/**
 * 第四章第二 / 三部分 — 诗人散点图（原图 + 放大图）
 */

.poet-range-scatter {
  position: relative;
  z-index: 3;
  background: var(--color-bg);
}

.poet-range-scatter__bridge {
  position: relative;
  z-index: 2;
  padding: 8vh var(--space-md) 4vh;
  margin-bottom: 0;
  text-align: center;
}

.poet-range-scatter__bridge .reading-prose__inner {
  max-width: 34rem;
  margin: 0 auto;
}

.poet-range-scatter__bridge p {
  margin: 0 0 1.35rem;
  font-size: clamp(0.88rem, 1.55vw, 1.02rem);
  letter-spacing: 0.08em;
  line-height: 2.15;
  color: rgba(48, 48, 48, 0.78);
}

.poet-range-scatter__bridge p:last-child {
  margin-bottom: 0;
}

.poet-range-scatter__host {
  position: relative;
  z-index: 2;
  padding: 0;
  background: transparent;
}

.pr-scatter-story {
  position: relative;
}

.pr-scatter {
  width: 100%;
  margin: 0 auto;
}

.pr-scatter--overview {
  max-width: 58rem;
  padding: 0.5rem var(--space-md) 0;
}

.pr-scatter-closeup {
  position: relative;
  z-index: 1;
  padding: 0.5rem 0.75rem 2.75rem;
  overflow: visible;
  background: var(--color-bg);
}

.pr-scatter--closeup {
  max-width: min(78rem, 96vw);
  transform: scale(0.72);
  transform-origin: center top;
  opacity: 0.78;
}

.pr-scatter-closeup.is-zooming .pr-scatter--closeup,
.pr-scatter-closeup.is-zoomed .pr-scatter--closeup {
  transform: scale(1);
  opacity: 1;
  transition: transform 1.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.85s ease;
}

.pr-scatter__chart-shell {
  display: grid;
  gap: 0.85rem;
}

.pr-scatter__guide {
  position: relative;
  z-index: 1;
  background: var(--color-bg);
  text-align: center;
}

.pr-scatter__chart-scroll {
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
}

.pr-scatter--closeup .pr-scatter__chart-scroll {
  overflow: visible;
}

.pr-scatter__chart-wrap {
  position: relative;
  min-width: min(100%, 640px);
  margin: 0 auto;
  overflow: visible;
}

.pr-scatter--closeup .pr-scatter__chart-wrap {
  min-width: min(100%, 720px);
  padding-bottom: 0.35rem;
}

.pr-scatter--closeup .pr-scatter__svg {
  overflow: visible;
}

.pr-scatter__svg {
  display: block;
  width: 100%;
  height: auto;
  touch-action: pan-x pan-y;
  transform-origin: center center;
}

.pr-scatter__camera {
  transform-box: fill-box;
  transform-origin: center;
}

.pr-scatter__labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 5;
}

.pr-scatter__focus-label {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.08rem;
  transform: translate(-50%, calc(-100% - 2px));
  opacity: 0;
  padding: 0;
  text-align: center;
  white-space: nowrap;
  pointer-events: none;
  line-height: 1.15;
}

.pr-scatter__focus-label strong {
  display: block;
  font-family: var(--font-serif);
  font-size: var(--font-size-sm);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--color-text);
  line-height: 1.15;
}

.pr-scatter__focus-label span {
  display: block;
  margin-top: 0;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  line-height: 1.15;
}

.pr-scatter__focus-label.is-active strong {
  font-weight: 600;
}

.pr-scatter__grid {
  stroke: rgba(36, 40, 44, 0.06);
  stroke-width: 1;
}

.pr-scatter__axis {
  stroke: rgba(36, 40, 44, 0.22);
  stroke-width: 1;
}

.pr-scatter__axis-label {
  fill: rgba(36, 40, 44, 0.62);
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-anchor: middle;
}

.pr-scatter__tick {
  fill: rgba(36, 40, 44, 0.38);
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-anchor: middle;
}

.pr-scatter__trend {
  stroke: rgba(36, 40, 44, 0.14);
  stroke-width: 1.25;
  stroke-dasharray: 5 6;
  pointer-events: none;
}

.pr-scatter__dot {
  stroke: none;
  cursor: pointer;
  transition: fill 0.35s ease, opacity 0.45s ease;
}

.pr-scatter__dot.is-focus-poet {
  stroke: rgba(236, 236, 236, 0.9);
  stroke-width: 1.25;
}

.pr-scatter.is-revealed .pr-scatter__dot {
  animation: pr-scatter-drop 0.5s ease backwards;
}

.pr-scatter--closeup.is-revealed .pr-scatter__dot {
  animation: none;
}

@keyframes pr-scatter-drop {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.pr-scatter__dot.is-dim {
  pointer-events: auto;
}

.pr-scatter__guide-inner {
  max-width: 36rem;
  margin: 0 auto;
  padding: 0.65rem 0.5rem 0;
  text-align: center;
}

.pr-scatter__guide-tone,
.pr-scatter__guide-pos,
.pr-scatter__guide-hint {
  margin: 0 0 0.65rem;
  font-size: var(--font-size-xs);
  letter-spacing: 0.06em;
  line-height: var(--line-height-loose);
  color: var(--color-text-muted);
}

.pr-scatter__guide-hint {
  margin-bottom: 0;
  color: var(--color-text-faint);
}

.pr-scatter__swatch {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  vertical-align: 0.05em;
  margin: 0 0.2rem;
}

.pr-scatter__swatch--light {
  background: rgba(28, 32, 36, 0.22);
}

.pr-scatter__swatch--dark {
  background: rgba(28, 32, 36, 0.78);
}

.pr-scatter__swatch-sep {
  margin: 0 0.35rem;
  opacity: 0.45;
}

.pr-scatter__tooltip {
  position: absolute;
  z-index: 6;
  left: 0;
  top: 0;
  padding: 0.7rem 0.95rem 0.75rem;
  font-size: var(--font-size-xs);
  letter-spacing: 0.05em;
  line-height: 1.55;
  pointer-events: none;
  white-space: nowrap;
}

.pr-scatter__tooltip strong {
  display: block;
  font-size: var(--font-size-sm);
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
}

.pr-scatter__tooltip span {
  display: block;
}

.pr-scatter__detail {
  max-width: 20rem;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  font-size: var(--font-size-xs);
  letter-spacing: 0.05em;
  line-height: 1.6;
}

.pr-scatter__detail strong {
  display: block;
  font-size: var(--font-size-sm);
  letter-spacing: 0.1em;
  margin-bottom: 0.35rem;
}

.pr-scatter__detail span {
  display: block;
}

.pr-scatter__copy,
.pr-scatter__focus-lead,
.pr-scatter__focus-copy {
  position: relative;
  z-index: 1;
  min-height: 0;
  overflow: visible;
  text-align: center;
  background: var(--color-bg);
}

.pr-scatter__copy {
  padding: 2.75rem var(--space-md) 3.5rem;
}

.pr-scatter__focus-lead {
  padding: 2rem var(--space-md) 1.25rem;
}

.pr-scatter__focus-copy {
  z-index: 3;
  padding: 3.25rem var(--space-md) 9rem;
  background: linear-gradient(
    180deg,
    var(--color-bg) 0%,
    var(--color-bg) 28%,
    rgba(236, 236, 236, 0.88) 48%,
    rgba(230, 224, 214, 0.55) 68%,
    rgba(220, 208, 188, 0.22) 84%,
    transparent 100%
  );
}

.pr-scatter__copy .reading-prose__inner,
.pr-scatter__focus-lead .reading-prose__inner,
.pr-scatter__focus-copy .reading-prose__inner {
  max-width: 34rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.45em;
}

.pr-scatter__copy p,
.pr-scatter__focus-lead p,
.pr-scatter__focus-copy p {
  margin: 0;
  font-size: clamp(0.88rem, 1.55vw, 1.02rem);
  letter-spacing: 0.08em;
  line-height: 2.15;
  color: rgba(48, 48, 48, 0.78);
}

.pr-scatter__copy p strong,
.pr-scatter__focus-copy p strong {
  font-weight: 600;
  color: var(--color-text);
}

.pr-scatter__closing {
  font-family: var(--font-serif);
  letter-spacing: 0.08em;
  color: var(--color-text);
}

.pr-scatter__focus-kicker {
  font-family: var(--font-serif);
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin-bottom: 0;
}

.pr-scatter__coda {
  margin-top: 0.4rem;
}

.pr-scatter__coda--end {
  margin-top: 0.85rem;
  font-family: var(--font-serif);
  color: var(--color-text);
}

.pr-scatter__focus-end {
  margin-top: 0.6rem;
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  letter-spacing: 0.1em;
  color: var(--color-text) !important;
}

.pr-scatter__trend-note {
  font-size: var(--font-size-xs);
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
}

@media (max-width: 720px) {
  .pr-scatter--overview,
  .pr-scatter-closeup {
    padding-inline: var(--space-sm);
  }

  .pr-scatter__chart-wrap {
    min-width: 520px;
  }

  .pr-scatter__tooltip {
    white-space: normal;
    max-width: 12rem;
  }

  .pr-scatter__focus-label {
    white-space: normal;
    max-width: 7.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pr-scatter.is-revealed .pr-scatter__dot {
    animation: none;
  }

  .pr-scatter--closeup,
  .pr-scatter-closeup.is-zooming .pr-scatter--closeup,
  .pr-scatter-closeup.is-zoomed .pr-scatter--closeup {
    transform: none;
    opacity: 1;
    transition: none;
  }

  .pr-scatter__dot {
    transition: none;
  }
}