:root {
  --slide-background: #f7f5ef;
  --slide-stage-background: #e8e8e4;
  --slide-surface-raised: #fffdf8;
  --slide-surface-muted: #eef2f1;
  --slide-surface-translucent: rgba(255, 253, 248, .88);
  --slide-surface-translucent-soft: rgba(255, 253, 248, .72);
  --slide-ink: #182126;
  --slide-ink-soft: #526068;
  --slide-primary: #244d63;
  --slide-primary-soft: #e5edf0;
  --slide-auxiliary: #b95d3b;
  --slide-auxiliary-soft: #f4e5dc;
  --slide-line: #b9c2c3;
  --slide-line-soft: #d3d8d5;
  --slide-breadcrumb-muted: #7b878c;
  --slide-progress-ink: #67747a;
  --slide-footer-ink: #67747a;
  --slide-progress-track: #cfd5d3;
  --slide-cover-description-ink: #526068;
  --slide-cover-meta-ink: #68747a;
  --slide-on-primary: #fff;
  --slide-card-shadow: rgba(24, 33, 38, .16);
  --slide-navigation-shadow: rgba(36, 77, 99, .18);
  --slide-code-active-line: #f0cfc0;
  --slide-code-ink: #182126;
  --slide-code-meta-ink: #67747a;
  --slide-code-keyword: #244d63;
  --slide-code-literal: #b95d3b;
  --slide-overlay-background: rgba(24, 33, 38, .82);
  --slide-overlay-line: rgba(255, 253, 248, .72);
  --slide-overlay-shadow: rgba(0, 0, 0, .36);
  --slide-title-font: "Course Source Han Serif", "Source Han Serif CN", "Source Han Serif SC", "Songti SC", STSong, SimSun, serif;
  --slide-body-font: "Course Source Han Sans", "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

.content-table th { background: var(--slide-primary); color: var(--slide-on-primary); }