:root {
  --ink: #2c2620;
  --ink-soft: #6b6157;
  --paper: #fbf8f3;
  --paper-card: #ffffff;
  --brand: #7c5c3f;
  --brand-deep: #5f4630;
  --brand-soft: #f0e8dd;
  --line: #e7dfd3;
  --accent: #b8845a;
  --radius: 14px;
  --shadow: 0 2px 16px rgba(70, 50, 30, .07);
  --maxw: 760px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  font-size: 17px;
}
a { color: var(--brand-deep); text-decoration: none; }
a:hover { color: var(--accent); }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: rgba(251, 248, 243, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #fff; display: grid; place-items: center;
  font-size: 20px; font-weight: 600;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 17px; color: var(--ink); }
.brand-text em { font-style: normal; font-size: 12px; color: var(--ink-soft); letter-spacing: 1px; }
.site-nav { display: flex; gap: 22px; font-size: 15px; }
.site-nav a { color: var(--ink-soft); padding: 4px 2px; }
.site-nav a:hover, .site-nav a.active { color: var(--brand-deep); }
.site-nav a.active { border-bottom: 2px solid var(--accent); }

/* Hero */
.hero { text-align: center; padding: 72px 0 56px; }
.hero h1 { font-size: 34px; margin: 0 0 18px; letter-spacing: 1px; line-height: 1.35; }
.hero-sub { color: var(--ink-soft); font-size: 17px; max-width: 580px; margin: 0 auto 30px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 11px 28px; border-radius: 999px; font-size: 15px; transition: all .2s; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-deep); color: #fff; }
.btn-ghost { border: 1px solid var(--brand); color: var(--brand-deep); }
.btn-ghost:hover { background: var(--brand-soft); color: var(--brand-deep); }

/* Section */
.section-title, .page-title {
  font-size: 22px; margin: 8px 0 24px; padding-bottom: 12px;
  border-bottom: 2px solid var(--brand); display: inline-block;
}
.post-list { padding-bottom: 40px; }

/* Post card */
.post-card {
  background: var(--paper-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 26px; margin-bottom: 20px;
  box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s;
}
.post-card:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(70, 50, 30, .11); }
.post-card-meta { font-size: 13px; color: var(--ink-soft); display: flex; align-items: center; gap: 6px; }
.post-card-meta .dot { color: var(--line); }
.post-card-title { font-size: 21px; margin: 10px 0 8px; line-height: 1.4; }
.post-card-title a { color: var(--ink); }
.post-card-title a:hover { color: var(--brand-deep); }
.post-card-summary { color: var(--ink-soft); font-size: 15.5px; margin: 0 0 12px; }
.read-more { font-size: 14px; color: var(--brand); }

/* Post detail */
.post-detail { padding: 44px 0 20px; }
.post-header h1 { font-size: 30px; line-height: 1.35; margin: 12px 0 14px; }
.lead { color: var(--ink-soft); font-size: 17px; border-left: 3px solid var(--accent); padding-left: 14px; margin: 0 0 28px; }
.post-body { font-size: 17px; }
.post-body h2 { font-size: 22px; margin: 38px 0 14px; padding-top: 8px; }
.post-body h3 { font-size: 18px; margin: 28px 0 10px; }
.post-body p { margin: 0 0 18px; }
.post-body ul, .post-body ol { padding-left: 24px; margin: 0 0 18px; }
.post-body li { margin-bottom: 8px; }
.post-body blockquote {
  margin: 22px 0; padding: 14px 20px; background: var(--brand-soft);
  border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0;
  color: var(--brand-deep);
}
.post-body blockquote p:last-child { margin-bottom: 0; }
.post-body strong { color: var(--brand-deep); }
.post-body table { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 15px; display: block; overflow-x: auto; }
.post-body th, .post-body td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.post-body th { background: var(--brand-soft); font-weight: 600; }
.post-body hr { border: none; border-top: 1px solid var(--line); margin: 34px 0; }
.post-tags { margin: 30px 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tag { font-size: 13px; color: var(--ink-soft); background: var(--brand-soft); padding: 4px 12px; border-radius: 999px; }
.post-pager { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--line); padding-top: 22px; font-size: 14px; margin-bottom: 30px; }
.pager-newer { text-align: right; }
.pager-older, .pager-newer { color: var(--ink-soft); max-width: 48%; }
.pager-older:hover, .pager-newer:hover { color: var(--brand-deep); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: #f5efe6; margin-top: 30px; padding: 34px 0; }
.site-footer .disclaimer { font-size: 13.5px; color: var(--ink-soft); margin: 0 0 12px; }
.site-footer .meta { font-size: 13px; color: var(--ink-soft); margin: 0; }
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--brand-deep); }

@media (max-width: 600px) {
  body { font-size: 16px; }
  .header-inner { height: 58px; }
  .brand-text em { display: none; }
  .site-nav { gap: 14px; font-size: 14px; }
  .hero { padding: 48px 0 36px; }
  .hero h1 { font-size: 26px; }
  .post-header h1 { font-size: 24px; }
  .post-card { padding: 20px; }
}