/* ====================================
   BLOG COMPONENTS
==================================== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 400px));
  gap: 2rem;
  margin-top: 2rem;
  justify-content: center; /* Center grid items horizontally */
}

.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-radius: var(--border-radius-medium);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  height: 100%;
}

.blog-image {
  position: relative;
  width: 100%;
  height: 0;
  padding-top: 56.25%; /* 16:9 */
  overflow: hidden;
  background-color: var(--color-bg);
  border-radius: var(--border-radius-medium) var(--border-radius-medium) 0 0;
}

.blog-image.no-image {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--color-bg); /* Assuming background color provides contrast */
  font-weight: bold;
  font-size: 1.2rem;
  height: auto; /* Override height: 0 */
  min-height: 150px; /* Ensure some minimum height */
  padding: 1rem; 
}

.blog-image.no-image span {
    /* Optional: Add styles for the category text inside */
}

.blog-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.blog-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-content h3 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.blog-content p {
  font-size: 1rem;
  margin-bottom: 1rem;
  text-align: left;
  line-height: 1.6;
  color: var(--color-muted);
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.blog-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-radius: var(--border-radius-small);
  font-size: 0.85rem;
  font-weight: 500;
}

.read-more {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  transition: all 0.3s ease;
}

.read-more::after {
  content: '→';
  margin-left: 0.25rem;
}

/* Blog Filters Container */
.blog-filters {
  display: flex;
  flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
  justify-content: center; /* Center buttons horizontally */
  gap: 0.75rem; /* Space between buttons */
  margin-bottom: 2rem; /* Space below the filters */
  padding: 0.5rem 0;
}

/* Filter Button Styles */
.filter-button {
  /* Inherit base button styles or define specific ones */
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-muted);
  background-color: transparent;
  color: var(--color-muted);
  border-radius: var(--border-radius-large); /* Match other buttons if applicable */
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none; /* Ensure no underline */
}

/* ADDED: Explicitly remove underline on hover */
.filter-button:hover {
  text-decoration: none; /* REMOVED !important */
}

.filter-button.active {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
  font-weight: 500;
}

/* Blog post specific container (loaded dynamically) */
.blog-article-container {
   /* Styles specific to the loaded article page if needed */
   /* Example: max-width, margin, etc. */
   max-width: 800px; /* Example */
   margin: 0 auto;
}

.blog-article-container header {
    /* Styles for the header within a single blog post */
    display: block; /* ADDED: Ensure block layout */
    margin-bottom: 2rem;
}

.blog-article-container .post-categories {
    display: flex; /* Ensure it's flex */
    justify-content: center; /* Center tags inside */
    gap: 0.5rem;
    margin-top: 1.5rem; /* ADJUSTED: Increased space below title */
    margin-left: auto;
    margin-right: auto;
    width: fit-content; /* Fit width to content */
    margin-bottom: 1.5rem; /* Re-apply bottom margin */
}

.blog-article-container .post-category {
    /* Reuse existing .blog-category styles or define specifics */
    display: inline-block;
    padding: 0.15rem 0.5rem;
    background-color: #666666; /* ADDED: Lighter background color */
    color: var(--color-bg);
    border-radius: var(--border-radius-small);
    font-size: 10px;
    font-weight: 500;
}

/* ADDED: Style for the text inside the category tag */
.blog-article-container .post-category span {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.blog-article-container h1 {
    /* Styles for the main title of the blog post */
    font-size: 2.8rem;
    margin-bottom: 0;
    text-align: center;
}

.blog-article-container .post-meta {
    /* Styles for date/time */
    color: var(--color-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem; /* ADJUSTED: Reduced space below meta */
    text-align: center;
}

.blog-article-container .blog-post-image {
    /* Styles for the main image of the post */
    max-width: 720px; /* ADJUSTED: Limit image width to 720px */
    margin-left: auto; /* ADDED: Center image block */
    margin-right: auto; /* ADDED: Center image block */
    margin-bottom: 2rem;
    border-radius: var(--border-radius-medium);
    overflow: hidden;
}

.blog-article-container .blog-post-image img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-article-container .post-content {
    /* Styles for the main content area */
    max-width: 640px; /* ADJUSTED: Limit content width to 640px */
    margin-left: auto; /* ADDED: Center content block */
    margin-right: auto; /* ADDED: Center content block */
    font-size: 1.1rem; /* Example */
    line-height: 1.7;
    text-align: left; /* Adjust as needed */
}

.blog-article-container .post-content h2 {
    font-size: 2rem; /* Example */
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.blog-article-container .post-content h3 {
    font-size: 1.6rem; /* Example */
    margin-top: 2rem;
    margin-bottom: 0.8rem;
}

.blog-article-container .post-content p {
    text-align: left; /* Override default centered p */
    margin-bottom: 1.5rem;
    font-size: inherit;
    line-height: inherit;
}

.blog-article-container .post-content .conclusion {
    font-style: italic;
    text-align: center;
    margin-top: 3rem;
}

.blog-article-container footer {
    /* Styles for the footer within the blog post (e.g., back button) */
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(var(--color-text-rgb, 0, 0, 0), 0.1); /* Subtle border */
    text-align: center;
}

/* Error and No Posts Messages */
.error-message,
.no-posts-message {
  text-align: center;
  width: 100%;
  padding: 2rem 1rem;
  margin: 2rem auto;
  /* background-color: rgba(var(--color-text-rgb, 0, 0, 0), 0.03); Optionally add subtle background */
  /* border: 1px solid rgba(var(--color-text-rgb, 0, 0, 0), 0.1); Optionally add border */
  border-radius: var(--border-radius-medium);
}

.error-message p,
.no-posts-message p {
    margin-bottom: 1rem; /* Space between message and link */
    font-size: 1.1rem;
}

.loading-message {
    text-align: center;
    padding: 3rem 1rem;
    font-size: 1.1rem;
    color: var(--color-muted);
}

/* Dark mode adjustments for error/no posts */
@media (prefers-color-scheme: dark) {
  .error-message,
  .no-posts-message {
    /* background-color: rgba(255, 255, 255, 0.05); */
    /* border-color: rgba(255, 255, 255, 0.1); */
  }
  
  .blog-article-container footer {
    border-top-color: rgba(255, 255, 255, 0.1);
  }
}

/* Language-specific content visibility */
.blog-article-container .post-content {
  display: none !important; /* 默认隐藏所有语言版本 */
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  -ms-user-select: text !important;
  user-select: text !important;
  -webkit-touch-callout: default !important;
  touch-action: auto !important;
}

.blog-article-container .post-content[data-lang-en],
.blog-article-container .post-content[data-lang-zh] {
  display: none !important; /* 默认隐藏所有语言版本 */
}

/* 当前语言版本显示规则 */
.blog-article-container .post-content.active {
  display: block !important;
}

/* Responsive adjustments for blog articles */
@media (max-width: 768px) {
  .blog-article-container .post-content {
    padding-left: 1.5rem; 
    padding-right: 1.5rem;
  }
  
  .blog-article-container h1 {
      font-size: 2.2rem; /* Adjust heading size on smaller screens */
      text-align: center;
  }
  
  .blog-article-container .post-content h2 {
      font-size: 1.8rem;
  }
  
  .blog-article-container .post-content h3 {
       font-size: 1.4rem;
  }
  .blog-article-container .post-meta {
      text-align: center;
  }
}