/* PWA install guide — gold theme */
#pwa-install-banner {
  display: none;
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 9000;
  background: linear-gradient(145deg, #1a1a25 0%, #13131b 100%);
  border: 1px solid rgba(201, 168, 76, 0.35);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
  padding: 16px 16px 14px;
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: #dddacc;
  animation: pwa-slide-up 0.35s ease-out;
}
#pwa-install-banner.visible { display: block; }
@keyframes pwa-slide-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.pwa-banner-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.pwa-banner-title {
  font-size: 15px;
  color: #e8c97a;
  font-weight: 500;
  line-height: 1.4;
}
.pwa-banner-sub {
  font-size: 12px;
  color: #a8a59a;
  margin-top: 4px;
  line-height: 1.5;
}
.pwa-banner-close {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(201, 168, 76, 0.25);
  border-radius: 8px;
  background: transparent;
  color: #585870;
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
}
.pwa-banner-close:hover { color: #e8c97a; border-color: rgba(201, 168, 76, 0.5); }
.pwa-steps { display: flex; flex-direction: column; gap: 10px; }
.pwa-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.55;
  color: #dddacc;
}
.pwa-step-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(201, 168, 76, 0.15);
  border: 1px solid rgba(201, 168, 76, 0.35);
  color: #e8c97a;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pwa-step-icon { font-size: 15px; margin-right: 2px; }
.pwa-step strong { color: #e8c97a; font-weight: 500; }
.pwa-banner-foot {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.pwa-banner-link {
  font-size: 12px;
  color: #c9a84c;
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 168, 76, 0.3);
}
.pwa-banner-link:hover { color: #e8c97a; }
.pwa-banner-dismiss {
  font-size: 12px;
  color: #585870;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 4px 0;
}
.pwa-banner-dismiss:hover { color: #a8a59a; }