:root {
  --ym-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --ym-text: #111827;
  --ym-muted: #6b7280;
  --ym-border: #e5e7eb;
  --ym-bg: #ffffff;
  --ym-max: 720px;
}

body.yejin-mobile {
  margin: 0;
  font-family: var(--ym-font);
  color: var(--ym-text);
  background: var(--ym-bg);
}

.ym-container {
  max-width: var(--ym-max);
  margin: 0 auto;
  padding: 12px 14px;
}

.site-header {
  border-bottom: 1px solid var(--ym-border);
  background: #fff;
}

.site-header .brand a {
  display: inline-block;
  padding: 12px 14px;
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

.site-main {
  padding: 10px 0 24px;
}

.ym-article-title {
  margin: 0 0 6px;
  font-size: 20px;
  line-height: 1.25;
}

.ym-meta {
  font-size: 12px;
  color: var(--ym-muted);
  margin-bottom: 12px;
}

.ym-cover {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--ym-border);
  margin: 10px 0 14px;
}

.ym-content {
  font-size: 16px;
  line-height: 1.65;
}

.ym-content img {
  max-width: 100%;
  height: auto;
}

.site-footer {
  border-top: 1px solid var(--ym-border);
  color: var(--ym-muted);
  font-size: 12px;
  background-color: #f7f7f7;
  padding-bottom: 4rem;
}

.site-footer .footer-inner {
  padding: 12px 14px;
}