hexo-theme-halunhaku/source/css/cover-images.css

A modern, responsive Hexo theme with enhanced code blocks, perfect cover images, and Chinese text optimization. Production-ready with mobile-first design.

/* 封面图片专用样式 - 确保完整显示 */

/* 重置默认的封面样式，确保完整显示 */
.post-cover-container {
  background: linear-gradient(135deg, var(--secondary-color) 0%, rgba(var(--secondary-color), 0.8) 100%) !important;
  border: 1px solid var(--border-color) !important;
  position: relative !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-height: 300px !important;
  max-height: 500px !important;
  overflow: hidden !important;
}

/* 文章详情页封面图片 - 完整显示不裁剪 */
.post-cover-image {
  /* 确保图片完整显示，不被裁剪 */
  object-fit: contain !important;
  object-position: center !important;
  
  /* 添加内边距，避免图片贴边 */
  padding: 10px !important;
  
  /* 确保图片不会超出容器 */
  max-width: calc(100% - 20px) !important;
  max-height: calc(100% - 20px) !important;
  
  /* 居中显示 */
  margin: auto !important;
  display: block !important;
  
  /* 保持宽高比 */
  width: auto !important;
  height: auto !important;
}

/* 首页文章卡片封面容器 - 强制样式 */
.post-card-cover {
  background-color: var(--secondary-color) !important;
  border: 1px solid var(--border-color) !important;
  position: relative !important;
  overflow: hidden !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-height: 200px !important;
  aspect-ratio: 3/2 !important;
}

/* 首页文章卡片封面图片 - 完整显示不裁剪 */
.post-card-cover-image {
  object-fit: contain !important;
  object-position: center !important;
  transition: all 0.3s ease !important;
  padding: 8px !important;
  max-width: calc(100% - 16px) !important;
  max-height: calc(100% - 16px) !important;
  display: block !important;
  margin: auto !important;
  width: auto !important;
  height: auto !important;
}

/* 覆盖可能的Tailwind样式冲突 */
.aspect-\[3\/2\] .post-card-cover-image {
  object-fit: contain !important;
}

/* 确保背景图片方式被完全禁用 */
.post-card-cover[style*="background-image"] {
  background-image: none !important;
  background-size: auto !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
}

/* 悬停效果 */
.post-cover-image:hover {
  transform: scale(1.01) !important;
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.2) !important;
}

.group:hover .post-card-cover-image {
  transform: scale(1.02) !important;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .post-cover-container {
    min-height: 200px !important;
    max-height: 300px !important;
  }
  
  .post-cover-image {
    padding: 8px !important;
    max-width: calc(100% - 16px) !important;
    max-height: calc(100% - 16px) !important;
  }
  
  .post-card-cover {
    min-height: 150px !important;
    aspect-ratio: 3/2 !important;
  }
  
  .post-card-cover-image {
    padding: 6px !important;
    max-width: calc(100% - 12px) !important;
    max-height: calc(100% - 12px) !important;
  }
}

@media (max-width: 480px) {
  .post-cover-container {
    min-height: 180px !important;
    max-height: 250px !important;
  }
  
  .post-cover-image {
    padding: 6px !important;
    max-width: calc(100% - 12px) !important;
    max-height: calc(100% - 12px) !important;
  }
  
  .post-card-cover-image {
    padding: 4px !important;
    max-width: calc(100% - 8px) !important;
    max-height: calc(100% - 8px) !important;
  }
}

/* 加载状态优化 */
.post-cover-image[style*="opacity: 0"],
.post-card-cover-image[style*="opacity: 0"] {
  background: linear-gradient(90deg, 
    var(--secondary-color) 25%, 
    rgba(var(--secondary-color), 0.8) 50%, 
    var(--secondary-color) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* 图片加载失败时的样式 */
.post-cover-image:not([src]),
.post-cover-image[src=""],
.post-cover-image[src="#"],
.post-card-cover-image:not([src]),
.post-card-cover-image[src=""],
.post-card-cover-image[src="#"] {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  color: white;
  font-size: 2rem;
  opacity: 0.7;
  min-height: 100px;
}

.post-cover-image:not([src])::before,
.post-cover-image[src=""]::before,
.post-cover-image[src="#"]::before,
.post-card-cover-image:not([src])::before,
.post-card-cover-image[src=""]::before,
.post-card-cover-image[src="#"]::before {
  content: "🖼️";
  font-size: 3rem;
}

/* 深色模式优化 */
@media (prefers-color-scheme: dark) {
  .post-cover-container {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.1) 100%) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
  }
  
  .post-card-cover {
    background-color: rgba(0, 0, 0, 0.2) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
  }
}

/* 确保Tailwind的aspect-ratio正常工作 */
.aspect-\[3\/2\] {
  aspect-ratio: 3/2 !important;
}

/* 强制覆盖可能冲突的样式 */
.post-cover-container .post-cover-image {
  object-fit: contain !important;
}

.post-card-cover .post-card-cover-image {
  object-fit: contain !important;
}

/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
  .post-cover-image,
  .post-card-cover-image {
    transition: none !important;
  }
  
  .post-cover-image:hover,
  .post-card-cover-image:hover,
  .group:hover .post-card-cover-image {
    transform: none !important;
  }
}

/* 打印样式 */
@media print {
  .post-cover-container,
  .post-card-cover {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
    background: white !important;
  }
  
  .post-cover-image,
  .post-card-cover-image {
    box-shadow: none !important;
  }
}

/* 最高优先级规则 - 确保首页封面完整显示 */
article.group .post-card-cover {
  background-image: none !important;
  background-size: auto !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

article.group .post-card-cover img,
article.group .post-card-cover .post-card-cover-image {
  object-fit: contain !important;
  object-position: center !important;
  max-width: calc(100% - 16px) !important;
  max-height: calc(100% - 16px) !important;
  width: auto !important;
  height: auto !important;
  display: block !important;
  margin: auto !important;
}

/* 覆盖任何可能的背景图片样式 */
.group > div > div[style*="background-image"] {
  background-image: none !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

/* 确保aspect-ratio容器正确工作 */
.aspect-\[3\/2\] {
  aspect-ratio: 3/2 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}