body {
  background: #143035;
}
.gallery-container {
  padding-top: 3rem;
  padding-bottom: 3rem;
}
.gallery-vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}
.title {
  color: #f8f8f8;
}
.gallery-item {
  width: 100%;
  background: #f0f3f5;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
  padding: 2rem 1rem 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.gallery-item img {
  width: 100%;
  max-width: 800px;
  max-height: 600px;
  border-radius: 12px;
  object-fit: contain;
  background: #f8f8f8;
  margin-bottom: 1rem;
  box-shadow: 0 1px 6px rgba(0,0,0,0.07);
}
.gallery-caption {
  font-size: 1.3rem;
  color: #363636;
  text-align: center;
  margin-top: 0.5rem;
  word-break: normal;
}
.back-btn {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  z-index: 1000;
  background: #f0f3f5;
  border: none;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: box-shadow 0.2s;
}
.back-btn:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
}
.back-btn i {
  font-size: 1.5rem;
  color: #363636;
}
@media (max-width: 900px) {
  .gallery-item img {
    max-width: 98vw;
    max-height: 60vw;
  }
  .gallery-vertical {
    max-width: 100vw;
  }
}
@media (max-width: 600px) {
  .gallery-item {
    padding: 1rem 0.2rem 1rem 0.2rem;
  }
  .back-btn {
    top: 0.5rem;
    left: 0.5rem;
    width: 40px;
    height: 40px;
  }
}