/* PWA 安装引导条样式 */
#pwa-install-banner.pwa-banner {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom));
  z-index: 99999;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 12px 36px rgba(20, 20, 30, 0.28);
  padding: 12px 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Segoe UI', Roboto, sans-serif;
  animation: pwa-slide-up 0.28s ease-out;
}
@keyframes pwa-slide-up {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
#pwa-install-banner .pwa-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
#pwa-install-banner .pwa-logo {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  flex: none;
  box-shadow: 0 4px 12px rgba(255, 64, 152, 0.25);
}
#pwa-install-banner .pwa-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
#pwa-install-banner .pwa-text strong {
  font-size: 15px;
  color: #1a1320;
}
#pwa-install-banner .pwa-text span {
  font-size: 12.5px;
  line-height: 1.5;
  color: #6b6470;
}
#pwa-install-banner .pwa-share {
  vertical-align: -4px;
  margin: 0 2px;
}
#pwa-install-banner .pwa-install-btn {
  flex: none;
  border: none;
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(78deg, #ff4098 28%, #ff9d4d 100%);
  box-shadow: 0 6px 16px rgba(255, 64, 152, 0.3);
}
#pwa-install-banner .pwa-install-btn:active { transform: translateY(1px); }
#pwa-install-banner .pwa-close {
  flex: none;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: #f1f1f4;
  color: #8b8690;
  font-size: 20px;
  line-height: 26px;
}
#pwa-install-banner .pwa-arrow {
  text-align: center;
  color: #007aff;
  font-size: 20px;
  margin-top: 4px;
  animation: pwa-bounce 1.2s infinite;
}
@keyframes pwa-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}
/* iOS 引导把箭头指向底部分享栏 */
#pwa-install-banner.pwa-ios { bottom: calc(8px + env(safe-area-inset-bottom)); }