;
  }

  .download-grid,
  .requirement-grid {
    grid-template-columns: 1fr;
  }

  .downloads-section,
  .requirements {
    padding: 86px 0 94px;
  }

  .section-heading {
    margin-bottom: 38px;
  }

  .platform-card {
    min-height: 420px;
    padding: 30px;
  }

  .platform-badge {
    top: 24px;
    right: 24px;
  }
}

@media (max-width: 410px) {
  .platform-meta {
    grid-template-columns: 1fr 1fr;
  }

  .requirement-list div {
    grid-template-columns: 1fr;
    gap: 5px;
  }
}