/* ========================================
   茶叶网站样式 - www.zishateaset.cn
   风格: author-profile
   主色调: #673ab7
   ======================================== */

/* CSS 变量 */
:root {
  --accent-color: #673ab7;
  --accent-light: #7e57c2;
  --accent-dark: #512da8;
  --text-primary: #333;
  --text-secondary: #666;
  --text-muted: #999;
  --bg-primary: #fff;
  --bg-secondary: #f8f6f3;
  --bg-card: #fff;
  --border-color: #e8e4df;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 1200px;
  --header-height: 70px;
}

/* 重置样式 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-secondary);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* ========================================
   布局容器
   ======================================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 60px 0;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text-primary);
}

/* ========================================
   页头 Header
   ======================================== */

.header {
  background: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-color);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav a:hover,
.nav a.active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border-radius: 24px;
  padding: 8px 16px;
  gap: 8px;
}

.search-box input {
  border: none;
  background: none;
  outline: none;
  width: 160px;
  font-size: 0.9rem;
}

.search-box button {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-muted);
}

/* ========================================
   个人资料头部 (Profile Header)
   ======================================== */

.profile-header {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
  color: #fff;
  padding: 80px 0 60px;
  text-align: center;
}

.profile-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.3);
  margin: 0 auto 24px;
  overflow: hidden;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-name {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.profile-role {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 16px;
}

.profile-bio {
  max-width: 600px;
  margin: 0 auto 32px;
  opacity: 0.85;
  line-height: 1.8;
}

.profile-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 32px;
}

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  display: block;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255,255,255,0.15);
  border-radius: 24px;
  color: #fff;
  font-size: 0.9rem;
  transition: background 0.2s;
}

.social-link:hover {
  background: rgba(255,255,255,0.25);
  color: #fff;
}

/* ========================================
   面包屑 Breadcrumb
   ======================================== */

.breadcrumb {
  background: var(--bg-primary);
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.breadcrumb-separator {
  color: var(--text-muted);
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

/* ========================================
   分类头部 Category Header
   ======================================== */

.category-header {
  background: var(--bg-primary);
  padding: 48px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.category-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.category-desc {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 24px;
}

.category-meta {
  display: flex;
  justify-content: center;
  gap: 32px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ========================================
   文章头部 Article Header
   ======================================== */

.article-header {
  background: var(--bg-primary);
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border-color);
}

.article-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
  color: var(--text-primary);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

/* ========================================
   卡片组件 Card
   ======================================== */

.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--bg-secondary);
}

.card-body {
  padding: 20px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--bg-secondary);
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--accent-color);
  margin-bottom: 12px;
}

/* ========================================
   内容列表 Content List
   ======================================== */

.content-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.content-item {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}

.content-item:hover {
  box-shadow: var(--shadow-md);
}

.content-item-image {
  width: 160px;
  height: 120px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--bg-secondary);
}

.content-item-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.content-item-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.content-item-title:hover {
  color: var(--accent-color);
}

.content-item-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
  flex: 1;
}

.content-item-meta {
  display: flex;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========================================
   网格布局 Grid
   ======================================== */

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

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

.grid-2-1 {
  grid-template-columns: 2fr 1fr;
}

/* ========================================
   三栏布局 (首页推荐)
   ======================================== */

.three-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.column-section {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.column-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
  color: var(--text-primary);
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-list-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.article-list-item:last-child {
  border-bottom: none;
}

.article-list-item a {
  color: var(--text-primary);
  font-size: 0.95rem;
  display: block;
  margin-bottom: 4px;
}

.article-list-item a:hover {
  color: var(--accent-color);
}

.article-list-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ========================================
   文章正文 Article Content
   ======================================== */

.article-content {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.article-content img {
  width: 100%;
  border-radius: var(--radius-sm);
  margin: 24px 0;
}

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

.article-content li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.article-content ul li {
  list-style: disc;
}

.article-content ol li {
  list-style: decimal;
}

/* ========================================
   特色图片 Featured Image
   ======================================== */

.featured-image {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 32px;
}

/* ========================================
   分页 Pagination
   ======================================== */

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.pagination a:hover {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

.pagination .current {
  background: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

.pagination .prev,
.pagination .next {
  padding: 0 16px;
}

/* ========================================
   相关文章 Related Articles
   ======================================== */

.related-section {
  background: var(--bg-primary);
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ========================================
   推荐文章 Recommended
   ======================================== */

.recommended-section {
  background: var(--bg-secondary);
  padding: 40px 0;
}

.recommended-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.recommended-link {
  padding: 8px 16px;
  background: var(--bg-card);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.recommended-link:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* ========================================
   页脚 Footer
   ======================================== */

.footer {
  background: var(--text-primary);
  color: #fff;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}

.footer-desc {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: #fff;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
}

/* ========================================
   404 页面
   ======================================== */

.error-page {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

.error-content {
  max-width: 500px;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.8;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.error-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-primary {
  background: var(--accent-color);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .nav {
    display: none;
  }

  .search-box {
    display: none;
  }

  .profile-header {
    padding: 60px 0 40px;
  }

  .profile-name {
    font-size: 1.8rem;
  }

  .profile-stats {
    gap: 24px;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .social-links {
    flex-wrap: wrap;
  }

  .three-columns,
  .grid-3,
  .grid-4,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .content-item {
    flex-direction: column;
  }

  .content-item-image {
    width: 100%;
    height: 180px;
  }

  .article-content {
    padding: 24px;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .error-code {
    font-size: 5rem;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 40px 0;
  }

  .pagination a,
  .pagination span {
    min-width: 36px;
    height: 36px;
    font-size: 0.85rem;
  }
}