/* study999-category-bands-light-v4: gentle section labels, not full-card coloring. */
#app .study999-category-band,
#app #study999-my-custom-courses > h2 {
  display: flex;
  align-items: center;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0 0 10px;
  padding: 9px 12px;
  border: 0;
  border-left: 4px solid transparent;
  border-radius: 8px;
  box-shadow: none;
  text-shadow: none;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}
/* Chinese courses: pale sky-blue, clear blue left rule. */
#app .study999-category-band--zh {
  background: #edf5fc;
  border-left-color: #74a8d8;
  color: #355779;
}
/* English courses: pale mint, clear green left rule. */
#app .study999-category-band--en {
  background: #edf7f1;
  border-left-color: #76b69a;
  color: #34644e;
}
/* Private courses: pale lilac, clear violet left rule. */
#app .study999-category-band--custom,
#app #study999-my-custom-courses > h2 {
  background: #f5f0fa;
  border-left-color: #ae91cd;
  color: #66517d;
}
@media (max-width: 600px) {
  #app .study999-category-band,
  #app #study999-my-custom-courses > h2 {
    margin-bottom: 8px;
    padding: 8px 10px;
    border-radius: 7px;
    font-size: 1rem;
    line-height: 1.35;
  }
}
@media (prefers-contrast: more) {
  #app .study999-category-band--zh { border-left-color: #327bb7; color: #234b75; }
  #app .study999-category-band--en { border-left-color: #308e68; color: #255b43; }
  #app .study999-category-band--custom,
  #app #study999-my-custom-courses > h2 { border-left-color: #875ab5; color: #51376c; }
}