/* ===========================================================
   养天年 - 现代化响应式改版
   Design: Clean, Medical/Health, Mobile-first
   =========================================================== */

/* ----- Reset & Base ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #333;
  background: #f5f7fa;
}

a { color: #2d8a4e; text-decoration: none; transition: color .2s; }
a:hover { color: #1a6b37; text-decoration: underline; }
img { max-width: 100%; height: auto; border: none; }
h1, h2, h3, h4, h5, h6 { margin: 0 0 .5em; line-height: 1.3; font-weight: 600; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.5em; }

/* ----- Container ----- */
.wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ----- Header ----- */
.site-header {
  background: linear-gradient(135deg, #1a6b37 0%, #2d8a4e 50%, #3aa35d 100%);
  color: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,.12);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-logo a {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
}
.site-logo a:hover { color: #e8f5e9; text-decoration: none; }
.site-logo .logo-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.main-nav { display: flex; gap: 8px; flex-wrap: wrap; }
.main-nav a {
  color: rgba(255,255,255,.85);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  transition: all .2s;
}
.main-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,.15);
  text-decoration: none;
}

/* ----- Hero Section (Homepage) ----- */
.hero {
  background: linear-gradient(135deg, #2d8a4e 0%, #4caf50 100%);
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}
.hero h1 {
  font-size: 36px; margin: 0 0 12px; font-weight: 700;
}
.hero p {
  font-size: 18px; opacity: .9; max-width: 600px; margin: 0 auto;
}

/* ----- Breadcrumb ----- */
.breadcrumb {
  background: #fff;
  border-bottom: 1px solid #e8ecf0;
  padding: 12px 0;
  font-size: 14px;
  color: #888;
}
.breadcrumb .wrapper { display: flex; align-items: center; gap: 6px; }
.breadcrumb a { color: #2d8a4e; }
.breadcrumb .sep { color: #ccc; }

/* ----- Content Area ----- */
.content-area {
  max-width: 1100px;
  margin: 30px auto;
  padding: 0 20px;
  display: flex;
  gap: 30px;
}

.content-main {
  flex: 1;
  min-width: 0;
}
.content-sidebar {
  width: 300px;
  flex-shrink: 0;
}

/* ----- Main Content Box ----- */
.main-box {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
  padding: 30px;
}
.main-box h1.page-title {
  font-size: 28px;
  color: #1a6b37;
  border-bottom: 2px solid #e8f5e9;
  padding-bottom: 12px;
  margin-bottom: 20px;
}
.main-box h2 { color: #1a6b37; font-size: 22px; margin-top: 30px; }
.main-box h3 { color: #333; font-size: 18px; margin-top: 24px; }

/* ----- Article List (Card Style) ----- */
.article-list { list-style: none; padding: 0; margin: 0; }
.article-list li {
  padding: 20px 0;
  border-bottom: 1px solid #f0f0f0;
}
.article-list li:last-child { border-bottom: none; }
.article-list .article-title {
  font-size: 20px; font-weight: 600; margin: 0 0 6px;
}
.article-list .article-title a { color: #222; }
.article-list .article-title a:hover { color: #2d8a4e; text-decoration: none; }
.article-list .article-meta {
  font-size: 13px; color: #999; margin: 0 0 8px;
}
.article-list .article-meta span { margin-right: 14px; }
.article-list .article-summary {
  font-size: 15px; color: #666; line-height: 1.6;
}

/* ----- Article Page Content ----- */
.article-content { font-size: 16px; line-height: 1.9; color: #333; }
.article-content p { margin: 0 0 1.2em; }
.article-content h3 {
  font-size: 20px;
  color: #1a6b37;
  border-left: 4px solid #4caf50;
  padding-left: 12px;
  margin: 30px 0 16px;
}
.article-content ul, .article-content ol { margin: 0 0 1.2em; }
.article-content li { margin-bottom: 6px; }
.article-content strong { color: #222; }

.article-header {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e8ecf0;
}
.article-header h1 {
  font-size: 28px; color: #1a6b37; margin: 0 0 10px;
}
.article-meta-bar {
  font-size: 14px; color: #999; display: flex; gap: 16px; flex-wrap: wrap;
}
.article-meta-bar span { display: flex; align-items: center; gap: 4px; }

/* ----- Pagination ----- */
.pagination {
  margin-top: 24px; padding-top: 16px;
  border-top: 1px solid #e8ecf0;
  display: flex; gap: 8px; flex-wrap: wrap;
}
.pagination a, .pagination strong {
  display: inline-block; padding: 6px 14px;
  border: 1px solid #ddd; border-radius: 6px;
  font-size: 14px; color: #555; transition: all .2s;
}
.pagination a:hover {
  border-color: #2d8a4e; color: #2d8a4e; text-decoration: none;
}
.pagination strong {
  background: #2d8a4e; color: #fff; border-color: #2d8a4e;
}

/* ----- Sidebar ----- */
.sidebar-box {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
  padding: 20px;
  margin-bottom: 20px;
}
.sidebar-box h3 {
  font-size: 16px; color: #1a6b37;
  border-bottom: 2px solid #e8f5e9;
  padding-bottom: 10px; margin-bottom: 14px;
}
.sidebar-box ul {
  list-style: none; padding: 0; margin: 0;
}
.sidebar-box li {
  padding: 8px 0; border-bottom: 1px solid #f5f5f5;
}
.sidebar-box li:last-child { border-bottom: none; }
.sidebar-box li a {
  font-size: 14px; color: #555;
}
.sidebar-box li a:hover { color: #2d8a4e; }

/* ----- Footer ----- */
.site-footer {
  background: #263238;
  color: rgba(255,255,255,.7);
  padding: 40px 20px 30px;
  margin-top: 40px;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; gap: 40px; flex-wrap: wrap;
}
.footer-col { flex: 1; min-width: 180px; }
.footer-col h4 {
  color: #fff; font-size: 15px; margin: 0 0 12px;
}
.footer-col a {
  display: block; color: rgba(255,255,255,.6);
  font-size: 14px; margin-bottom: 6px;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 30px; padding-top: 20px;
  text-align: center; font-size: 13px;
  max-width: 1100px; margin-left: auto; margin-right: auto;
}

/* ----- Response for Guests ----- */
.tag-list { display: flex; gap: 8px; flex-wrap: wrap; margin: 16px 0; }
.tag-list a {
  display: inline-block; padding: 4px 12px;
  background: #e8f5e9; color: #2d8a4e; border-radius: 4px;
  font-size: 13px;
}
.tag-list a:hover { background: #2d8a4e; color: #fff; text-decoration: none; }

/* ----- Digg / Rating ----- */
.digg-box { margin: 24px 0; text-align: center; }
.digg-box a {
  display: inline-block; padding: 10px 24px;
  border-radius: 8px; font-size: 15px; margin: 0 6px;
}
.digg-up { background: #e8f5e9; color: #2d8a4e; }
.digg-down { background: #fce4ec; color: #c62828; }

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .header-inner { height: auto; padding: 12px 16px; flex-direction: column; gap: 10px; }
  .main-nav { gap: 4px; width: 100%; justify-content: center; }
  .main-nav a { font-size: 13px; padding: 6px 10px; }
  .hero { padding: 40px 16px; }
  .hero h1 { font-size: 26px; }
  .hero p { font-size: 16px; }
  .content-area { flex-direction: column; margin: 16px auto; }
  .content-sidebar { width: 100%; }
  .main-box { padding: 20px; border-radius: 8px; }
  .main-box h1.page-title { font-size: 22px; }
  .article-header h1 { font-size: 22px; }
  .footer-inner { flex-direction: column; gap: 20px; }
}
@media (max-width: 480px) {
  .article-list .article-title { font-size: 17px; }
  .main-box { padding: 16px; }
  .article-content { font-size: 15px; }
}