/* ============================================
   WPS Office - Download Page Specific Styles
   ============================================ */

/* ---- Viscous Wave Background ---- */
.viscous-wave-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* ---- Download Hero ---- */
.download-hero {
  position: relative;
  z-index: 1;
  padding-top: 120px;
  padding-bottom: 80px;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.download-platform-icon {
  color: var(--text-primary);
  margin-bottom: 24px;
}

.download-main {
  text-align: center;
}

/* ---- Platform Detail Grid ---- */
.platform-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.platform-detail-card {
  border: 1px solid var(--border-divider);
  background: var(--surface-pure);
}

.platform-detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 24px 32px;
  border-bottom: 1px solid var(--border-divider);
  background: #f5f5f5;
}

.platform-detail-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.platform-detail-body {
  padding: 24px 32px 32px;
}

.platform-detail-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.platform-detail-info {
  margin-bottom: 20px;
}

.platform-detail-info p {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.8;
}

.platform-detail-info strong {
  color: var(--text-primary);
  font-weight: 500;
}

.install-steps-mini h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.install-steps-mini ol {
  padding-left: 20px;
}

.install-steps-mini li {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: 4px;
}

/* ---- Requirements Grid ---- */
.requirements-grid {
  gap: 24px;
  margin-top: 48px;
}

.requirement-card {
  border: 1px solid var(--border-dark);
  padding: 32px;
}

.requirement-card h3 {
  color: var(--text-light);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-dark);
}

.requirement-card ul {
  list-style: none;
}

.requirement-card li {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.9;
  margin-bottom: 8px;
}

.requirement-card li strong {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

/* ---- Changelog ---- */
.changelog-list {
  margin-top: 48px;
}

.timeline-item:first-child {
  border-top: 1px solid var(--border-divider);
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ---- Security Block ---- */
.security-block {
  background: var(--surface-pure);
  border: 1px solid var(--border-divider);
  padding: 60px;
  text-align: center;
}

.security-icon {
  color: var(--text-primary);
  margin-bottom: 16px;
}

.security-badges {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border-divider);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .platform-detail-grid {
    grid-template-columns: 1fr;
  }

  .security-block {
    padding: 40px 24px;
  }

  .security-badges {
    gap: 8px;
  }

  .security-badge {
    font-size: 11px;
    padding: 6px 12px;
  }

  .requirements-grid {
    grid-template-columns: 1fr;
  }
}