/* ============================================
   烘焙工具 - 资源导航风格样式表
   www.hongbeishequ.cn
   致力于打造烘焙爱好者交流平台
   ============================================ */

/* CSS 变量定义 */
:root {
  --accent-color: #e67e22;
  --accent-hover: #d35400;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #999999;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-card: #ffffff;
  --border-color: #e8e8e8;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --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", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

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

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

ul, ol {
  list-style: none;
}

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

/* ============================================
   布局容器
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   页头 Header
   ============================================ */
.header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-color);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

/* ============================================
   搜索框
   ============================================ */
.search-box {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.search-box input {
  width: 100%;
  padding: 16px 24px;
  padding-right: 50px;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 50px;
  background: var(--bg-primary);
  outline: none;
  transition: border-color 0.2s ease;
}

.search-box input:focus {
  border-color: var(--accent-color);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box button {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: var(--accent-color);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.search-box button:hover {
  background: var(--accent-hover);
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
  background: linear-gradient(135deg, #faf7f2 0%, #f5ebe0 100%);
  padding: 60px 0;
  text-align: center;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   分类筛选
   ============================================ */
.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
}

.category-filter a {
  padding: 10px 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.category-filter a:hover,
.category-filter a.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
}

/* ============================================
   主内容区域
   ============================================ */
.main {
  padding: 40px 0;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--accent-color);
  border-radius: 2px;
}

/* ============================================
   链接卡片
   ============================================ */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.link-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

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

.link-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.link-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.link-info {
  flex: 1;
  min-width: 0;
}

.link-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.link-url {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.link-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.link-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.link-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.verified {
  color: #27ae60;
}

/* ============================================
   分类区块
   ============================================ */
.category-section {
  margin-bottom: 48px;
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.category-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

.view-all {
  font-size: 0.9rem;
  color: var(--accent-color);
  font-weight: 500;
}

/* ============================================
   统计信息
   ============================================ */
.stats-bar {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  margin-bottom: 40px;
}

.stats-bar .container {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

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

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-color);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ============================================
   文章列表
   ============================================ */
.article-section {
  margin-top: 48px;
}

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

.article-list {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.article-list-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent-color);
}

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

.article-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.article-list li::before {
  content: '•';
  color: var(--accent-color);
  font-weight: bold;
}

.article-list a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

/* ============================================
   面包屑导航
   ============================================ */
.breadcrumb {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.breadcrumb li:not(:last-child)::after {
  content: '>';
  margin-left: 8px;
  color: var(--text-muted);
}

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

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

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

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

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

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

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

/* ============================================
   文章详情页
   ============================================ */
.article-header {
  background: var(--bg-primary);
  padding: 40px 0;
  border-bottom: 1px solid var(--border-color);
}

.article-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

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

.article-content {
  background: var(--bg-primary);
  padding: 40px 0;
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-primary);
}

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

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

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

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

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body a {
  color: var(--accent-color);
  text-decoration: underline;
}

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

/* ============================================
   标签
   ============================================ */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.tag {
  padding: 6px 14px;
  background: var(--bg-secondary);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.tag:hover {
  background: var(--accent-color);
  color: white;
}

/* ============================================
   404 页面
   ============================================ */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

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

.error-title {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--accent-color);
  color: white;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 500;
  transition: background 0.2s ease;
}

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

/* ============================================
   页脚 Footer
   ============================================ */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0 24px;
  margin-top: 60px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}

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

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

/* 平板设备 (768px - 1023px) */
@media (max-width: 1023px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .hero-title {
    font-size: 1.875rem;
  }
}

/* 移动设备 (< 768px) */
@media (max-width: 767px) {
  :root {
    --header-height: 56px;
  }

  .header .container {
    padding: 0 16px;
  }

  .nav {
    display: none;
  }

  .hero {
    padding: 40px 0;
  }

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

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

  .search-box input {
    padding: 14px 20px;
    padding-right: 46px;
  }

  .category-filter {
    gap: 8px;
  }

  .category-filter a {
    padding: 8px 16px;
    font-size: 0.85rem;
  }

  .link-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .stats-bar .container {
    gap: 24px;
  }

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

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

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

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

  .footer-brand {
    max-width: 100%;
  }

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

  .pagination {
    flex-wrap: wrap;
  }
}

/* 小屏移动设备 (< 480px) */
@media (max-width: 479px) {
  .container {
    padding: 0 16px;
  }

  .link-card {
    padding: 16px;
  }

  .link-icon {
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
  }

  .link-title {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.25rem;
  }
}