.side-banners {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.side-banners__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  padding: 16px 8px;
  text-decoration: none;
  writing-mode: vertical-rl;
  transition: opacity 0.2s;
}
.side-banners__item:hover { opacity: 0.85; }
.side-banners__item--red { background: #d32f2f; }
.side-banners__item--blue { background: #1a3a6a; }
.side-banners__icon {
  font-size: 1.4em;
  margin-bottom: 8px;
  writing-mode: horizontal-tb;
}
.side-banners__sub {
  font-size: 0.65em;
  color: rgba(255,255,255,0.85);
  margin: 0 0 6px;
  line-height: 1.4;
}
.side-banners__main {
  font-size: 0.95em;
  font-weight: bold;
  color: #fff;
  margin: 0;
  line-height: 1.4;
}
@media screen and (max-width: 1300px) {
  .side-banners { display: none; }
}