* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: tauhu-oo, sans-serif;
}

body {
  background-color: #f5f5f5;
  padding: 0px;
  line-height: 1.6;
}

.container {
  margin: 0 auto;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
  color: #333;
}

.converter-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.input-section,
.output-section {
  flex: 1;
  min-width: 300px;
}

.section-title {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: #444;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px;
  border-radius: 4px;
}

.title-text {
  font-weight: bold;
  cursor: pointer;
  padding: 3px 8px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.title-text:hover {
  background-color: #f0f7ff;
}

.section-title span:first-child {
  font-weight: bold; /* 加粗標題文字 */
}

.font-size-control {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: auto;
}

.font-size-control select {
  padding: 2px 5px;
  border: 1px solid #ddd;
  border-radius: 3px;
}

/* 文本區域容器，用於定位按鈕 */
.textarea-container {
  position: relative;
  width: 100%;
}

/* 右上角按鈕容器 */
.corner-buttons {
  position: absolute;
  top: 5px;
  right: 5px;
  display: flex;
  gap: 5px;
  z-index: 10;
}

/* 圖示按鈕樣式 */
.icon-button {
  width: 30px;
  height: 30px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  color: #4c8bf5;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.icon-button:hover {
  background-color: #4c8bf5;
  color: white;
}

textarea {
  width: 100%;
  height: 300px;
  padding: 24px 24px 12px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  resize: vertical;
  font-size: 16px;
  line-height: 1.5;
}

.output-area {
  width: 100%;
  height: 300px;
  padding: 24px 24px 12px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow-y: auto;
  font-size: 20px; /* 默認中等字體大小 */
  line-height: 1.5;
  background-color: #fff;
  position: relative;
  cursor: default;
}

/* 在 styles.css 中添加拼音編輯按鈕和輸入框的樣式 */

.edit-pinyin-button {
  background-color: #e0edff;
  border: 1px solid #b3d4fc;
  color: #4c8bf5;
  font-size: 0.9em;
}

.edit-pinyin-button:hover {
  background-color: #d0e3ff;
}

.pinyin-edit-input {
  width: 100%;
  padding: 5px 10px;
  background-color: #fff;
  border: 1px solid #4c8bf5;
  border-radius: 3px;
}

.pinyin-edit-input span {
  width: 100%;
  min-height: 20px;
}

textarea:focus,
.output-area:focus {
  outline: none;
  border-color: #4c8bf5;
  box-shadow: 0 0 0 2px rgba(76, 139, 245, 0.2);
}

.button-group {
  margin: 10px 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

button {
  padding: 4px 16px;
  background-color: #4c8bf5;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: background-color 0.2s;
}

button:hover {
  background-color: #3a7be0;
}

button:disabled {
  background-color: #aaa;
  cursor: not-allowed;
}

.settings-panel {
  width: 100%;
  min-height: 80px; /* 與候選字面板高度一致 */
  background-color: #f9f9f9;
  border-radius: 4px;
  border: 1px solid #eee;
  padding: 12px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.settings-title {
  font-weight: bold;
  margin-bottom: 10px;
  color: #555;
}

.settings-options {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  width: 100%;
}

.settings-option {
  display: flex;
  align-items: center;
  gap: 5px;
}

.settings-option select {
  padding: 4px 8px;
  border: 1px solid #ddd;
  border-radius: 3px;
}

/* 收合狀態的輸入區域 */
.input-section.collapsed {
  display: none;
}

/* 輸出區域在輸入區域收合時的樣式 */
.output-section.expanded {
  flex: 1;
  width: 100%;
}

/* 固定候選字面板樣式 */
.fixed-candidate-panel {
  width: 100%;
  min-height: 80px; /* 增加高度 */
  background-color: #f0f7ff;
  border: 1px solid #d0e3ff;
  border-radius: 4px;
  padding: 12px; /* 增加內邊距 */
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.candidate-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0px; /* 增加間距 */
  width: 100%;
}

/* 新增浮動提示樣式 */
.floating-notification {
  position: fixed;
  top: 10%;
  right: 10%;
  padding: 10px 15px;
  background-color: #4c8bf5;
  color: white;
  border-radius: 4px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  font-size: 14px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  max-width: 300px;
  text-align: center;
}

.floating-notification.show {
  opacity: 1;
  transform: translateY(0);
}

.dictionary-panel {
  margin-top: 20px;
  padding: 15px;
  background-color: #f9f9f9;
  border-radius: 4px;
  border: 1px solid #eee;
}

.dictionary-input {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.dictionary-input input {
  flex: 1;
  min-width: 150px;
  padding: 8px;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.dictionary-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
  padding: 5px;
  background-color: #fff;
  border-radius: 3px;
}

.dictionary-actions {
  display: flex;
  gap: 5px;
}

.dictionary-action {
  padding: 2px 5px;
  background-color: #eee;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  font-size: 12px;
}

.dictionary-action:hover {
  background-color: #ddd;
}

.delete-word {
  background-color: #ffebee;
  color: #d32f2f;
}

.delete-word:hover {
  background-color: #ffcdd2;
}

.toggle-dictionary-btn {
  margin-top: 20px;
  background-color: #f5f5f5;
  color: #333;
  border: 1px solid #ddd;
}

.toggle-dictionary-btn:hover {
  background-color: #e0e0e0;
}

.tooltip {
  position: relative;
  display: inline-block;
  margin-left: 5px;
  width: 16px;
  height: 16px;
  z-index: 999;
  background-color: #eee;
  border-radius: 50%;
  text-align: center;
  line-height: 16px;
  font-size: 12px;
  color: #666;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 200px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 4px;
  padding: 5px;
  position: absolute;
  z-index: 999;
  bottom: 125%;
  left: 50%;
  margin-left: -100px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 12px;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

.char-hover {
  position: relative;
  display: inline-block;
  cursor: default;
  user-select: text;
}

.char-hover::selection,
.char-hover *::selection {
  background-color: #b3d4fc; /* 自定義選取顏色 */
  color: inherit;
}

.output-area::selection,
.output-area *::selection {
  background-color: #b3d4fc; /* 確保整個輸出區域的選取顏色一致 */
  color: inherit;
}

.char-hover .pinyin-hint {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #333;
  color: white;
  padding: 2px 5px;
  border-radius: 3px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.char-hover:hover .pinyin-hint {
  opacity: 1;
}

/* Ruby 標注樣式 */
ruby {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  vertical-align: baseline;
  line-height: 1.2;
  margin: 0 2px;
  cursor: default;
}

ruby.ruby-top {
  flex-direction: column-reverse;
  vertical-align: bottom;
}

ruby.ruby-bottom {
  flex-direction: column;
}

rt {
  font-size: 0.6em;
  text-align: center;
  color: #666;
  line-height: 1;
}

.status-flash {
  color: #4c8bf5;
  font-weight: bold;
  animation: flash-message 2s ease-in-out;
}

@keyframes flash-message {
  0% {
    opacity: 0;
  }
  25% {
    opacity: 1;
  }
  75% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

/* 候選項編號樣式 */
.candidate-index {
  position: absolute;
  top: 2px;
  left: 2px;
  font-size: 10px;
  color: #666;
  line-height: 1;
}

/* 修改候選字樣式，使其支持編號定位 */
.candidate-word {
  position: relative;
  display: inline-block;
  margin: 2px;
  padding: 5px 10px;
  padding-left: 12px;
  padding-top: 7px;
  background-color: #f0f7ff;
  border: 1px solid #d0e3ff;
  border-radius: 3px;
  cursor: default;
  font-size: 18px;
}

.candidate-word:hover {
  background-color: #e0edff;
}

.char-selected {
  background-color: #b3d4fc;
  border-radius: 2px;
}

.ruby-container.char-selected ruby {
  background-color: #b3d4fc;
  border-radius: 2px;
}

/* 多選模式下的樣式 */
.char-multiselect {
  background-color: #ffcdd2;
  border-radius: 2px;
}

.ruby-container.char-multiselect ruby {
  background-color: #ffcdd2;
  border-radius: 2px;
}

/* 修改手機版樣式 */
@media (max-width: 768px) {
  body {
    padding: 10px;
    /* 啟用平滑滾動，讓整頁滾動更流暢 */
    scroll-behavior: smooth;
    /* 設定滾動貼齊，讓滾動停在區塊邊界 */
    scroll-snap-type: y proximity;
  }

  .container {
    padding: 15px;
    /* 確保容器可以滿足滾動貼齊 */
    scroll-snap-align: start;
  }

  .converter-wrapper {
    flex-direction: column;
    /* 增加間距，讓區塊更分明 */
    gap: 30px;
  }

  .input-section,
  .output-section {
    width: 100%;
    /* 設定滾動貼齊，讓滾動停在區塊邊界 */
    scroll-snap-align: start;
    /* 增加底部間距，讓區塊更分明 */
    padding-bottom: 20px;
  }

  /* 增加輸入區域高度 */
  textarea {
    height: 450px;
  }

  /* 增加輸出區域高度 */
  .output-area {
    height: 450px;
  }

  /* 收合時的輸出區域高度更大 */
  .output-section.expanded .output-area {
    height: 500px;
  }

  /* 未收合時的輸入區域也要有足夠高度 */
  .input-section:not(.collapsed) textarea {
    height: 350px;
  }

  .settings-options {
    flex-direction: column;
    gap: 10px;
  }

  .dictionary-input {
    flex-direction: column;
  }

  .button-group {
    justify-content: center;
  }

  .section-title {
    padding: 10px;
    font-size: 16px;
    background-color: #f5f5f5;
    border-radius: 6px;
    margin-bottom: 12px;
  }

  .fixed-candidate-panel {
    min-height: 100px;
  }

  .font-size-control {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  /* 調整手機版浮動提示位置 */
  .floating-notification {
    top: 10px;
    right: 10px;
    left: 10px;
    max-width: calc(100% - 20px);
  }
}