/* ===== 拙朴健康 - 全局样式 ===== */
:root {
  --primary: #1a5f2a;
  --primary-light: #e8f5e9;
  --accent: #c0392b;
  --bg: #fafafa;
  --text: #333;
  --muted: #666;
  --line: #e5e5e5;
  --max-width: 720px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.85;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ===== 导航栏 ===== */
.navbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar .container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.navbar .brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 1px;
}
.navbar .nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
}
.navbar .nav-links a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.92rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}
.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  border-bottom-color: var(--primary);
  color: var(--primary);
}

/* ===== Header ===== */
header {
  background: var(--primary);
  color: #fff;
  padding: 32px 0 24px;
  text-align: center;
}
header h1 {
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: 2px;
}
header p {
  font-size: 0.95rem;
  opacity: 0.9;
  margin-top: 4px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  max-width: var(--max-width);
  margin: 16px auto 0;
  padding: 0 20px;
  font-size: 0.85rem;
  color: var(--muted);
}
.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { color: #999; margin: 0 6px; }

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

/* ===== 主内容区 ===== */
main {
  background: #fff;
  margin: 20px auto;
  padding: 36px 32px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

h2 {
  color: var(--primary);
  font-size: 1.3rem;
  margin: 32px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary);
}
h2:first-child { margin-top: 0; }
h3 {
  color: var(--text);
  font-size: 1.05rem;
  margin: 20px 0 10px;
  font-weight: 600;
}
p {
  margin-bottom: 14px;
  text-align: justify;
}
ul, ol {
  margin: 12px 0 12px 24px;
}
li {
  margin-bottom: 8px;
}

/* ===== 导读框 ===== */
.lead {
  font-size: 1.08rem;
  color: var(--muted);
  padding: 18px 22px;
  background: #f5f9f5;
  border-left: 4px solid var(--primary);
  margin: 20px 0;
  border-radius: 0 6px 6px 0;
}
.lead p { margin-bottom: 0; }

/* ===== 高亮 ===== */
.highlight {
  color: var(--accent);
  font-weight: 600;
}

/* ===== 引用 ===== */
blockquote {
  margin: 16px 0;
  padding: 12px 18px;
  background: #f8f9fa;
  border-left: 3px solid #ccc;
  font-style: italic;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ===== 作者信息块 ===== */
.author-box {
  margin-top: 40px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 6px;
  border-left: 4px solid var(--primary);
}
.author-box h4 {
  color: var(--primary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.author-box p {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 4px;
}

/* ===== 相关文章 ===== */
.related-posts {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.related-posts h4 {
  color: var(--primary);
  margin-bottom: 12px;
}
.related-posts ul {
  list-style: none;
  margin-left: 0;
}
.related-posts li {
  margin-bottom: 8px;
}
.related-posts a {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.95rem;
}
.related-posts a:hover { text-decoration: underline; }

/* ===== 合规声明 ===== */
.disclaimer {
  margin-top: 32px;
  padding: 16px;
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: 6px;
  font-size: 0.88rem;
  color: #666;
  text-align: center;
}
.disclaimer strong { color: #e65100; }

/* ===== 文章卡片（列表页用）===== */
.article-card {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.article-card:last-child { border-bottom: none; }
.article-card h3 {
  margin: 0 0 6px;
}
.article-card h3 a {
  color: var(--primary);
  text-decoration: none;
  font-size: 1.1rem;
}
.article-card h3 a:hover { text-decoration: underline; }
.article-card .meta {
  font-size: 0.82rem;
  color: #999;
  margin-bottom: 8px;
}
.article-card p {
  font-size: 0.92rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* ===== 产品卡片 ===== */
.product-card {
  padding: 24px;
  margin-bottom: 24px;
  background: #fafafa;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.product-card h3 {
  color: var(--primary);
  margin-top: 0;
}
.product-card .badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  font-size: 0.78rem;
  margin-bottom: 12px;
  font-weight: 500;
}

/* ===== 首页特色 ===== */
.hero {
  background: linear-gradient(135deg, #1a5f2a 0%, #2d8a4e 100%);
  color: #fff;
  padding: 48px 20px;
  text-align: center;
}
.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 2px;
}
.hero p {
  font-size: 1.05rem;
  opacity: 0.92;
  margin: 12px auto 0;
  max-width: 560px;
  text-align: center;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 28px 0;
}
.feature-card {
  text-align: center;
  padding: 20px 12px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.feature-card h3 {
  font-size: 1rem;
  color: var(--primary);
  margin: 0 0 8px;
}
.feature-card p {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
  text-align: center;
}

/* ===== CTA ===== */
.cta-box {
  margin-top: 28px;
  padding: 20px;
  background: #f5f9f5;
  border-radius: 8px;
  text-align: center;
}
.cta-box p {
  margin-bottom: 12px;
  font-size: 0.95rem;
}
.cta-box .cta-text {
  color: var(--primary);
  font-weight: 600;
  font-size: 1.05rem;
}

/* ===== 二维码区域 ===== */
.qr-section {
  margin-top: 32px;
  padding: 28px;
  background: #fff;
  border: 2px solid var(--primary);
  border-radius: 10px;
  text-align: center;
}
.qr-section h3 {
  color: var(--primary);
  margin: 0 0 8px;
  font-size: 1.1rem;
}
.qr-section .qr-subtitle {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 20px;
}
.qr-section .qr-img {
  display: block;
  margin: 0 auto 16px;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.qr-section .qr-id {
  display: inline-block;
  padding: 6px 16px;
  background: #f5f5f5;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--text);
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.qr-section .btn-copy {
  display: inline-block;
  padding: 8px 20px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}
.qr-section .btn-copy:hover {
  background: #145225;
}
.qr-section .qr-tip {
  font-size: 0.8rem;
  color: #999;
  margin-top: 12px;
}

/* ===== Footer ===== */
footer {
  margin-top: 40px;
  padding: 28px 20px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
}
footer a {
  color: var(--primary);
  text-decoration: none;
}
footer .nav-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  list-style: none;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
footer .beian {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 16px;
  background: #e8f0ea;
  border: 1px solid #b8d4be;
  border-radius: 6px;
  font-size: 0.92rem;
  color: #1a5f2a;
  font-weight: 500;
  letter-spacing: 1px;
}
footer .beian a {
  color: #1a5f2a;
  text-decoration: none;
}
footer .beian a:hover {
  text-decoration: underline;
}

/* ===== 404 页面 ===== */
.page-404 {
  text-align: center;
  padding: 60px 20px;
}
.page-404 h2 {
  font-size: 3rem;
  color: #ccc;
  border: none;
  margin: 0;
}
.page-404 p {
  color: var(--muted);
  margin: 16px 0;
}
.page-404 a {
  color: var(--primary);
  font-weight: 600;
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .navbar .nav-links { gap: 16px; }
  .navbar .nav-links a { font-size: 0.82rem; }
  main { padding: 24px 16px; }
  h2 { font-size: 1.15rem; }
  header h1 { font-size: 1.5rem; }
  .hero h1 { font-size: 1.5rem; }
  .features { grid-template-columns: 1fr; }
  .navbar .container { padding: 0 12px; }
}