/**
 * 组件样式：卡片、按钮、标签、文章、Agent 卡片等
 */

/* 按钮 */
.btn-blog {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 0;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-blog-primary {
  background-color: var(--accent-amber);
  color: var(--bg-primary);
  border-color: var(--accent-amber);
}

.btn-blog-primary:hover {
  background-color: var(--accent-amber-hover);
  border-color: var(--accent-amber-hover);
  color: var(--bg-primary);
  box-shadow: 0 4px 20px rgba(232, 168, 56, 0.25);
}

.btn-blog-outline {
  background-color: transparent;
  color: var(--accent-cyan);
  border-color: var(--accent-cyan-dim);
}

.btn-blog-outline:hover {
  background-color: rgba(102, 252, 241, 0.08);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-blog-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

/* 标签胶囊 */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  background-color: rgba(102, 252, 241, 0.04);
  transition: all var(--transition-fast);
}

.tag:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.tag-amber {
  border-color: var(--border-strong);
  color: var(--accent-amber);
  background-color: rgba(232, 168, 56, 0.06);
}

/* 文章卡片 */
.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.article-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  border-color: rgba(102, 252, 241, 0.25);
}

.article-card-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.article-card:hover .article-card-image img {
  transform: scale(1.05);
}

.article-card-category {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
}

.article-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-card-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.article-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.article-card-title a {
  color: var(--text-primary);
}

.article-card-title a:hover {
  color: var(--accent-cyan);
}

.article-card-summary {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  flex: 1;
}

.article-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* 横向文章项 */
.article-list-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.25rem;
  transition: all var(--transition-base);
}

.article-list-item:hover {
  border-color: rgba(102, 252, 241, 0.2);
  background-color: var(--bg-card-hover);
}

.article-list-item .article-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.article-list-item .article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 767.98px) {
  .article-list-item {
    grid-template-columns: 1fr;
  }
}

/* 精选大卡片 */
.featured-card {
  position: relative;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.featured-card-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.featured-card-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.45);
}

.featured-card-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 12, 16, 0.95) 0%, rgba(11, 12, 16, 0.4) 60%, transparent 100%);
}

.featured-card-content {
  position: relative;
  z-index: 1;
}

.featured-card-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.featured-card-title a {
  color: var(--text-primary);
}

.featured-card-title a:hover {
  color: var(--accent-cyan);
}

/* 分类卡片 */
.category-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.category-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 25px rgba(102, 252, 241, 0.08);
  transform: translateY(-4px);
}

.category-card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  color: var(--accent-amber);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.category-card-title {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.category-card-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
}

/* Agent 卡片 */
.agent-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.agent-card:hover {
  border-color: var(--accent-amber);
  transform: translateY(-6px);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.3);
}

.agent-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.agent-card-name {
  font-size: 1.375rem;
  margin-bottom: 0.25rem;
}

.agent-card-category {
  font-size: 0.75rem;
  color: var(--accent-amber);
  font-family: var(--font-mono);
}

.agent-card-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1.25rem;
}

.agent-card-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

/* 文章正文 */
.article-content {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--text-secondary);
}

.article-content h2 {
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-content p {
  margin-bottom: 1.5rem;
}

.article-content .lead {
  font-size: 1.25rem;
  color: var(--text-primary);
  line-height: 1.8;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

/* 目录 */
.toc-wrapper {
  position: sticky;
  top: 100px;
  padding: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
}

.toc-title {
  font-size: 0.875rem;
  font-family: var(--font-mono);
  color: var(--accent-amber);
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: 0.5rem;
}

.toc-list a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  display: block;
  padding: 0.25rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
  transition: all var(--transition-fast);
}

.toc-list a:hover,
.toc-list a.active {
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
}

/* 作者卡片 */
.author-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-strong);
}

.author-name {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.author-bio {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

/* 订阅区 */
.newsletter-section {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(31, 40, 51, 0.5) 100%);
  border: 1px solid var(--border-color);
  padding: 4rem 2rem;
  text-align: center;
}

.newsletter-form {
  max-width: 520px;
  margin: 0 auto;
  display: flex;
  gap: 0.75rem;
}

@media (max-width: 575.98px) {
  .newsletter-form {
    flex-direction: column;
  }
}

/* 状态提示 */
.toast-blog {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1090;
  background-color: var(--bg-card);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  padding: 1rem 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  transform: translateY(120%);
  transition: transform var(--transition-base);
}

.toast-blog.show {
  transform: translateY(0);
}