/* ===== 导航 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(253, 246, 227, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--clay-light);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  transition: transform 0.3s;
}
.navbar.hidden { transform: translateY(-100%); }
.navbar .logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.2rem; font-weight: 700; color: var(--clay);
}
.navbar .logo span { font-size: 1.5rem; }
.navbar .links {
  display: flex; gap: 4px; list-style: none;
  overflow-x: auto; flex-wrap: nowrap;
}
.navbar .links a {
  display: block; padding: 8px 14px; border-radius: 20px;
  color: var(--ink); font-size: 0.85rem;
  font-weight: 500; transition: all 0.2s; white-space: nowrap;
}
.navbar .links a:hover {
  background: var(--clay-light); color: var(--clay);
}
.navbar .toggle {
  display: none; background: none; border: none;
  font-size: 1.5rem; cursor: pointer; color: var(--clay);
}

/* ===== Section 通用 ===== */
.section {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--clay);
  margin-bottom: 0.3em;
}
.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--clay), var(--gold));
  border-radius: 2px;
  margin: 12px auto 0;
}
.section-subtitle {
  text-align: center;
  color: var(--ink-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 50px;
}
.section-alt {
  background: linear-gradient(180deg, var(--clay-bg), #fff8f0, var(--clay-bg));
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 100px 20px 60px;
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--clay-bg) 0%, #fce8d0 50%, var(--clay-bg) 100%);
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 900;
  color: var(--clay);
  margin-bottom: 0.3em;
  text-shadow: 0 2px 10px rgba(193, 120, 23, 0.2);
}
.hero .subtitle {
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  color: var(--ink-light);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 40px; background: var(--clay); color: #fff;
  border-radius: 50px; font-size: 1.1rem; font-weight: 700;
  text-decoration: none; transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(193, 120, 23, 0.3);
}
.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(193, 120, 23, 0.4);
}

/* ===== 信息卡片 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.card {
  background: #fff; border-radius: var(--radius);
  padding: 30px 24px; box-shadow: var(--shadow);
  text-align: center; transition: all 0.3s;
  border: 2px solid transparent;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--clay-light);
}
.card .icon { font-size: 3rem; margin-bottom: 12px; display: block; }
.card h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--ink); }
.card p { font-size: 0.95rem; color: var(--ink-light); line-height: 1.6; }

/* ===== 故事场景 ===== */
.story-scene {
  background: #fff; border-radius: var(--radius);
  padding: 32px; margin-bottom: 24px; box-shadow: var(--shadow);
  border-left: 4px solid var(--clay);
  transition: all 0.3s;
}
.story-scene:hover {
  transform: translateX(5px);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.1);
}
.story-scene h3 { color: var(--clay); font-size: 1.1rem; margin-bottom: 10px; }
.story-scene h3 .badge {
  display: inline-block; background: var(--clay); color: #fff;
  padding: 2px 12px; border-radius: 12px; font-size: 0.8rem; margin-right: 8px;
}
.story-scene p { color: var(--ink-light); line-height: 1.8; font-size: 0.95rem; }

/* ===== 人物卡片 ===== */
.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin-top: 30px;
}
.person-card {
  background: #fff; border-radius: var(--radius);
  padding: 20px; text-align: center; box-shadow: var(--shadow);
  transition: all 0.3s;
}
.person-card:hover { transform: translateY(-3px); }
.person-card .emoji { font-size: 2.5rem; display: block; margin-bottom: 8px; }
.person-card .name { font-weight: 700; font-size: 1rem; color: var(--ink); }
.person-card .role { font-size: 0.8rem; color: var(--clay); margin-bottom: 4px; }
.person-card .desc { font-size: 0.85rem; color: var(--ink-light); line-height: 1.5; }

/* ===== 演变时间线 ===== */
.evo-container { padding: 20px 0; overflow-x: auto; }
.evo-track {
  display: flex; gap: 16px; padding: 20px 10px;
  min-width: 700px;
}
.evo-item {
  flex: 1; min-width: 120px; background: #fff;
  border-radius: var(--radius); padding: 20px 16px;
  text-align: center; box-shadow: var(--shadow);
  transition: all 0.3s;
}
.evo-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}
.evo-item .char-display { font-size: 2.5rem; margin-bottom: 8px; display: block; color: var(--clay); }
.evo-item .char-label { font-size: 0.9rem; font-weight: 600; color: var(--ink); }
.evo-item .char-period { font-size: 0.75rem; color: var(--ink-light); margin-top: 4px; }
.evo-arrow {
  display: flex; align-items: center;
  color: var(--clay); font-size: 1.5rem;
  flex-shrink: 0; padding: 0 4px;
}

/* ===== 汉字画廊卡片 ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px; margin-top: 30px;
}
.char-card { perspective: 800px; height: 220px; cursor: pointer; }
.char-card-inner {
  position: relative; width: 100%; height: 100%;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}
.char-card.flipped .char-card-inner { transform: rotateY(180deg); }
.char-card-front, .char-card-back {
  position: absolute; inset: 0;
  border-radius: var(--radius);
  backface-visibility: hidden;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 16px; box-shadow: var(--shadow);
  background: #fff; border: 2px solid var(--clay-light);
}
.char-card-back {
  transform: rotateY(180deg);
  background: linear-gradient(135deg, var(--clay-bg), #fff);
}
.char-card-front .oracle-img {
  width: 100px; height: 100px;
  object-fit: contain;
  margin-bottom: 6px;
  filter: invert(18%) sepia(20%) saturate(2000%) hue-rotate(-20deg) brightness(0.9);
}
.char-card-front .oracle { font-size: 3rem; margin-bottom: 6px; color: var(--clay); display: none; }
.char-card-front .hint { font-size: 0.75rem; color: var(--ink-light); margin-top: 8px; opacity: 0.7; }
.char-card-back .modern { font-size: 3rem; margin-bottom: 4px; color: var(--cinnabar); }
.char-card-back .pinyin { font-size: 0.9rem; color: var(--ink-light); margin-bottom: 4px; }
.char-card-back .meaning { font-size: 0.85rem; color: var(--ink); font-weight: 600; }
.char-card-back .fun-fact {
  font-size: 0.75rem; color: var(--ink-light);
  margin-top: 6px; text-align: center; line-height: 1.4;
}
.char-card .flip-icon {
  position: absolute; bottom: 8px; right: 8px;
  font-size: 0.9rem; opacity: 0.5; transition: opacity 0.3s;
}
.char-card:hover .flip-icon { opacity: 1; }

/* ===== 六书卡片 ===== */
.liushu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; margin-top: 30px;
}
.liushu-card {
  background: #fff; border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
  border-top: 4px solid var(--clay);
  transition: all 0.3s;
}
.liushu-card:hover { transform: translateY(-3px); }
.liushu-card h3 { font-size: 1.1rem; color: var(--clay); margin-bottom: 6px; }
.liushu-card .desc { font-size: 0.9rem; color: var(--ink-light); margin-bottom: 10px; }
.liushu-card .examples { display: flex; gap: 10px; flex-wrap: wrap; }
.liushu-card .example {
  background: var(--clay-light); padding: 4px 12px;
  border-radius: 8px; font-size: 0.85rem; color: var(--ink);
}

/* ===== 趣味知识卡片 ===== */
.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px; margin-top: 30px;
}
.fact-card {
  background: #fff; border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
  text-align: center; transition: all 0.3s;
  position: relative; overflow: hidden;
}
.fact-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--clay), var(--gold));
}
.fact-card:hover { transform: translateY(-3px); }
.fact-card .fact-icon { font-size: 2.5rem; display: block; margin-bottom: 8px; }
.fact-card .fact-num {
  font-size: 1.8rem; font-weight: 800; color: var(--clay); display: block;
}
.fact-card p { font-size: 0.9rem; color: var(--ink-light); margin-top: 6px; line-height: 1.5; }

/* ===== 游戏 ===== */
.game-container { max-width: 700px; margin: 30px auto 0; }
.game-score {
  display: flex; align-items: center; justify-content: space-between;
  background: #fff; padding: 16px 24px;
  border-radius: var(--radius); box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.game-score .label { font-size: 0.9rem; color: var(--ink-light); }
.game-score .num { font-size: 1.4rem; font-weight: 800; color: var(--clay); }
.game-board {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 16px; margin-bottom: 20px;
}
.game-col { display: flex; flex-direction: column; gap: 10px; }
.game-col-title {
  text-align: center; font-weight: 600; font-size: 0.9rem;
  color: var(--ink-light); margin-bottom: 4px;
}
.game-card {
  background: #fff; border-radius: 12px; padding: 16px;
  text-align: center; box-shadow: var(--shadow-sm);
  cursor: pointer; transition: all 0.3s;
  border: 2px solid transparent;
  font-size: 1.2rem; user-select: none;
  min-height: 60px; display: flex;
  align-items: center; justify-content: center;
}
.game-card.oracle {
  font-size: 2.5rem; color: var(--clay);
  min-height: 80px;
}
.game-card.oracle .oracle-card-img {
  width: 60px; height: 60px;
  object-fit: contain;
  filter: invert(18%) sepia(20%) saturate(2000%) hue-rotate(-20deg) brightness(0.9);
}
.game-card.oracle .oracle-fallback { display: none; }
.game-card.modern { font-size: 1.8rem; color: var(--cinnabar); font-weight: 700; }
.game-card:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); }
.game-card.selected {
  border-color: var(--clay);
  background: var(--clay-light);
  transform: scale(1.05);
}
.game-card.matched {
  opacity: 0.5; pointer-events: none;
  border-color: var(--jade); background: var(--jade-light);
}
.game-card.wrong {
  border-color: var(--cinnabar);
  background: var(--cinnabar-light);
  animation: shake 0.4s;
}
.game-result {
  text-align: center; padding: 30px; background: #fff;
  border-radius: var(--radius); box-shadow: var(--shadow);
  display: none;
}
.game-result.show { display: block; animation: popIn 0.5s; }
.game-result .result-icon { font-size: 4rem; display: block; margin-bottom: 12px; }
.game-result h3 { font-size: 1.3rem; color: var(--clay); margin-bottom: 8px; }
.game-result p { color: var(--ink-light); margin-bottom: 16px; }
.game-reset {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 30px; background: var(--clay); color: #fff;
  border: none; border-radius: 50px; font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: all 0.3s;
}
.game-reset:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(193, 120, 23, 0.3);
}

/* ===== 趣味问答 ===== */
.quiz-container {
  max-width: 680px; margin: 30px auto 0;
  background: #fff; border-radius: var(--radius);
  padding: 32px; box-shadow: var(--shadow);
}
.quiz-start, .quiz-result {
  text-align: center;
}
.quiz-icon { font-size: 4rem; margin-bottom: 12px; }
.quiz-start h3, .quiz-result h3 {
  font-size: 1.3rem; color: var(--clay); margin-bottom: 8px;
}
.quiz-start p, .quiz-message {
  color: var(--ink-light); margin-bottom: 20px; font-size: 0.95rem;
}
.quiz-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--clay); color: #fff;
  border: none; border-radius: 50px; font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: all 0.3s;
}
.quiz-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(193, 120, 23, 0.3);
}
.quiz-progress {
  display: flex; align-items: center; gap: 12px; margin-bottom: 20px;
}
.quiz-progress-bar {
  flex: 1; height: 8px; background: var(--clay-light);
  border-radius: 4px; overflow: hidden;
}
.quiz-progress-fill {
  height: 100%; background: linear-gradient(90deg, var(--clay), var(--gold));
  border-radius: 4px; transition: width 0.3s;
}
.quiz-progress-text {
  font-size: 0.85rem; color: var(--ink-light); font-weight: 600; min-width: 44px; text-align: right;
}
.quiz-question {
  font-size: 1.15rem; color: var(--ink); font-weight: 700;
  margin-bottom: 20px; line-height: 1.5;
}
.quiz-options {
  display: flex; flex-direction: column; gap: 12px;
}
.quiz-option {
  text-align: left; padding: 16px 20px;
  background: var(--clay-bg); border: 2px solid transparent;
  border-radius: 12px; font-size: 1rem; color: var(--ink);
  cursor: pointer; transition: all 0.2s;
}
.quiz-option:hover:not(:disabled) {
  border-color: var(--clay-light); transform: translateX(4px);
}
.quiz-option.correct {
  border-color: var(--jade); background: var(--jade-light); color: var(--jade-dark);
}
.quiz-option.wrong {
  border-color: var(--cinnabar); background: var(--cinnabar-light); color: var(--cinnabar);
}
.quiz-option:disabled { cursor: default; }
.quiz-feedback {
  margin-top: 16px; padding: 14px 18px; border-radius: 10px;
  font-size: 0.95rem; display: none;
}
.quiz-feedback.show { display: block; animation: fadeIn 0.3s; }
.quiz-feedback.correct { background: var(--jade-light); color: var(--jade-dark); }
.quiz-feedback.wrong { background: var(--cinnabar-light); color: var(--cinnabar); }
.quiz-result .quiz-score {
  font-size: 2.5rem; font-weight: 800; color: var(--clay); margin: 12px 0;
}

/* ===== 占卜流程时间线 ===== */
.what-timeline {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; flex-wrap: wrap;
  margin: 40px auto 0; max-width: 800px; padding: 20px;
  background: rgba(193, 120, 23, 0.06);
  border-radius: var(--radius);
}
.what-timeline .step { text-align: center; flex: 1; min-width: 100px; }
.what-timeline .step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--clay); color: #fff; font-weight: 700; margin-bottom: 8px;
}
.what-timeline .step-text { font-size: 0.85rem; color: var(--ink-light); }
.what-timeline .arrow { font-size: 1.2rem; color: var(--clay); }

/* ===== Footer ===== */
footer {
  background: var(--ink); color: var(--clay-light);
  padding: 40px 20px; text-align: center;
}
footer p { font-size: 0.9rem; margin-bottom: 6px; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .navbar .links { display: none; }
  .navbar .links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 60px; left: 0; right: 0;
    background: rgba(253, 246, 227, 0.98);
    padding: 16px; border-bottom: 2px solid var(--clay-light);
    gap: 8px;
  }
  .navbar .toggle { display: block; }
  .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .char-card { height: 200px; }
  .game-board { grid-template-columns: 1fr; }
  .game-board .game-col:first-child { order: 2; }
  .game-board .game-col:last-child { order: 1; }
  .game-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .game-col-title { grid-column: 1 / -1; }
  .what-timeline { flex-direction: column; align-items: stretch; }
  .what-timeline .arrow { transform: rotate(90deg); text-align: center; }
  .story-scene { padding: 24px 20px; }
  .evo-item { min-width: 100px; padding: 16px 12px; }
  .evo-item .char-display { font-size: 1.8rem; }
}
@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .char-card { height: 180px; }
  .char-card-front .oracle { font-size: 2.2rem; }
  .char-card-back .modern { font-size: 2.2rem; }
  .section { padding: 60px 16px; }
}