/* 古董瓷器 - 样式表 */
/* 查询关键词: 古董瓷器 www.taocigong.cn 专注于古董瓷器交易与投资 提供市场行情 鉴定估价和投资建议 */

/* CSS 变量 */
:root {
  --primary-color: #8B4513;
  --secondary-color: #D4A574;
  --accent-color: #9c27b0;
  --bg-color: #FDF8F3;
  --card-bg: #FFFFFF;
  --text-primary: #2C1810;
  --text-secondary: #6B5B4F;
  --border-color: #E8DDD4;
  --shadow: 0 2px 8px rgba(44, 24, 16, 0.08);
  --shadow-hover: 0 4px 16px rgba(44, 24, 16, 0.12);
  --radius: 8px;
  --max-width: 1200px;
  --header-height: 64px;
}

/* 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", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-color);
}

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

a:hover {
  color: var(--secondary-color);
}

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

ul, ol {
  list-style: none;
}

/* 布局容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 页头 */
.header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  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: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
}

.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(--primary-color);
  border-bottom-color: var(--primary-color);
}

.search-box {
  position: relative;
}

.search-box input {
  width: 240px;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  background: var(--bg-color);
  font-size: 0.875rem;
  transition: all 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  width: 280px;
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.875rem;
}

/* Hero 区域 */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, #6B3410 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero p {
  font-size: 1.125rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-search {
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

.hero-search input {
  width: 100%;
  padding: 16px 24px;
  border: none;
  border-radius: 32px;
  font-size: 1rem;
  box-shadow: var(--shadow-hover);
}

.hero-search input:focus {
  outline: none;
}

/* 快捷链接 */
.quick-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.quick-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  color: white;
  font-weight: 500;
  transition: all 0.2s;
}

.quick-link:hover {
  background: rgba(255, 255, 255, 0.25);
  color: white;
}

/* 内容区块 */
.section {
  padding: 64px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

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

.section-more {
  color: var(--primary-color);
  font-weight: 500;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

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

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card-image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--bg-color), var(--border-color));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.card-body {
  padding: 20px;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.card-tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--bg-color);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--primary-color);
  margin-bottom: 12px;
}

/* 列表样式 */
.list-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.list-number {
  width: 32px;
  height: 32px;
  background: var(--bg-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--primary-color);
  flex-shrink: 0;
}

.list-content h4 {
  font-weight: 600;
  margin-bottom: 4px;
}

.list-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* 三栏布局 */
.three-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

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

.column-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

/* 面包屑 */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

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

.breadcrumb span {
  margin: 0 8px;
}

/* 分类页特定样式 */
.category-hero {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 48px 0;
}

.category-hero h1 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.category-hero p {
  color: var(--text-secondary);
  max-width: 600px;
}

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

.module-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: all 0.2s;
}

.module-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow);
}

.module-item h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.module-item p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* 文章页特定样式 */
.article-layout {
  display: grid;
  grid-template-columns: 240px 1fr 240px;
  gap: 40px;
  padding: 32px 0;
}

.sidebar-left {
  position: sticky;
  top: 80px;
  height: fit-content;
}

.sidebar-right {
  position: sticky;
  top: 80px;
  height: fit-content;
}

.toc {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.toc-title {
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.toc ul {
  font-size: 0.875rem;
}

.toc li {
  margin-bottom: 8px;
}

.toc a {
  color: var(--text-secondary);
  display: block;
  padding: 4px 0;
}

.toc a:hover {
  color: var(--primary-color);
}

.article-content {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.article-content h1 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.article-content h2 {
  font-size: 1.5rem;
  margin: 32px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
}

.article-content p {
  margin-bottom: 16px;
  line-height: 1.8;
}

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

.article-content ul li {
  list-style: disc;
  margin-bottom: 8px;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: 8px;
}

.code-block {
  background: #2C1810;
  color: #FDF8F3;
  border-radius: var(--radius);
  padding: 20px;
  margin: 20px 0;
  overflow-x: auto;
}

.code-block pre {
  font-family: "SF Mono", Monaco, "Cascadia Code", monospace;
  font-size: 0.875rem;
  line-height: 1.6;
}

.info-box {
  background: var(--bg-color);
  border-left: 4px solid var(--primary-color);
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.info-box-title {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary-color);
}

/* 404 页面 */
.error-page {
  min-height: calc(100vh - var(--header-height) - 300px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
  margin-bottom: 24px;
}

.error-title {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary-color);
  color: white;
  border-radius: 24px;
  font-weight: 500;
  transition: all 0.2s;
}

.btn:hover {
  background: var(--secondary-color);
  color: white;
}

/* 页脚 */
.footer {
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 24px;
  margin-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 0.875rem;
}

.footer-column h4 {
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-column ul li {
  margin-bottom: 8px;
}

.footer-column a {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-column a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .sidebar-left,
  .sidebar-right {
    position: static;
    order: 2;
  }

  .article-content {
    order: 1;
  }

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

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

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .search-box {
    display: none;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .quick-links {
    flex-direction: column;
    align-items: center;
  }

  .quick-link {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

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

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .article-content {
    padding: 24px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 40px 0;
  }

  .column {
    padding: 16px;
  }
}