:root {
  --exercise-stage-background: #f4f7fa;
  --exercise-ink: #17223b;
  --exercise-muted: #62708a;
  --exercise-line: #d8e0eb;
  --exercise-surface: #fff;
  --exercise-soft: #eef6fb;
  --exercise-primary: #176b87;
  --exercise-primary-dark: #0d536c;
  --exercise-good: #177245;
  --exercise-bad: #a33a32;
  --exercise-on-primary: #fff;
  --exercise-card-shadow: rgba(23, 34, 59, .08);
  --exercise-border-width: 1px;
  --exercise-card-border-top-width: 6px;
  --exercise-card-elevation: 0 18px 55px;
  --exercise-radius: 6px;
  --exercise-title-font: "Course Source Han Sans", "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --exercise-body-font: "Course Source Han Sans", "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}