/* Modern-prose skin: a rain-washed walk journal for lesson 5. */
:root {
  --lesson-bg: #e3ece8;
  --lesson-paper: #fffdf7;
  --lesson-ink: #203c35;
  --lesson-muted: #5e746d;
  --lesson-accent: #a66a2c;
  --lesson-accent-soft: #f4e6bd;
  --lesson-gold: #d49a2f;
  --lesson-deep: #214d42;
  --lesson-line: rgba(32, 60, 53, .18);
}

body[data-visual-system="rainy-golden-road"] {
  background:
    radial-gradient(circle at 86% 6%, rgba(212, 154, 47, .18), transparent 24rem),
    radial-gradient(circle at 8% 28%, rgba(101, 163, 160, .18), transparent 28rem),
    linear-gradient(180deg, #f4f7f0 0, var(--lesson-bg) 48rem);
}

body[data-visual-system="rainy-golden-road"] .lesson-topbar {
  background: rgba(28, 70, 59, .97);
}

body[data-visual-system="rainy-golden-road"] .lesson-hero {
  border-radius: 30px 30px 104px 30px;
  background:
    linear-gradient(110deg, rgba(255, 253, 247, .97), rgba(255, 253, 247, .86)),
    var(--lesson-paper);
}

body[data-visual-system="rainy-golden-road"] .hero-copy {
  position: relative;
}

body[data-visual-system="rainy-golden-road"] .hero-copy::before {
  content: "雨后发现册  /  05";
  position: absolute;
  top: 18px;
  right: 30px;
  color: rgba(33, 77, 66, .36);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .16em;
}

body[data-visual-system="rainy-golden-road"] .hero-copy h1 {
  max-width: 9em;
  color: var(--lesson-deep);
  font-size: clamp(42px, 6.2vw, 76px);
  letter-spacing: .03em;
}

body[data-visual-system="rainy-golden-road"] .lesson-mark,
body[data-visual-system="rainy-golden-road"] .section-kicker {
  color: #8a5a24;
}

.prose-author {
  margin: -8px 0 18px;
  color: var(--lesson-muted);
  font-family: var(--lesson-serif);
  font-size: 18px;
}

body[data-visual-system="rainy-golden-road"] .hero-visual {
  background: #b9d1c9;
}

body[data-visual-system="rainy-golden-road"] .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(20, 68, 58, .03), rgba(215, 159, 47, .18));
  mix-blend-mode: multiply;
}

body[data-visual-system="rainy-golden-road"] .hero-visual figcaption {
  background: rgba(33, 77, 66, .9);
}

body[data-visual-system="rainy-golden-road"] .reader-dock {
  background: rgba(30, 71, 60, .97);
  box-shadow: 0 18px 42px rgba(32, 60, 53, .22);
}

body[data-visual-system="rainy-golden-road"] .lesson-section {
  background: rgba(255, 253, 247, .92);
  border-radius: 26px 26px 62px 26px;
}

.road-original-card {
  padding: clamp(22px, 4vw, 46px) clamp(22px, 5vw, 58px);
  background:
    linear-gradient(90deg, transparent 0 2.8rem, rgba(166, 106, 44, .13) 2.8rem 2.92rem, transparent 2.92rem),
    repeating-linear-gradient(0deg, transparent 0 3.34rem, rgba(32, 60, 53, .08) 3.34rem 3.38rem),
    #fffefa;
}

.road-original-card [data-testid="textbook-original"] {
  display: grid;
  gap: 22px;
  font-family: var(--lesson-serif);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 600;
  letter-spacing: .035em;
  line-height: 1.95;
}

.prose-paragraph {
  position: relative;
  margin: 0;
  padding-left: 2.15rem;
}

.prose-paragraph::before {
  content: attr(data-paragraph-id);
  position: absolute;
  top: .25rem;
  left: 0;
  color: var(--lesson-accent);
  font-family: var(--lesson-sans);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}

.road-original-card [data-testid="textbook-original"]::after {
  content: "教材原文 · 七段";
  display: block;
  margin-top: 4px;
  color: rgba(33, 77, 66, .52);
  font-family: var(--lesson-sans);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .16em;
  text-align: right;
}

.road-pause-guide {
  background: linear-gradient(90deg, #f5e7be, #f8f1da);
  border-left-color: var(--lesson-gold);
}

.segment-road {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 28px;
}

.segment-road .segment-button {
  min-height: 60px;
  padding: 10px 12px;
  color: var(--lesson-deep);
  background: #f4f0df;
  border: 1px solid rgba(166, 106, 44, .28);
  border-radius: 14px 14px 28px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 850;
  line-height: 1.35;
  text-align: left;
}

.segment-road .segment-button:hover,
.segment-road .segment-button[aria-pressed="true"] {
  color: #fffdf7;
  background: var(--lesson-deep);
  border-color: var(--lesson-deep);
}

.segment-road .segment-button:disabled {
  opacity: .55;
  cursor: not-allowed;
}

.pronunciation-grid.road-pronunciations {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.road-pronunciations .sound-card {
  background: #edf3e9;
}

.road-pronunciations .sound-card span {
  min-height: 2.5em;
}

.road-notes {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.road-notes .word-note:nth-child(odd) {
  background: #f7efd7;
}

.language-lab {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 18px;
  margin-top: 22px;
}

.lab-card {
  padding: 22px;
  background: #f0f5ef;
  border: 1px solid rgba(33, 77, 66, .13);
  border-radius: 18px 18px 42px 18px;
}

.lab-card h3 {
  margin: 0 0 12px;
  color: var(--lesson-deep);
  font-family: var(--lesson-serif);
  font-size: 22px;
}

.word-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.word-ribbon li {
  padding: 7px 10px;
  color: #7a521f;
  background: #f7e7ae;
  border-radius: 999px;
  font-family: var(--lesson-serif);
  font-size: 18px;
}

.metaphor-ladder {
  display: grid;
  gap: 10px;
  margin: 0;
}

.metaphor-ladder div {
  display: grid;
  grid-template-columns: minmax(110px, .42fr) minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(33, 77, 66, .2);
}

.metaphor-ladder dt {
  color: var(--lesson-accent);
  font-family: var(--lesson-serif);
  font-size: 20px;
  font-weight: 800;
}

.metaphor-ladder dd {
  margin: 0;
  color: var(--lesson-muted);
  font-size: 14px;
}

.road-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.road-stage {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #eef4ed;
  border: 1px solid rgba(33, 77, 66, .16);
  border-radius: 18px 18px 40px 18px;
  box-shadow: 0 10px 24px rgba(33, 77, 66, .08);
}

.road-stage img {
  width: 100%;
  aspect-ratio: 9 / 16;
  display: block;
  object-fit: contain;
  background: #cfe0d9;
}

.road-stage figcaption {
  min-height: 92px;
  padding: 13px 14px 16px;
  color: #526961;
  font-size: 13px;
  line-height: 1.65;
}

.road-stage figcaption b {
  display: block;
  margin-bottom: 4px;
  color: var(--lesson-deep);
  font-family: var(--lesson-serif);
  font-size: 17px;
}

.metaphor-warning {
  margin: 18px 0 0;
  padding: 14px 16px;
  color: #715022;
  background: #fff3c9;
  border: 1px solid rgba(166, 106, 44, .25);
  border-radius: 12px;
  font-size: 14px;
}

.task-section {
  background: linear-gradient(135deg, rgba(255, 253, 247, .97), rgba(235, 244, 236, .94));
}

.task-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.task-list li {
  position: relative;
  padding: 15px 18px 15px 48px;
  background: rgba(255, 255, 255, .65);
  border: 1px solid rgba(33, 77, 66, .12);
  border-radius: 14px;
}

.task-list li::before {
  content: "✓";
  position: absolute;
  left: 17px;
  top: 12px;
  color: var(--lesson-accent);
  font-weight: 900;
}

body[data-visual-system="rainy-golden-road"] .recite-panel {
  background:
    radial-gradient(circle at 88% 12%, rgba(212, 154, 47, .2), transparent 23rem),
    linear-gradient(135deg, #214d42, #2f6657);
}

.road-video video {
  object-fit: contain;
}

body[data-visual-system="rainy-golden-road"] .lesson-footer {
  border-color: rgba(33, 77, 66, .22);
}

@media (max-width: 900px) {
  .segment-road,
  .road-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pronunciation-grid.road-pronunciations {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .road-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  body[data-visual-system="rainy-golden-road"] .hero-copy::before {
    top: 12px;
    right: 18px;
  }

  .language-lab {
    grid-template-columns: 1fr;
  }

  .segment-road,
  .road-map {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .segment-road .segment-button {
    min-height: 56px;
    padding-inline: 10px;
  }

  .road-original-card [data-testid="textbook-original"] {
    gap: 18px;
    font-size: 20px;
  }

  .prose-paragraph {
    padding-left: 1.85rem;
  }
}

@media (max-width: 420px) {
  .road-map {
    grid-template-columns: 1fr;
  }

  .road-stage img {
    max-height: 520px;
  }

  .pronunciation-grid.road-pronunciations,
  .road-notes {
    grid-template-columns: 1fr 1fr;
  }

  .metaphor-ladder div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}