/* ============================================================
   认识汉字 Recognize Chinese Characters
   链接于 style.css 之后，仅包含本页专用样式
   ============================================================ */

/* ---------- 学习路径三卡：象形 / 偏旁 / 会意 ---------- */
.idea-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.idea-card {
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 18px;
  box-shadow: var(--shadow);
}
.idea-card .idea-icon { font-size: 2rem; line-height: 1; }
.idea-card h3 { color: var(--red-dark); font-size: 1.05rem; margin: 8px 0 6px; }
.idea-card p { font-size: 0.92rem; color: var(--ink); }
.idea-card .idea-demo {
  margin-top: 10px;
  font-size: 1.15rem;
  color: var(--red);
  font-weight: 600;
  letter-spacing: 2px;
}

/* ---------- 象形字：看图识字 ---------- */
.picto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
}
.picto-card {
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 10px 12px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.12s, border-color 0.12s, box-shadow 0.12s;
}
.picto-card:hover { transform: translateY(-2px); border-color: var(--red); box-shadow: var(--shadow); }
.picto-card .picto-emoji { display: block; font-size: 2.1rem; line-height: 1.2; }
.picto-card .picto-arrow { display: block; color: var(--gold); font-size: 0.9rem; margin: 2px 0; }
.picto-card .picto-char {
  display: block;
  font-family: "KaiTi", "STKaiti", "楷体", "Kaiti SC", serif;
  font-size: 2.4rem;
  color: var(--red-dark);
  line-height: 1.2;
}
.picto-card .picto-py { display: block; color: var(--red); font-weight: 600; font-size: 0.95rem; margin-top: 2px; }
.picto-card .picto-en { display: block; color: var(--muted); font-size: 0.85rem; }

/* ---------- 偏旁部首 ---------- */
.rad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}
.rad-card {
  background: var(--card);
  border: 1.5px solid var(--line);
  border-left: 5px solid var(--gold);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.rad-glyph {
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: #fdf1dc;
  color: var(--red-dark);
  font-family: "KaiTi", "STKaiti", "楷体", serif;
  font-size: 1.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.rad-glyph:hover { background: var(--gold); color: #fff; }
.rad-info h3 { font-size: 1rem; color: var(--red-dark); }
.rad-info .rad-en { color: var(--muted); font-size: 0.82rem; margin-bottom: 6px; }
.rad-info .rad-tip { font-size: 0.85rem; line-height: 1.6; margin-bottom: 8px; }
.rad-examples { display: flex; flex-wrap: wrap; gap: 6px; }
.rad-ex {
  font-family: inherit;
  border: 1.5px solid var(--line);
  background: #fffdf8;
  border-radius: 8px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 0.92rem;
  color: var(--ink);
  transition: border-color 0.12s, background 0.12s;
  display: inline-flex;
  align-items: baseline;
  white-space: nowrap;
}
.rad-ex b { color: var(--red-dark); font-size: 1.05rem; margin-right: 4px; }
.rad-ex small { color: var(--muted); }
.rad-ex:hover { border-color: var(--red); background: #fdeeee; }

/* ---------- 会意字：拼合 ---------- */
.combo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.combo-card {
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
}
.combo-eq {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-bottom: 8px;
}
.combo-part, .combo-result {
  font-family: "KaiTi", "STKaiti", "楷体", serif;
  color: var(--ink);
  background: #faf6ef;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  cursor: pointer;
}
.combo-result {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
  font-size: 2rem;
}
.combo-op { color: var(--gold); font-weight: 700; font-size: 1.1rem; }
.combo-card h3 { font-size: 0.98rem; color: var(--red-dark); }
.combo-card .combo-py { color: var(--red); font-size: 0.9rem; font-weight: 600; }
.combo-card .combo-en { color: var(--muted); font-size: 0.85rem; }
.combo-card p { font-size: 0.84rem; margin-top: 6px; line-height: 1.6; }

/* ---------- 高频字卡 ---------- */
.hz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
}
.hz-card {
  position: relative;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 6px 10px;
  cursor: pointer;
  text-align: center;
  font-family: inherit;
  transition: transform 0.12s, border-color 0.12s, box-shadow 0.12s;
}
.hz-card:hover { transform: translateY(-2px); border-color: var(--red); box-shadow: var(--shadow); }
.hz-card .hz-char {
  display: block;
  font-family: "KaiTi", "STKaiti", "楷体", "Kaiti SC", serif;
  font-size: 2.3rem;
  color: var(--red-dark);
  line-height: 1.25;
}
.hz-card .hz-py { display: block; color: var(--red); font-weight: 600; font-size: 0.88rem; }
.hz-card .hz-en { display: block; color: var(--muted); font-size: 0.78rem; }
.hz-card.learned { border-color: var(--green); background: #f0f9f3; }
.hz-card.learned::after {
  content: "✓";
  position: absolute;
  top: 4px;
  right: 7px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
}
.hz-card.learned .hz-char { color: var(--green); }

/* ---------- 字卡详情弹层 ---------- */
.hz-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(50, 48, 45, 0.45);
  padding: 20px;
  overflow-y: auto;
}
.hz-overlay.show { display: flex; align-items: flex-start; justify-content: center; }
.hz-detail {
  position: relative;
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
  max-width: 560px;
  width: 100%;
  margin: auto;
  padding: 28px 26px;
}
.hz-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  font-size: 1.7rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
}
.hz-close:hover { color: var(--red); }
.hz-detail-main { display: flex; gap: 22px; align-items: flex-start; }
.hz-big {
  flex: 0 0 130px;
  width: 130px;
  height: 130px;
  border-radius: 18px;
  border: 2px solid var(--line);
  background: #fffaf0;
  color: var(--red-dark);
  font-family: "KaiTi", "STKaiti", "楷体", serif;
  font-size: 5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.12s, background 0.12s;
}
.hz-big:hover { border-color: var(--red); background: #fdeeee; }
.hz-detail-info { flex: 1; min-width: 0; }
.hz-detail-py { font-size: 1.5rem; color: var(--red); font-weight: 700; }
.hz-detail-py small { font-size: 0.72rem; color: var(--muted); font-weight: 400; }
.hz-detail-en { font-size: 1.1rem; color: var(--ink); margin-bottom: 8px; }
.hz-detail-tip { font-size: 0.92rem; line-height: 1.8; color: var(--ink); margin-bottom: 12px; }
.hz-words-label { font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.word-chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.word-chip {
  font-family: inherit;
  border: 1.5px solid var(--gold);
  background: #fdf6e3;
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  transition: border-color 0.12s, background 0.12s;
}
.word-chip:hover { border-color: var(--red); background: #fdeeee; }
.word-chip b { font-size: 1.05rem; color: var(--red-dark); }
.word-chip .word-py { color: var(--red); font-size: 0.85rem; }
.word-chip .word-en { color: var(--muted); font-size: 0.8rem; }
.hz-got {
  font-family: inherit;
  border: none;
  border-radius: 999px;
  background: var(--red);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 24px;
  cursor: pointer;
  transition: background 0.12s;
}
.hz-got:hover { background: var(--red-dark); }
.hz-got.done { background: var(--green); }

/* ---------- 识字测验 ---------- */
.hz-quiz-wrap { max-width: 600px; margin: 0 auto; }
.quiz-listen, .quiz-meaning {
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 10px;
}
.quiz-listen small, .quiz-meaning small { color: var(--muted); }
.quiz-replay {
  font-family: inherit;
  font-size: 1.05rem;
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 28px;
  cursor: pointer;
  margin-bottom: 18px;
}
.quiz-replay:hover { background: var(--red-dark); }
.quiz-char {
  font-family: "KaiTi", "STKaiti", "楷体", serif;
  font-size: 4.5rem;
  color: var(--red-dark);
  text-align: center;
  margin-bottom: 18px;
}
.hz-quiz-opts .quiz-opt { font-family: "KaiTi", "STKaiti", "楷体", serif; font-size: 2rem; }
.quiz-feedback { min-height: 28px; text-align: center; margin-top: 14px; font-size: 1rem; }
.quiz-feedback.right { color: var(--green); }
.quiz-feedback.wrong { color: var(--red); }
.voice-warn {
  display: none;
  background: #fdf1dc;
  border: 1px solid var(--gold);
  color: #7a5a14;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.88rem;
  margin-bottom: 14px;
}

/* ---------- 打印：只留字卡区 ---------- */
@media print {
  .site-header, .site-footer, .hero, .quiz-section, .hz-overlay { display: none !important; }
  body { background: #fff; }
  .hz-card, .picto-card, .rad-card, .combo-card, .idea-card { box-shadow: none; break-inside: avoid; }
}

@media (max-width: 640px) {
  .hz-detail-main { flex-direction: column; align-items: center; text-align: center; }
  .hz-detail-tip { text-align: left; }
  .word-chip-list { justify-content: center; }
  .hz-quiz-opts .quiz-opt { font-size: 1.6rem; }
  .quiz-char { font-size: 3.4rem; }
}