/* 陶瓷雕塑 - 全局样式 */
:root {
  --accent-color: #8B4513;
  --accent-light: #D2691E;
  --bg-primary: #FAF8F5;
  --bg-secondary: #F5F0EB;
  --text-primary: #2C1810;
  --text-secondary: #6B5B4F;
  --text-muted: #9B8B7F;
  --border-color: #E8E0D8;
  --white: #FFFFFF;
  --shadow: 0 2px 8px rgba(44, 24, 16, 0.08);
  --shadow-hover: 0 4px 16px rgba(44, 24, 16, 0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --header-height: 64px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

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

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

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

/* 头部导航 */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo::before {
  content: "◈";
  font-size: 28px;
}

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

.nav a {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

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

.search-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.search-btn:hover {
  background: var(--border-color);
}

/* 个人资料头部 */
.profile-header {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  padding: 60px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--accent-color);
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--white);
  box-shadow: var(--shadow);
}

.profile-name {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.profile-role {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.profile-bio {
  max-width: 600px;
  margin: 0 auto 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

.profile-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 24px;
}

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

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-color);
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.profile-links {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.profile-link {
  padding: 10px 20px;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.profile-link:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  box-shadow: var(--shadow);
}

/* 面包屑导航 */
.breadcrumb {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  font-size: 14px;
  color: var(--text-muted);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--border-color);
}

/* 主内容区 */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px;
}

/* 内容卡片 */
.content-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

/* 文章列表 */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-item {
  display: flex;
  gap: 20px;
  padding: 16px;
  background: var(--bg-primary);
  border-radius: var(--radius);
  transition: all 0.2s;
}

.article-item:hover {
  background: var(--bg-secondary);
}

.article-thumb {
  width: 120px;
  height: 90px;
  border-radius: var(--radius);
  background: var(--border-color);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 13px;
}

.article-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

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

.article-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* 三栏布局 */
.three-column {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.column-section {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
}

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

.link-list {
  list-style: none;
}

.link-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
}

.link-list li:last-child {
  border-bottom: none;
}

.link-list a {
  color: var(--text-secondary);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.link-list a::before {
  content: "•";
  color: var(--accent-color);
}

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

/* 分类页标题 */
.category-header {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: 32px;
}

.category-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.category-desc {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 600px;
  margin: 0 auto 20px;
}

.category-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  font-size: 14px;
  color: var(--text-muted);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination a,
.pagination span {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 14px;
  transition: all 0.2s;
}

.pagination a {
  background: var(--white);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

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

.pagination .current {
  background: var(--accent-color);
  color: var(--white);
}

/* 文章详情页 */
.article-header {
  text-align: center;
  margin-bottom: 32px;
}

.article-header h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.4;
}

.article-meta-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  color: var(--text-muted);
}

.article-meta-bar .author {
  color: var(--accent-color);
  font-weight: 500;
}

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

.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-content p {
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text-primary);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

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

/* 相关文章 */
.related-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.related-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}

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

.related-item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s;
}

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

.related-thumb {
  height: 140px;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 13px;
}

.related-info {
  padding: 16px;
}

.related-item-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

/* 404页面 */
.error-page {
  text-align: center;
  padding: 80px 24px;
}

.error-code {
  font-size: 120px;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.6;
}

.error-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

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

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

.btn {
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-light);
  color: var(--white);
}

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

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

/* 页脚 */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 24px;
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
}

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

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* 响应式设计 */
@media (max-width: 992px) {
  .three-column {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .logo {
    font-size: 18px;
  }

  .nav {
    display: none;
  }

  .profile-header {
    padding: 40px 16px;
  }

  .profile-name {
    font-size: 24px;
  }

  .profile-stats {
    gap: 24px;
  }

  .stat-value {
    font-size: 22px;
  }

  .main {
    padding: 24px 16px;
  }

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

  .article-thumb {
    width: 100%;
    height: 180px;
  }

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

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

  .error-code {
    font-size: 80px;
  }

  .category-stats {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .profile-links {
    flex-wrap: wrap;
    padding: 0 16px;
  }

  .profile-link {
    flex: 1;
    min-width: 100px;
    text-align: center;
  }

  .error-actions {
    flex-direction: column;
    padding: 0 32px;
  }

  .btn {
    width: 100%;
  }
}