.experiment-lab {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) 92px;
  gap: 14px;
  padding: 18px 20px 16px;
  overflow: hidden;
  background:
    radial-gradient(
      circle at 12% 12%,
      color-mix(in srgb, var(--figure-accent) 9%, transparent),
      transparent 28%
    ),
    linear-gradient(135deg, #fffdfa 0%, #f5f8fb 64%, #f1f5f7 100%);
}

.experiment-heading {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(470px, 0.85fr);
  align-items: center;
  gap: 22px;
}

.experiment-heading > div:first-child {
  min-width: 0;
}

.experiment-heading small {
  display: block;
  margin-bottom: 4px;
  color: var(--figure-accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.experiment-heading h1 {
  margin: 0;
  color: #283746;
  font-family: Georgia, "Songti SC", serif;
  font-size: 31px;
  line-height: 1.18;
  letter-spacing: 0;
}

.experiment-heading p {
  margin: 7px 0 0;
  color: #596a78;
  font-size: 16px;
  line-height: 1.55;
}

.experiment-guide {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.experiment-guide > div {
  min-width: 0;
  min-height: 64px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 10px 12px;
  border: 1px solid #d8e0e7;
  border-top: 3px solid var(--figure-accent);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
}

.experiment-guide b {
  color: var(--figure-accent);
  font-size: 14px;
}

.experiment-guide span {
  color: #5c6975;
  font-size: 13px;
  line-height: 1.35;
}

.experiment-main {
  position: relative;
  z-index: 2;
  min-height: 0;
  display: grid;
  gap: 12px;
}

.experiment-panel {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid #d8e0e6;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 28px rgba(48, 62, 78, 0.06);
}

.experiment-panel-heading {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 14px;
  border-bottom: 1px solid #e2e7eb;
}

.experiment-panel-heading > div {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.experiment-panel-heading b {
  color: #3d4a55;
  font-size: 16px;
}

.experiment-panel-heading small {
  color: #73818d;
  font-size: 13px;
}

.experiment-panel-heading > span {
  padding: 5px 9px;
  border-radius: 5px;
  background: var(--figure-accent-soft);
  color: var(--figure-accent);
  font-size: 13px;
  font-weight: 850;
  white-space: nowrap;
}

.experiment-controls {
  position: relative;
  z-index: 7;
  min-width: 0;
  display: grid;
  align-items: center;
  gap: 12px;
  padding: 11px 13px;
  border: 1px solid #d5dee5;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 10px 26px rgba(44, 57, 72, 0.07);
}

.experiment-range {
  min-width: 0;
  display: grid;
  gap: 9px;
}

.experiment-range > span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.experiment-range b,
.experiment-range output {
  font-size: 14px;
}

.experiment-range b {
  color: #4e5b66;
}

.experiment-range output {
  color: var(--figure-accent);
  font-weight: 900;
}

.experiment-range input {
  width: 100%;
  height: 6px;
  margin: 0;
  border-radius: 5px;
  outline: none;
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--figure-accent) 50%, white),
    var(--figure-accent)
  );
  appearance: none;
}

.experiment-range input::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  border: 4px solid white;
  border-radius: 50%;
  background: var(--figure-accent);
  box-shadow:
    0 0 0 1px var(--figure-accent),
    0 2px 7px color-mix(in srgb, var(--figure-accent) 30%, transparent);
  appearance: none;
}

.experiment-range input::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: 4px solid white;
  border-radius: 50%;
  background: var(--figure-accent);
}

.experiment-action {
  height: 50px;
  padding: 0 17px;
  border: 0;
  border-radius: 8px;
  background: var(--figure-accent);
  color: white;
  font-size: 15px;
  font-weight: 900;
  white-space: nowrap;
  box-shadow: 0 8px 18px
    color-mix(in srgb, var(--figure-accent) 25%, transparent);
}

.experiment-action.secondary {
  border: 1px solid #d1dae2;
  background: white;
  box-shadow: none;
  color: #5a6772;
}

.experiment-takeaway {
  position: absolute;
  z-index: 20;
  right: 32px;
  bottom: 122px;
  width: min(690px, 54%);
  min-height: 78px;
  display: grid;
  grid-template-columns: 92px 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 17px;
  border: 2px solid color-mix(in srgb, var(--figure-accent) 48%, white);
  border-radius: 11px;
  background: color-mix(in srgb, var(--figure-accent-soft) 82%, white);
  box-shadow: 0 18px 42px
    color-mix(in srgb, var(--figure-accent) 20%, transparent);
  opacity: 0;
  transform: translateY(15px);
  pointer-events: none;
  transition:
    opacity 380ms ease,
    transform 380ms ease;
}

.experiment-takeaway > span {
  color: var(--figure-accent);
  font-size: 17px;
  font-weight: 900;
  text-align: center;
}

.experiment-takeaway p {
  margin: 0;
  color: #44545f;
  font-size: 16px;
  line-height: 1.55;
}

.experiment-takeaway p b {
  color: var(--figure-accent);
}

body.show-experiment-conclusion .experiment-takeaway {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1450px), (max-height: 820px) {
  .experiment-lab {
    grid-template-rows: auto minmax(0, 1fr) 76px;
    gap: 9px;
    padding: 12px 14px 11px;
  }

  .experiment-heading {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.85fr);
    gap: 14px;
  }

  .experiment-heading small {
    font-size: 12px;
  }

  .experiment-heading h1 {
    font-size: 25px;
  }

  .experiment-heading p {
    margin-top: 4px;
    font-size: 13px;
  }

  .experiment-guide > div {
    min-height: 52px;
    padding: 7px 9px;
  }

  .experiment-guide b,
  .experiment-guide span {
    font-size: 12px;
  }

  .experiment-panel-heading {
    min-height: 41px;
    padding: 7px 10px;
  }

  .experiment-panel-heading b {
    font-size: 14px;
  }

  .experiment-panel-heading small,
  .experiment-panel-heading > span {
    font-size: 12px;
  }

  .experiment-controls {
    gap: 8px;
    padding: 8px 10px;
  }

  .experiment-range {
    gap: 6px;
  }

  .experiment-range b,
  .experiment-range output,
  .experiment-action {
    font-size: 12px;
  }

  .experiment-action {
    height: 42px;
    padding: 0 11px;
  }

  .experiment-takeaway {
    right: 24px;
    bottom: 96px;
    min-height: 64px;
    padding: 10px 13px;
  }

  .experiment-takeaway > span,
  .experiment-takeaway p {
    font-size: 13px;
  }
}