/*
Theme Name: Dongdong Notebook
Theme URI: https://20150126.com/
Author: Dongdong Team
Description: Clean reading theme for the blog.
Version: 1.0.0
Text Domain: dongdong-notebook
*/

:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2a37;
  --muted: #5b6675;
  --line: #dbe3ef;
  --accent: #0f766e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1000px 480px at 10% -20%, #dfefff, transparent 60%), var(--bg);
  color: var(--text);
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  line-height: 1.75;
}
a { color: #0b5cad; text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.site-title {
  font-size: 1.3rem;
  font-weight: 700;
}
.site-desc {
  color: var(--muted);
  font-size: 0.92rem;
}
.wrap {
  max-width: 1080px;
  margin: 22px auto;
  padding: 0 16px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 18px;
}
.main-col { min-width: 0; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: 0 10px 22px rgba(20, 31, 45, 0.05);
}
.entry-title {
  margin: 0 0 8px;
  font-size: 1.35rem;
  line-height: 1.4;
}
.entry-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 10px;
}
.entry-content p { margin: 0 0 10px; }
.entry-content ul, .entry-content ol { margin: 8px 0 12px 0; padding-left: 22px; }
.sidebar .panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
}
.panel h3 { margin: 0 0 8px; font-size: 1rem; }
.footer {
  max-width: 1080px;
  margin: 0 auto 24px;
  padding: 0 16px;
  color: var(--muted);
  font-size: 0.9rem;
}
.tag-note {
  display: inline-block;
  margin-top: 8px;
  border: 1px solid #b8e2da;
  background: #ecfaf7;
  color: #115e59;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
}
@media (max-width: 900px) {
  .wrap { grid-template-columns: 1fr; }
}