/* 人教版初中教材词汇 · Word Park 主题（仿小学课件结构，适配初中视觉） */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

:root {
  --pep-teal: #0d9488;
  --pep-teal-dark: #0f766e;
  --pep-teal-deep: #115e59;
  --pep-cream: #f0fdfa;
  --pep-cream-deep: #ccfbf1;
  --pep-paper: #ffffff;
  --pep-coral: #f97316;
  --pep-coral-dark: #ea580c;
  --pep-amber: #fbbf24;
  --pep-sky: #bae6fd;
  --pep-sky-deep: #0284c7;
  --unit-1: #0d9488;
  --unit-2: #2563eb;
  --unit-3: #7c3aed;
  --unit-4: #ea580c;
  --unit-5: #059669;
  --unit-6: #db2777;
  --unit-7: #0891b2;
  --unit-8: #4f46e5;
  --bg: var(--pep-cream);
  --cream: var(--pep-paper);
  --text: #134e4a;
  --text-muted: #5b7c78;
  --primary: var(--pep-teal);
  --primary-dark: var(--pep-teal-dark);
  --primary-soft: #ccfbf1;
  --orange: var(--pep-coral);
  --orange-dark: var(--pep-coral-dark);
  --yellow: var(--pep-amber);
  --blue: var(--pep-sky-deep);
  --blue-dark: #0369a1;
  --green: var(--pep-teal);
  --green-dark: var(--pep-teal-dark);
  --pink: #db2777;
  --purple: #7c3aed;
  --card-bg: var(--pep-paper);
  --glass-border: 2px solid rgba(255, 255, 255, 0.85);
  --shadow: 0 4px 0 rgba(13, 148, 136, 0.08), 0 12px 28px rgba(19, 78, 74, 0.08);
  --shadow-hover: 0 6px 0 rgba(13, 148, 136, 0.1), 0 20px 40px rgba(19, 78, 74, 0.12);
  --shadow-btn: 0 4px 0 rgba(15, 118, 110, 0.22);
  --radius: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --font: 'DM Sans', 'Noto Sans SC', system-ui, sans-serif;
  --font-cn: 'Noto Sans SC', sans-serif;
  --ease: cubic-bezier(0.34, 1.4, 0.64, 1);

  /* 兼容小学课件变量名，便于复用 common.css */
  --fltrp-green: var(--pep-teal);
  --fltrp-green-dark: var(--pep-teal-dark);
  --fltrp-green-deep: var(--pep-teal-deep);
  --fltrp-cream: var(--pep-cream);
  --fltrp-cream-deep: var(--pep-cream-deep);
  --fltrp-paper: var(--pep-paper);
  --fltrp-orange: var(--pep-coral);
  --fltrp-orange-dark: var(--pep-coral-dark);
  --fltrp-yellow: var(--pep-amber);
  --fltrp-sky: var(--pep-sky);
  --fltrp-sky-deep: var(--pep-sky-deep);
}

.fltrp-triangles,
.pep-triangles {
  background-color: var(--pep-teal);
  background-image:
    linear-gradient(30deg, rgba(255,255,255,0.09) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.09) 87.5%, rgba(255,255,255,0.09)),
    linear-gradient(150deg, rgba(255,255,255,0.09) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.09) 87.5%, rgba(255,255,255,0.09));
  background-size: 28px 48px;
}

.sticker-title {
  font-family: var(--font);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  text-shadow: 0 4px 0 rgba(15, 118, 110, 0.35);
}

.ribbon-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px 8px 14px;
  background: linear-gradient(90deg, var(--pep-coral), #fb923c);
  color: #fff;
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: 0 14px 14px 0;
  box-shadow: 0 3px 0 rgba(234, 88, 12, 0.35);
}

.ipa-badge {
  display: inline-block;
  margin: 8px auto;
  padding: 6px 14px;
  background: #ecfeff;
  border: 1.5px solid #99f6e4;
  border-radius: 999px;
  font-family: 'DM Sans', ui-monospace, monospace;
  font-size: 1.05rem;
  color: #0f766e;
  letter-spacing: 0.03em;
}

.word-extra {
  margin-top: 14px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #f0fdfa, #fff7ed);
  border-radius: 14px;
  border: 1px solid #99f6e4;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.word-extra h4 {
  margin: 0 0 6px;
  color: var(--pep-teal-dark);
  font-size: 0.88rem;
}

.word-extra p { margin: 0 0 10px; }
.word-extra p:last-child { margin-bottom: 0; }

.dual-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.dual-images .word-image {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: 14px;
}

@media (max-width: 640px) {
  .dual-images { grid-template-columns: 1fr; }
}