/* 图片分辨率 */
.board-photo {
  display: block;
  max-width: 100%;
  max-height: 360px;
  width: auto;
  height: auto;
  object-fit: contain;
  margin: 0 auto 20px auto;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  cursor: zoom-in;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.board-photo:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.board-photo-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap; /* 屏幕小的时候会自动换行 */
  margin-bottom: 20px;
}

.board-photo-container img {
  max-width: 100%;
  width: 320px;
  max-height: 360px;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: zoom-in;
}

/* 大图本体 */
.image-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 8px;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
  cursor: zoom-out;
}

/* 可选：加提示文字 */
.image-overlay::before {
  content: "点击关闭";
  color: #fff;
  font-size: 14px;
  position: absolute;
  bottom: 20px;
  opacity: 0.6;
}

/* 大图弹出层 */
.image-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background-color: rgba(0, 0, 0, 0.85);
  justify-content: center;
  align-items: center;
  z-index: 9999;
}