/* 文章详情页专用样式 */

/* 面包屑导航 — 大屏自适应宽度 */
.breadcrumb {
  max-width: 1100px;
  margin: 0 auto 20px;
  padding: 20px 24px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: #8892b0;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--accent-color);
}

.breadcrumb-sep {
  color: #495670;
  font-size: 0.9rem;
}

.breadcrumb-current {
  color: var(--accent-color);
  font-size: 0.9rem;
}

/* 文章主容器 */
.article-main {
  padding-top: 20px;
  padding-bottom: 60px;
  min-height: 80vh;
}

.article-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 大屏下让内容充分利用空间 */
@media (min-width: 1600px) {
  .article-container {
    max-width: 1300px;
  }

  .article-header {
    /* 不限制宽度，跟随容器 */
  }

  .article-body {
    font-size: 1.12rem;
    line-height: 1.95;
  }

  /* 正文内段落在大屏下限制最佳阅读行宽（~75字符），
     图片/表格/代码块等块级元素不受限制 */
  .article-body > p,
  .article-body > ul,
  .article-body > ol,
  .article-body > blockquote {
    max-width: 900px;
  }

  .article-actions {
    /* 不限制宽度 */
  }

  .related-articles {
    /* 不限制宽度，跟随容器 */
  }
}

/* 封面图 */
.article-cover {
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 30px;
  border: 1px solid rgba(100, 255, 218, 0.08);
}

.article-cover img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

@media (min-width: 1600px) {
  .article-cover img {
    max-height: 560px;
  }
}

/* 文章头部 */
.article-header {
  margin-bottom: 30px;
  padding-bottom: 25px;
  border-bottom: 1px solid rgba(100, 255, 218, 0.1);
}

.article-category {
  display: inline-block;
  background: rgba(100, 255, 218, 0.15);
  color: var(--accent-color);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  margin-bottom: 15px;
}

.article-title {
  font-size: 2.2rem;
  color: #e6f1ff;
  line-height: 1.4;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  gap: 24px;
  color: #8892b0;
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta i {
  color: var(--accent-color);
  font-size: 0.85rem;
}

/* 文章正文 */
.article-body {
  line-height: 1.9;
  color: #ccd6f6;
  font-size: 1.05rem;
  margin-bottom: 40px;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--accent-color);
  margin: 30px 0 15px;
  line-height: 1.3;
}

.article-body h2 { font-size: 1.7rem; }
.article-body h3 { font-size: 1.4rem; }
.article-body h4 { font-size: 1.2rem; }

.article-body p {
  margin-bottom: 16px;
}

.article-body ul,
.article-body ol {
  margin: 16px 0;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 10px;
}

.article-body img {
  max-width: 100%;
  border-radius: 8px;
  margin: 18px 0;
}

.article-body blockquote {
  border-left: 4px solid var(--accent-color);
  padding: 15px 20px;
  margin: 20px 0;
  background: rgba(100, 255, 218, 0.05);
  border-radius: 0 8px 8px 0;
  color: #a0c4ff;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: rgba(26, 42, 71, 0.5);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(100, 255, 218, 0.1);
}

.article-body th,
.article-body td {
  padding: 12px 15px;
  text-align: left;
  border: 1px solid rgba(100, 255, 218, 0.08);
}

.article-body th {
  background: rgba(100, 255, 218, 0.15);
  color: var(--accent-color);
  font-weight: 600;
}

.article-body tr:nth-child(even) {
  background: rgba(17, 34, 64, 0.3);
}

.article-body a {
  color: var(--accent-color);
  text-decoration: none;
  border-bottom: 1px solid rgba(100, 255, 218, 0.3);
  transition: var(--transition);
}

.article-body a:hover {
  border-bottom-color: var(--accent-color);
}

.article-body strong {
  color: #e6f1ff;
  font-weight: 600;
}

.article-body code {
  background: rgba(100, 255, 218, 0.1);
  color: var(--accent-color);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  font-size: 0.9em;
}

.article-body pre {
  background: rgba(17, 34, 64, 0.6);
  border: 1px solid rgba(100, 255, 218, 0.1);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
}

.article-body pre code {
  background: none;
  padding: 0;
}

/* 底部操作栏 */
.article-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 0;
  border-top: 1px solid rgba(100, 255, 218, 0.1);
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 15px;
}

.back-to-list-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #8892b0;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid rgba(100, 255, 218, 0.15);
  transition: var(--transition);
  font-size: 0.95rem;
}

.back-to-list-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background: rgba(100, 255, 218, 0.05);
}

/* 相关文章 */
.related-articles {
  border-top: 1px solid rgba(100, 255, 218, 0.1);
  padding-top: 30px;
}

.related-title {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.related-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--accent-color);
  border-radius: 2px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  background: rgba(26, 42, 71, 0.5);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(100, 255, 218, 0.05);
  transition: border-color 0.2s ease;
  text-decoration: none;
  display: block;
}

.related-card:hover {
  border-color: rgba(100, 255, 218, 0.3);
}

.related-card-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.related-card-body {
  padding: 15px;
}

.related-card-category {
  font-size: 0.75rem;
  color: var(--accent-color);
  background: rgba(100, 255, 218, 0.1);
  padding: 2px 10px;
  border-radius: 12px;
  display: inline-block;
  margin-bottom: 8px;
}

.related-card-title {
  font-size: 1rem;
  color: #ccd6f6;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card:hover .related-card-title {
  color: var(--accent-color);
}

/* 加载/错误状态 */
.article-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  color: #8892b0;
}

.article-loading .loading-spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(100, 255, 218, 0.3);
  border-radius: 50%;
  border-top-color: #64ffda;
  animation: spin 1s ease-in-out infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.article-error {
  text-align: center;
  padding: 80px 20px;
  color: #8892b0;
}

.article-error i {
  font-size: 4rem;
  color: #ff6b6b;
  display: block;
  margin-bottom: 20px;
}

.article-error h2 {
  color: #ff6b6b;
  margin-bottom: 10px;
}

.article-error p {
  margin-bottom: 25px;
}

/* 响应式 */
@media (max-width: 768px) {
  .article-title {
    font-size: 1.6rem;
  }

  .article-body {
    font-size: 1rem;
  }

  .article-meta {
    gap: 12px;
    font-size: 0.85rem;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-cover img {
    max-height: 250px;
  }

  .article-actions {
    flex-direction: column;
  }
}

/* 大屏优化 */
@media (min-width: 1600px) {
  .article-title {
    font-size: 2.6rem;
  }

  .article-body h2 { font-size: 1.9rem; }
  .article-body h3 { font-size: 1.6rem; }
  .article-body h4 { font-size: 1.3rem; }

  .article-meta {
    font-size: 1.05rem;
  }

  .related-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .breadcrumb {
    max-width: 1300px;
    font-size: 0.95rem;
  }

  .related-card-img {
    height: 170px;
  }
}