/* ============================================================
   css/chat/chat-game-rhyme.css — 押韵神器 · Rhyme Lab（方向 B：韵脚实验室型）
   ------------------------------------------------------------
   结构：顶栏 → 输入 → ★韵脚主角（大号韵脚 u · i + 原词 + 拼音 + 候选数）
        → 读音确认（多音字）→ 控制卡（押法/韵法/词长/原词）→ 提示
        → 结果（按「同韵 / 近韵」分组）→ 最近使用 / 收藏 → 一句实话
   风格：韩系法式唯美 + 微信式简约。米白纸面、细金线、衬线中文标题、线性 SVG 图标、
   无 emoji、无系统默认控件；只做竖屏（#app 限宽 480）。
   ★ 触控目标一律 ≥44px；动画类只播一次；开合有过渡。
   ★ 根容器 flex:1 + min-height:0 + 自己滚（游戏中心既有的滚动口径）。
   ============================================================ */

.rhyme-root {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: calc(20px + var(--safe-bottom, 0px));
  animation: rhymeFadeIn 0.28s ease;
}
@keyframes rhymeFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}
.rhyme-root > * { flex-shrink: 0; }

/* 拼音专用字体栈：★Georgia 没有 ǎ ě ǐ ǒ ǔ ǚ 这些带声调字形，
   会用「a + 游离声调」凑出来（丑且难认）——所以拼音一律走这套（2028-09 实测）。 */
.rhyme-root { --rhyme-font-py: 'Times New Roman', Cambria, 'Noto Serif SC', Georgia, serif; }

/* ===== 顶栏按钮（触控一律 ≥44；只在押韵神器里生效，不动游戏中心共用样式）===== */
.rhyme-root .game-back { width: 44px; height: 44px; }
.rhyme-help-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.rhyme-help-btn:active { transform: scale(0.92); }
.rhyme-help-btn:hover { color: var(--gold-dark); border-color: var(--gold); }

/* ===== 主体 ===== */
.rhyme-body { padding: 4px 16px 0; }

/* 输入 */
.rhyme-search {
  position: relative;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s ease;
}
.rhyme-search:focus-within { border-color: var(--gold); }
.rhyme-input {
  flex: 1;
  min-width: 0;
  height: 52px;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  letter-spacing: 0.5px;
  text-align: center;
  -webkit-appearance: none;
  appearance: none;
}
.rhyme-input::placeholder { color: var(--text-muted); font-size: 15px; letter-spacing: 0.5px; }
.rhyme-clear {
  width: 44px; height: 44px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border: 0; background: transparent; color: var(--text-muted);
  cursor: pointer; transition: color 0.18s ease, transform 0.18s ease;
}
.rhyme-clear:active { transform: scale(0.9); }
.rhyme-clear:hover { color: var(--text-secondary); }

.rhyme-status {
  padding: 10px 2px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

/* ===== ★ 韵脚主角 ===== */
.rhyme-hero {
  padding: 18px 2px 16px;
  text-align: center;
  border-bottom: 1px solid var(--border-faint);
  animation: rhymeFadeIn 0.24s ease;
}
.rhyme-hero-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 11.5px;
  letter-spacing: 2px;
  color: var(--text-muted);
}
.rhyme-hairline {
  flex: 1;
  max-width: 64px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-light), transparent);
}
.rhyme-hero-finals {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: 8px;
  color: var(--text-primary);
}
.rhyme-hero-finals .rhyme-dot {
  font-size: 22px;
  letter-spacing: 0;
  vertical-align: 6px;
  color: var(--gold);
}
.rhyme-hero-word {
  font-family: var(--font-body);
  font-size: 20px;
  letter-spacing: 3px;
  color: var(--text-primary);
}
.rhyme-hero-py {
  margin-top: 4px;
  font-family: var(--rhyme-font-py);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--text-secondary);
}
.rhyme-hero-count {
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: 1px;
  color: var(--text-muted);
  min-height: 16px;
}
.rhyme-pop { animation: rhymePop 0.22s ease; }
@keyframes rhymePop {
  0% { transform: scale(0.97); opacity: 0.55; }
  100% { transform: none; opacity: 1; }
}

/* 多音字读音确认 */
.rhyme-readings {
  margin-top: 14px;
  padding: 12px 12px 6px;
  border: 1px solid var(--gold-light);
  border-radius: 14px;
  background: rgba(196, 168, 106, 0.06);
  animation: rhymePop 0.22s ease;
}
.rhyme-readings-title {
  font-size: 12.5px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.rhyme-reading-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.rhyme-reading-ch {
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--text-primary);
  min-width: 20px;
}
.rhyme-reading-final {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 11.5px;
  color: var(--gold-dark);
  opacity: 0.85;
}

/* ===== 控制卡（四行）===== */
.rhyme-controls {
  margin: 16px 0 2px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-solid);
  overflow: hidden;
}
.rhyme-ctl-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 60px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-faint);
}
.rhyme-ctl-row:last-child { border-bottom: 0; }
.rhyme-ctl-label {
  width: 34px;
  flex-shrink: 0;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-muted);
}
.rhyme-ctl-chips {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.rhyme-chip {
  min-height: 44px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13.5px;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.rhyme-chip:active { transform: scale(0.95); }
.rhyme-chip.on {
  border-color: var(--gold);
  color: var(--gold-dark);
  background: var(--gold-light);
}

/* ===== 提示 / 空状态 ===== */
.rhyme-notice {
  margin: 12px 0 2px;
  padding: 10px 12px;
  border-left: 2px solid var(--gold-light);
  border-radius: 0 10px 10px 0;
  background: rgba(196, 168, 106, 0.06);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  animation: rhymePop 0.2s ease;
}

/* ===== 结果 ===== */
.rhyme-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 14px 0 6px;
}
.rhyme-batch-info {
  font-size: 11.5px;
  color: var(--text-muted);
  letter-spacing: 0.8px;
}
.rhyme-head-btns { display: flex; gap: 8px; }
.rhyme-mini {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 12.5px;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.rhyme-mini:active { transform: scale(0.95); }
.rhyme-mini:hover { border-color: var(--gold); color: var(--gold-dark); }

.rhyme-results { padding-bottom: 4px; }
.rhyme-group { margin-bottom: 10px; }
.rhyme-group-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 6px;
}
.rhyme-group-title {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--text-primary);
}
.rhyme-group-sub {
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}
.rhyme-group-head::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--gold-light), transparent);
}
.rhyme-group-n {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12.5px;
  letter-spacing: 1px;
  color: var(--gold-dark);
}

.rhyme-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 58px;
  padding: 8px 4px 8px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  border-bottom: 1px solid var(--border-faint);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
  -webkit-tap-highlight-color: transparent;
}
.rhyme-item:hover { background: rgba(196, 168, 106, 0.07); border-color: var(--gold-light); }
.rhyme-item:active { transform: scale(0.985); }
.rhyme-item-word {
  font-family: var(--font-body);
  font-size: 16.5px;
  letter-spacing: 0.8px;
  color: var(--text-primary);
  min-width: 4.6em;
}
.rhyme-item-pinyin {
  font-family: var(--rhyme-font-py);
  font-style: italic;
  font-size: 13px;
  color: var(--text-secondary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.rhyme-item-final {
  font-family: var(--font-display);
  font-size: 12.5px;
  letter-spacing: 1.4px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px 8px;
  white-space: nowrap;
}
.rhyme-item-wide .rhyme-item-final { border-color: var(--gold-light); color: var(--gold-dark); }
.rhyme-item-tag {
  flex-shrink: 0;
  font-size: 10.5px;
  letter-spacing: 0.5px;
  color: var(--gold-dark);
  border: 1px solid var(--gold-light);
  border-radius: 999px;
  padding: 1px 7px;
}
.rhyme-fav-btn {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border: 0; background: transparent; color: var(--text-muted);
  cursor: pointer; transition: color 0.18s ease, transform 0.18s ease;
}
.rhyme-fav-btn:hover { color: var(--gold-dark); }
.rhyme-fav-btn:active { transform: scale(0.9); }
.rhyme-fav-btn.on { color: var(--gold); }
.rhyme-fav-btn.on svg { fill: currentColor; fill-opacity: 0.22; }

/* 入场动画：一次性（animationend 后由 JS 摘掉） */
.rhyme-in { animation: rhymeIn 0.26s ease both; }
@keyframes rhymeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ===== 最近使用 / 收藏 ===== */
.rhyme-side { padding: 6px 0 2px; }
.rhyme-side-block { margin-top: 10px; }
.rhyme-side-title {
  font-size: 11.5px;
  color: var(--text-muted);
  letter-spacing: 1.6px;
  margin-bottom: 6px;
}
.rhyme-side-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.rhyme-side-chip {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.rhyme-side-chip:active { transform: scale(0.95); }
.rhyme-side-chip:hover { border-color: var(--gold); color: var(--gold-dark); }

.rhyme-hint {
  margin: 16px 0 8px;
  font-size: 11.5px;
  line-height: 1.8;
  color: var(--text-muted);
  letter-spacing: 0.4px;
}

/* ===== 说明层（挂游戏层内，开合有过渡）===== */
.rhyme-help {
  position: fixed;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  z-index: 460;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(30, 28, 26, 0.3);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  animation: rhymeFadeIn 0.2s ease;
}
.rhyme-help-panel {
  width: 100%;
  max-width: 340px;
  padding: 22px 20px 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface-solid);
  box-shadow: 0 18px 48px rgba(40, 32, 26, 0.18);
  animation: rhymePop 0.24s ease;
}
.rhyme-help-title {
  font-family: var(--font-body);
  font-size: 17px;
  letter-spacing: 1px;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.rhyme-help-text {
  font-size: 12.5px;
  line-height: 2;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}
.rhyme-help-close {
  width: 100%;
  height: 46px;
  margin-top: 16px;
  border-radius: 999px;
  border: 1px solid var(--gold);
  background: var(--gold-light);
  color: var(--gold-dark);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: transform 0.18s ease;
}
.rhyme-help-close:active { transform: scale(0.97); }

/* ===== 深色主题 ===== */
[data-theme-mode="dark"] .rhyme-controls { background: rgba(255, 255, 255, 0.05); }
[data-theme-mode="dark"] .rhyme-chip.on { background: rgba(196, 168, 106, 0.16); }
[data-theme-mode="dark"] .rhyme-help { background: rgba(0, 0, 0, 0.55); }
[data-theme-mode="dark"] .rhyme-help-panel { background: #23201D; }
[data-theme-mode="dark"] .rhyme-item:hover { background: rgba(196, 168, 106, 0.1); }
[data-theme-mode="dark"] .rhyme-notice,
[data-theme-mode="dark"] .rhyme-readings { background: rgba(196, 168, 106, 0.08); }
[data-theme-mode="dark"] .rhyme-item-tag { color: var(--gold); }

/* ===== 窄屏（<370px）===== */
@media (max-width: 369px) {
  .rhyme-body { padding: 4px 12px 0; }
  .rhyme-hero-finals { font-size: 38px; letter-spacing: 6px; }
  .rhyme-chip { padding: 0 10px; font-size: 13px; }
  .rhyme-item-word { font-size: 15.5px; min-width: 4.2em; }
  .rhyme-item-pinyin { font-size: 12px; }
  .rhyme-ctl-label { width: 30px; letter-spacing: 1px; }
}

/* ===== 极窄（<340px）：拼音行宁可省，也不许横向溢出 ===== */
@media (max-width: 339px) {
  .rhyme-item-pinyin { display: none; }
}