/**
 * 文章详情页样式
 */

/* 文章头部 */
.post-hero {
  background: linear-gradient(135deg, var(--bg-oxford-blue) 0%, var(--bg-oxford-blue-2) 100%);
  padding: 120px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.post-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(52, 152, 219, 0.1) 0%, transparent 70%);
}

.post-hero .container {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.post-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}

.post-category {
  background: var(--bg-carolina-blue);
  color: var(--text-white);
  padding: 6px 15px;
  border-radius: 50px;
  font-size: var(--fs-7);
  font-weight: var(--fw-500);
}

.post-date {
  color: var(--text-columbia-blue);
  font-size: var(--fs-6);
  font-weight: var(--fw-500);
}

.post-hero .headline-lg {
  color: var(--text-white);
  margin-bottom: 30px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.3;
}

.post-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}

.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--bg-carolina-blue);
}

.author-info {
  text-align: left;
}

.author-name {
  color: var(--text-white);
  font-size: var(--fs-6);
  font-weight: var(--fw-500);
  display: block;
  margin-bottom: 5px;
}

.author-role {
  color: var(--text-columbia-blue);
  font-size: var(--fs-7);
}

/* 文章内容 */
.post-content {
  padding: 60px 0;
  background-color: var(--bg-oxford-blue);
}

.post-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-oxford-blue-2);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.post-banner {
  margin: -40px -40px 40px;
  border-radius: 20px 20px 0 0;
  overflow: hidden;
}

.post-banner img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.post-text {
  color: var(--text-columbia-blue);
  font-size: var(--fs-6);
  line-height: 1.8;
}

.post-text .heading {
  color: var(--text-white);
  font-size: var(--fs-3);
  margin: 40px 0 20px;
}

.post-text .paragraph {
  margin-bottom: 20px;
}

.post-text .quote {
  background: var(--bg-oxford-blue);
  padding: 30px;
  border-left: 4px solid var(--bg-carolina-blue);
  border-radius: 10px;
  margin: 30px 0;
  font-style: italic;
  color: var(--text-white);
}

/* 文章标签 */
.post-tags {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border-prussian-blue);
}

.tag-label {
  color: var(--text-white);
  font-size: var(--fs-6);
  margin-right: 15px;
}

.tags-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.tag {
  background: var(--bg-oxford-blue);
  color: var(--text-columbia-blue);
  padding: 6px 15px;
  border-radius: 50px;
  font-size: var(--fs-7);
  transition: all 0.3s ease;
  border: 1px solid var(--border-prussian-blue);
}

.tag:hover {
  background: var(--bg-carolina-blue);
  color: var(--text-white);
  transform: translateY(-2px);
}

/* 分享按钮 */
.post-share {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-prussian-blue);
  display: flex;
  align-items: center;
}

.share-label {
  color: var(--text-white);
  font-size: var(--fs-6);
  margin-right: 15px;
}

.share-buttons {
  display: flex;
  gap: 15px;
}

.share-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-oxford-blue);
  color: var(--text-columbia-blue);
  border-radius: 50%;
  font-size: var(--fs-5);
  transition: all 0.3s ease;
  border: 1px solid var(--border-prussian-blue);
}

.share-btn:hover {
  background: var(--bg-carolina-blue);
  color: var(--text-white);
  transform: translateY(-2px);
}

/* 相关文章 */
.related-posts {
  background: var(--bg-oxford-blue);
  padding: 60px 0;
}

.related-posts .section-title {
  color: var(--text-white);
  text-align: center;
  margin-bottom: 40px;
}

.related-posts-grid {
  display: grid;
  gap: 30px;
  margin: 0 auto;
  max-width: 1000px;
}

@media (min-width: 768px) {
  .related-posts-grid {
    grid-template-columns: 1fr 1fr;
  }

  .post-wrapper {
    padding: 60px;
  }

  .post-banner {
    margin: -60px -60px 60px;
  }
}

@media (max-width: 767px) {
  .post-wrapper {
    padding: 20px;
  }

  .post-banner {
    margin: -20px -20px 20px;
  }

  .post-text .heading {
    font-size: var(--fs-4);
  }

  .post-meta {
    flex-direction: column;
    gap: 10px;
  }
}