.qdzrt-brand {
  max-width: min(300px, 32vw);
}

.qdzrt-brand--image {
  padding-right: 8px;
}

.qdzrt-brand__viewport {
  position: relative;
  display: block;
  width: clamp(248px, 18vw, 264px);
  height: 42px;
  overflow: hidden;
}

.qdzrt-brand__image {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
  transform: translate(-50%, -50%);
}

.qdzrt-header__topbar .qdzrt-brand__image {
  top: calc(50% + 2px);
}

.qdzrt-footer__brand-viewport {
  position: relative;
  display: block;
  width: 320px;
  max-width: 100%;
  height: 76px;
  overflow: hidden;
}

.qdzrt-footer__brand-image {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  width: 100%;
  height: auto;
  max-width: none;
  max-height: none;
  transform: translate(-50%, -50%);
}

@media (max-width: 768px) {
  .qdzrt-brand--mobile {
    max-width: none;
    padding-right: 0;
    border-radius: 10px;
    background: #111820;
    box-shadow: 0 6px 18px rgba(15, 31, 39, 0.16);
  }

  .qdzrt-brand--mobile .qdzrt-brand__viewport {
    width: clamp(172px, 56vw, 210px);
    height: 42px;
  }

  .qdzrt-brand--mobile .qdzrt-brand__image {
    top: 50%;
    width: 100%;
    height: auto;
  }
}

@media (max-width: 640px) {
  .qdzrt-footer__brand-viewport {
    width: 260px;
    max-width: 100%;
    height: 60px;
  }
}

@media (max-width: 420px) {
  .qdzrt-brand--mobile {
    max-width: none;
  }

  .qdzrt-brand--mobile .qdzrt-brand__viewport {
    width: clamp(162px, 54vw, 190px);
  }
}