/* 文章内容中的图片悬浮效果 */
.post-content img {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-radius: 4px;
}

.post-content img:hover {
  transform: scale(1.03);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

/* 图片放大查看器样式 */
.image-viewer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.image-viewer.active {
  opacity: 1;
  visibility: visible;
}

.image-viewer-container {
  position: relative;
  max-width: 90%;
  max-height: 90%;
}

.view-image {
  max-width: 100%;
  max-height: 90vh;
  display: block;
  margin: 0 auto;
  border: 2px solid #fff;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.close-viewer {
  position: absolute;
  top: -40px;
  right: 0;
  font-size: 30px;
  color: #fff;
  cursor: pointer;
  transition: color 0.3s ease;
}

.close-viewer:hover {
  color: #ff6b6b;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .post-content img:hover {
    transform: scale(1.01);
  }

  .view-image {
    max-height: 80vh;
  }

  .close-viewer {
    top: -30px;
    font-size: 24px;
  }

  /* 在更窄屏幕上进一步调整按钮位置 */
  .mobile-toc-toggle {
    bottom: 15px;
    right: 15px;
    width: 45px;
    height: 45px;
  }

  .back-to-top {
    right: 80px !important;
    bottom: 20px !important;
    width: 50px !important;
    height: 50px !important;
  }
}

/* 在极窄屏幕上垂直排列按钮 */
@media (max-width: 480px) {
  .mobile-toc-toggle {
    bottom: 80px !important;
    right: 20px !important;
  }

  .back-to-top {
    right: 80px !important;
    bottom: 20px !important;
  }
}