/* (移除) 捷運模式標題下方小膠囊提示 */
/* Base layout */
:root {
  --panel-width: 380px;
  --bg: #f8f4f4; /* 淺米色背景 */
  --card-bg: rgba(255,255,255,0.9); /* 更不透明的白色卡片 */
  --surface: rgba(255,255,255,0.95); /* 表面背景 */
  --text: #2d1b1b; /* 深棕色文字 */
  --muted: #6b5b5b;
  --primary: #8B1538; /* 哈佛深紅色 */
  --primary-hover: #6B0F2A; /* 更深的哈佛紅 */
  --border: rgba(139, 21, 56, 0.2); /* 深紅色邊框 */
  --danger: #5A0E1C;
  --error: #dc2626; /* 錯誤提示背景色 */
  --shadow-strong: 0 10px 30px rgba(139, 21, 56, 0.25), 0 2px 6px rgba(139, 21, 56, 0.15);
  --shadow-soft: 0 8px 20px rgba(139, 21, 56, 0.2);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.3);
  --border-radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { 
  box-sizing: border-box; 
}

html, body { 
  height: 100%; 
}

body {
  margin: 0;
  font-family: "PingFang TC", "Noto Sans TC", "Noto Sans CJK TC", "Microsoft JhengHei", "Heiti TC", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: linear-gradient(180deg, #f8f4f4 0%, #f0e8e8 100%);
  font-size: 16.5px; /* slightly larger base text */
  overflow: hidden;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  background: rgba(255,255,255,0.7);
  border-bottom: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  backdrop-filter: saturate(200%) blur(18px);
  box-shadow: var(--shadow-soft);
}

.app-header h1 { 
  font-size: 24px; /* 從 32px 縮小 */
  line-height: 1.2; 
  margin: 0; 
  font-weight: 800; 
  letter-spacing: -0.01em; 
  color: var(--primary);
  text-shadow: 0 2px 4px rgba(139, 21, 56, 0.2);
}

.beta-text {
  font-size: 16px;
  font-weight: 400;
  color: var(--muted);
}

.header-center {
  flex: 1;
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 2001; /* 確保模式切換器區域在正確的層級 */
}

/* 模式切換器 */
.mode-switch {
  position: relative;
  display: flex;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  padding: 6px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  z-index: 2001; /* 確保模式切換器在正確的層級 */
}

.mode-btn {
  position: relative;
  padding: 12px 28px;
  border: none;
  background: transparent;
  color: rgba(128, 128, 128, 0.8); /* 未選中時為灰色 */
  font-size: 16px;
  font-weight: 600;
  font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  border-radius: 24px;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 2002; /* 確保按鈕在 header 上方，且高於 mode-indicator */
}

.mode-btn:hover {
  color: rgba(255, 255, 255, 0.9);
}

.mode-btn.active {
  color: var(--primary);
  font-weight: 700;
}

.mode-indicator {
  position: absolute;
  top: 4px;
  left: 4px;
  height: calc(100% - 8px);
  width: calc(50% - 4px);
  background: white;
  border-radius: 18px;
  transition: transform 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  z-index: 1;
  pointer-events: none; /* 不攔截點擊事件，讓按鈕可以正常點擊 */
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 2001; /* 確保右側按鈕區域在正確的層級 */
}


.help-btn {
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  font-size: 12px;
  position: relative;
  z-index: 2001;
}

.help-btn:hover {
  background: var(--background);
  border-color: var(--primary);
}

/* 語言切換按鈕組 */
.language-switcher {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--surface);
  position: relative;
  z-index: 2001;
}

.lang-btn {
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  font-size: 12px;
  position: relative;
  flex: 1;
  min-width: 40px;
}

.lang-btn:first-child {
  border-right: 1px solid var(--border);
}

.lang-btn:hover {
  background: var(--background);
}

.lang-btn.active {
  background: var(--primary);
  color: white;
  font-weight: 600;
}

.help-text {
  font-size: 10px;
  margin-left: 4px;
}

/* 應用容器 */
.app-container {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

/* 全屏地圖 */
.fullscreen-map {
  position: fixed;
  top: 80px; /* 只保留 header 高度 */
  left: 0;
  right: 0;
  bottom: 0; /* 延展到底部 */
  z-index: 1;
  transition: top 0.3s ease; /* 添加平滑過渡 */
}

/* 地圖圖例 */
.map-legend {
  position: absolute;
  top: 270px; /* 再下移更多 */
  left: 20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 10px; /* 進一步減少內邊距 */
  display: flex;
  flex-direction: column;
  gap: 5px; /* 進一步減少間距 */
  box-shadow: var(--shadow);
  z-index: 500;
  border: 1px solid black;
  transform: scale(0.85); /* 進一步縮小 */
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px; /* 進一步減少間距 */
  font-size: 10px; /* 進一步縮小字體 */
  font-weight: 600;
  justify-content: flex-start;
}

.legend-line {
  width: 20px;
  height: 4px;
  border-radius: 2px;
}

.legend-line.shortest {
  background: #3C3C9A;
}

.legend-line.lowest {
  background: #2BB1AA;
  position: relative;
}

.legend-line.lowest::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 3px,
    #2BB1AA 3px,
    #2BB1AA 6px
  );
}

/* 覆蓋層選擇器 */
.map-overlay-selector {
  position: absolute;
  top: 125px; /* 再下移一點 */
  left: 20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 10px; /* 進一步減少內邊距 */
  box-shadow: var(--shadow);
  z-index: 500;
  border: 1px solid black;
  transform: scale(0.85); /* 進一步縮小 */
}

.map-overlay-selector h4 {
  font-size: 11px; /* 進一步縮小字體 */
  margin: 0 0 6px 0; /* 進一步減少底部間距 */
  color: var(--text);
}

.overlay-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.overlay-option {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
}

.overlay-option input[type="radio"] {
  margin: 0;
}

/* 禁用狀態的疊加圖層選項 */
.overlay-option:has(input[disabled]) {
  opacity: 0.5;
  cursor: not-allowed;
  color: var(--muted);
}

.overlay-option:has(input[disabled]) input[type="radio"] {
  cursor: not-allowed;
}

.overlay-option:has(input[disabled]):hover {
  background: none;
}

/* PM2.5顏色圖例 */
.pm25-color-legend {
  position: absolute;
  bottom: 20px;
  left: 20px;
  z-index: 500;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 2px solid #333;
  border-radius: 12px;
  padding: 12px;
  box-shadow: var(--shadow-strong);
  min-width: 180px;
}

.legend-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  text-align: center;
}

.color-bar-container {
  margin: 8px 0;
  height: 20px;
  width: 120px;
  position: relative;
  margin-left: auto;
  margin-right: auto;
}

.color-bar {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to right,
    #6BB6FA 0%,      /* 藍色 (0) */
    #7BBDF2 5.5%,    /* 藍-青 */
    #8BC4EA 11%,     /* 青藍 */
    #9BCCE1 16.5%,   /* 青 */
    #ABD3D9 22%,     /* 青綠 */
    #BCDAD1 27.5%,   /* 綠青 */
    #CCE1C9 33%,     /* 綠 */
    #DCE9C0 38.5%,   /* 黃綠 */
    #ECF0B8 44%,     /* 淡黃綠 */
    #FCF7B0 50%,     /* 黃色 (9) */
    #FCE7A8 55.5%,   /* 黃橙 */
    #FCD8A1 61%,     /* 橙黃 */
    #FBC899 66.5%,   /* 橙色 */
    #FBB991 72%,     /* 紅橙 */
    #FBA98A 77.5%,   /* 橙紅 */
    #FB9A82 83%,     /* 紅橙 */
    #FA8A7A 88.5%,   /* 淡紅 */
    #FA7B73 94%,     /* 紅色 */
    #FA6B6B 100%     /* 紅色 (18) */
  );
  border-radius: 4px;
  border: 1px solid #ccc;
}

.legend-labels {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text);
  margin-top: 4px;
  width: 120px;
  margin-left: auto;
  margin-right: auto;
}

.label-min {
  color: #6BB6FA; /* 藍色 */
  font-weight: 600;
}

.label-max {
  color: #FA6B6B; /* 紅色 */
  font-weight: 600;
}

/* 底圖選擇器 */
.map-tile-selector {
  position: absolute;
  top: 85px; /* 再下移一咪咪 */
  left: 20px;
  z-index: 500;
  border: 1px solid black;
  border-radius: 8px; /* 添加圓弧角 */
  transform: scale(0.85); /* 進一步縮小 */
}

.tile-selector-button {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 10px 12px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.tile-selector-button:hover {
  background: rgba(255, 255, 255, 1);
}

.tile-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  display: none;
  animation: dropdownSlideIn 0.2s ease-out;
}

.tile-dropdown.show {
  display: block;
}

.tile-option {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
  transition: background-color 0.2s ease;
}

.tile-option:hover {
  background: rgba(0, 0, 0, 0.05);
}

@keyframes dropdownSlideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 頂部功能卡 */
.left-panel {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  height: 280px;
  background: var(--card-bg);
  backdrop-filter: saturate(200%) blur(18px);
  box-shadow: var(--shadow-strong);
  z-index: 900;
  transform: translateY(-240px);
  transition: var(--transition);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.left-panel.expanded {
  transform: translateY(0);
}

.left-panel .panel-handle {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 40px;
  background: var(--card-bg);
  backdrop-filter: saturate(200%) blur(18px);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  box-shadow: var(--shadow-strong);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 901;
}

.left-panel .panel-handle:hover {
  background: var(--background);
}

/* 舊的把手樣式已移除，使用新的樣式 */

.left-panel.expanded .handle-arrow {
  transform: rotate(180deg);
}

.left-panel .panel-content {
  padding: 24px 24px 24px 24px;
  height: calc(100% - 40px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 20px;
}

/* 主要行佈局 */
.main-row {
  display: flex;
  gap: 24px;
  align-items: stretch; /* 改為 stretch 讓元素可以有不同的高度 */
  flex: 1;
  padding: 12px 0; /* 增加上下間距 */
}

/* 地址輸入區域 */
.address-section {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.address-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 輸入框與標籤容器 */
.input-with-label {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

/* 輸入框標籤樣式 */
.input-label {
  font-size: 14px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  min-width: 50px;
  text-align: center;
  white-space: nowrap;
  flex-shrink: 0;
}

/* 起點標籤 - 一般綠色 */
.start-label {
  background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

/* 終點標籤 - 紅色 */
.end-label {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

/* 輸入框與定位按鈕容器 */
.input-with-location-btn {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
}

/* 緊湊輸入框樣式 */
.text-input-compact {
  width: 100%;
  padding: 10px 50px 10px 14px; /* 右邊留出按鈕空間 */
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  font-size: 14px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  transition: var(--transition);
  font-family: inherit;
  height: 42px;
  box-sizing: border-box;
}

/* 定位按鈕樣式 */
.location-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  min-width: 48px;
  height: 32px;
  padding: 0 8px;
  border: none;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(139, 21, 56, 0.2);
  z-index: 10;
  white-space: nowrap;
}

.location-btn:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow: 0 4px 12px rgba(139, 21, 56, 0.3);
}

.location-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.text-input-compact:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139, 21, 56, 0.1);
  background: rgba(255, 255, 255, 0.95);
}

.text-input-compact:disabled {
  background: var(--background);
  color: var(--text-light);
  cursor: not-allowed;
}

.text-input-compact::placeholder {
  color: var(--text-light);
  font-size: 13px;
}

/* 交通方式區域 */
.transport-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center; /* 垂直置中 */
}

.transport-section > label {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.radio-group {
  display: flex;
  flex-direction: row;
  gap: 16px;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: 2px solid rgba(139, 21, 56, 0.1);
  background: rgba(255, 255, 255, 0.8);
  flex: 1;
  justify-content: center;
  min-height: 42px;
  box-sizing: border-box;
}

.radio-option:hover {
  background: rgba(139, 21, 56, 0.08);
  border-color: rgba(139, 21, 56, 0.2);
}

.radio-option:has(input:checked) {
  background: rgba(139, 21, 56, 0.1);
  border-color: var(--primary);
}

.radio-option input[type="radio"] {
  margin: 0;
  width: 18px;
  height: 18px;
}

.radio-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

/* Logo 區域 */
.logo-section {
  text-align: center;
  margin-bottom: 20px;
}

.logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  flex-wrap: nowrap;
  width: 100%;
}

.logo-img {
  max-height: 50px;
  max-width: 100px;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
  flex: 1;
  min-width: 0;
}

.logo-img:hover {
  transform: scale(1.05);
}

/* Logo 超連結樣式 */
.logo-container a {
  display: inline-block;
  text-decoration: none;
  transition: all 0.3s ease;
}

.logo-container a:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
}

.logo-container a:focus {
  outline: none;
}

/* 使用說明按鈕區域 */
.button-section {
  text-align: center;
  margin-bottom: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.help-mode-btn {
  background: #8B0000;
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(139, 0, 0, 0.3);
  min-width: 150px;
}

.help-mode-btn:hover {
  background: #A00000;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(139, 0, 0, 0.4);
}

.help-mode-btn:active {
  transform: translateY(0);
}


/* 距離限制區域（縮小版） */
.distance-limit-section {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: rgba(139, 21, 56, 0.03);
  border-radius: var(--border-radius);
  border: 2px solid rgba(139, 21, 56, 0.1);
  height: 48px;
  box-sizing: border-box;
}

.toggle-container-small {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toggle-container-small .toggle-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}

.toggle-switch-small {
  position: relative;
  width: 36px;
  height: 18px;
  background: var(--border);
  border-radius: 9px;
  transition: var(--transition);
}

.toggle-slider-small {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  transition: var(--transition);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.toggle-input:checked + .toggle-label .toggle-switch-small {
  background: var(--primary);
}

.toggle-input:checked + .toggle-label .toggle-slider-small {
  transform: translateX(18px);
}

.slider-container-small {
  flex: 1;
  animation: slideDown 0.3s ease-out;
  overflow: hidden;
}

.slider-wrapper-small {
  padding: 0;
}

.slider-group-small {
  display: flex;
  align-items: center;
  gap: 8px;
}

.slider-small {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.slider-small::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.slider-min-small, .slider-max-small, .slider-value-small {
  font-size: 10px;
  color: var(--text-light);
  white-space: nowrap;
}

.slider-value-small {
  font-weight: 600;
  color: var(--primary);
  min-width: 50px;
  text-align: center;
}

/* 導航設定按鈕組 */
.nav-buttons-group {
  position: fixed;
  bottom: 120px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
}

.btn-primary-floating,
.btn-secondary-floating {
  padding: 8px 16px;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
  min-width: 100px;
  text-align: center;
}

.btn-primary-floating {
  background: linear-gradient(135deg, #8B1538 0%, #6B0F2A 100%);
  color: white;
  box-shadow: 0 3px 10px rgba(139, 21, 56, 0.4);
}

.btn-primary-floating:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(139, 21, 56, 0.6);
}

.btn-secondary-floating {
  background: white;
  color: #8B1538;
  border: 2px solid #8B1538;
  box-shadow: 0 3px 10px rgba(139, 21, 56, 0.2);
}

.btn-secondary-floating:hover {
  transform: translateY(-2px);
  background: #8B1538;
  color: white;
  box-shadow: 0 5px 15px rgba(139, 21, 56, 0.4);
}

/* 路徑比較按鈕 (右下角) */
.route-comparison-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  border: none;
  border-radius: 50px;
  padding: 16px 24px;
  box-shadow: 0 8px 25px rgba(139, 21, 56, 0.3), 0 4px 10px rgba(139, 21, 56, 0.2);
  cursor: pointer;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.route-comparison-btn:hover:not(.disabled) {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(139, 21, 56, 0.4), 0 6px 15px rgba(139, 21, 56, 0.3);
}

.route-comparison-btn.disabled {
  background: rgba(139, 21, 56, 0.3);
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
  box-shadow: 0 4px 15px rgba(139, 21, 56, 0.2);
}

.route-comparison-btn.available {
  animation: routeBtnPulse 2s infinite;
}

.route-btn-icon {
  font-size: 20px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.route-btn-text {
  font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* 路徑比較按鈕動畫 */
@keyframes routeBtnPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 8px 25px rgba(139, 21, 56, 0.3), 0 4px 10px rgba(139, 21, 56, 0.2);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(139, 21, 56, 0.5), 0 6px 15px rgba(139, 21, 56, 0.4);
  }
}

/* 路徑比較彈窗 */
.route-comparison-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: none;
  pointer-events: none; /* 預設不接收點擊事件 */
}

.route-comparison-modal.show {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 120px 40px 20px 20px;
}

.route-modal-content {
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15), 0 4px 10px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  margin: 0;
  animation: modalFadeIn 0.3s ease-out;
  border: 1px solid rgba(0, 0, 0, 0.1);
  pointer-events: auto; /* 彈窗內容可以接收點擊事件 */
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.route-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: #f8f9fa;
  border-bottom: 1px solid #e9ecef;
  border-radius: 12px 12px 0 0;
}

.route-modal-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #333;
  font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.close-btn:hover {
  background: rgba(139, 21, 56, 0.1);
  color: var(--primary);
}

.route-modal-body {
  padding: 20px;
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

/* 彈窗動畫 */
@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes modalSlideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.left-panel .handle-icon {
  font-size: 20px;
  margin-right: 10px;
}

.left-panel .handle-text,
.bottom-panel .handle-text {
  font-size: 18px;
  font-weight: 700 !important;
  color: var(--text);
  text-align: center;
  margin-right: 10px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.left-panel .handle-arrow,
.bottom-panel .handle-arrow {
  font-size: 18px;
  color: var(--muted);
  transition: var(--transition);
}

.left-panel.expanded .handle-arrow {
  transform: rotate(180deg);
}

.bottom-panel.expanded .handle-arrow {
  transform: rotate(180deg);
}

.bottom-panel .panel-content {
  padding: 20px 18px;
  height: calc(100% - 60px);
  overflow-x: auto;
  overflow-y: auto; /* 允許垂直滾動 */
  width: 100%;
  box-sizing: border-box;
  margin-top: 15px;
}

/* 表單元素 */
.input-group {
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 140px;
}

.input-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 15px;
}

.input-with-coords {
  position: relative;
}

.text-input, .select {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  font-size: 14px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  transition: var(--transition);
  font-family: inherit;
}

.text-input:focus, .select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(139, 21, 56, 0.15);
  background: rgba(255, 255, 255, 0.95);
}

.text-input:disabled {
  background: var(--background);
  color: var(--text-light);
  cursor: not-allowed;
}

.coords-text {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  color: var(--text-light);
  pointer-events: none;
  background: rgba(255, 255, 255, 0.9);
  padding: 1px 3px;
  border-radius: 3px;
}

/* 按鈕 */
.button-group {
  display: none; /* 舊的按鈕組已移到右側 */
}

.btn {
  flex: 1;
  padding: 12px 18px;
  border: none;
  border-radius: var(--border-radius);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
  text-transform: none;
  letter-spacing: 0.01em;
  height: 42px;
  min-width: 100px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  box-shadow: var(--shadow-strong);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(139, 21, 56, 0.35), 0 4px 8px rgba(139, 21, 56, 0.2);
}

.btn-primary:disabled {
  background: var(--muted);
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* 開關切換 */
.toggle-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.toggle-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  gap: 12px;
}

.toggle-input {
  display: none;
}

.toggle-switch {
  position: relative;
  width: 48px;
  height: 24px;
  background: var(--border);
  border-radius: 12px;
  transition: var(--transition);
}

.toggle-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--surface);
  border-radius: 50%;
  transition: var(--transition);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-input:checked + .toggle-label .toggle-switch {
  background: var(--primary);
}

.toggle-input:checked + .toggle-label .toggle-slider {
  transform: translateX(24px);
}

/* 滑桿 */
.slider-container {
  animation: slideDown 0.3s ease-out;
  overflow: hidden;
  width: 100%;
  margin-top: 8px;
}

.slider-wrapper {
  padding: 8px 0;
}

.slider-group {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 12px 0;
}

.slider {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.slider::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.slider-min, .slider-max {
  font-size: 12px;
  color: var(--text-light);
  min-width: 40px;
  text-align: center;
}

.slider-value-display {
  text-align: center;
  margin-top: 8px;
}

#slider-value {
  font-weight: 600;
  color: var(--primary);
}

@keyframes slideDown {
  from {
    max-height: 0;
    opacity: 0;
  }
  to {
    max-height: 200px;
    opacity: 1;
  }
}

/* 儀表板樣式 */
.dashboard-container {
  margin-top: 12px;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: visible; /* 允許內容自然顯示 */
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: repeat(3, auto);
  gap: 12px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

/* 電腦版導航模式：橫向長條佈局 */
@media (min-width: 769px) {
  .route-comparison-modal .dashboard-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(3, auto);
    gap: 12px;
  }
  
  /* 改善效益卡片：橫向長條 */
  .route-comparison-modal .dashboard-card:first-child {
    display: flex;
    flex-direction: row;
    align-items: center;
    min-height: 60px;
    padding: 12px 16px;
  }
  
  /* 距離比較和時間比較卡片：垂直佈局 */
  .route-comparison-modal .dashboard-card:not(:first-child) {
    display: flex;
    flex-direction: column;
    padding: 12px;
    min-height: 90px;
  }
  
  .route-comparison-modal .dashboard-card:not(:first-child) .card-title {
    margin-bottom: 8px;
    text-align: left;
  }
  
  .route-comparison-modal .dashboard-card:not(:first-child) .comparison-bars {
    margin-bottom: 8px;
  }
}

.dashboard-card {
  background: white;
  border-radius: 18px; /* 更圓角 */
  padding: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow: hidden;
  min-height: 80px;
}

/* 除了暴露改善以外其他卡片加灰邊框 */
.dashboard-card:not(.combined-improvement-card) {
  border: 1px solid rgba(0, 0, 0, 0.2); /* 邊框加深 */
}

.dashboard-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 合併改善效益卡片 */
.combined-improvement-card {
  background: linear-gradient(135deg, #87CEEB 0%, #B0E0E6 100%);
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(135, 206, 235, 0.4);
  position: relative;
  overflow: hidden;
}

.combined-improvement-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: rotate(45deg);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
  100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.combined-improvement-card .card-title {
  color: black !important;
  font-weight: 700;
  text-shadow: none !important;
}

.combined-improvement-card .help-icon-btn {
  background: rgba(0, 0, 0, 0.1);
  color: #333;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.combined-improvement-card .help-icon-btn:hover {
  background: rgba(0, 0, 0, 0.2);
  transform: scale(1.1);
}

.combined-improvement-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  height: 100%;
  min-height: 60px;
}

.improvement-section, .distance-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
}

.improvement-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4A90E2 0%, #7BB3F0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
  box-shadow: 0 4px 20px rgba(74, 144, 226, 0.4);
  animation: pulse 2s infinite;
  position: relative;
}

.improvement-circle::before {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4A90E2, #7BB3F0);
  opacity: 0.3;
  animation: ripple 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes ripple {
  0% { transform: scale(0.8); opacity: 0.3; }
  100% { transform: scale(1.2); opacity: 0; }
}

.improvement-percentage {
  font-size: 18px;
  font-weight: 800;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  animation: numberGlow 2s infinite alternate;
}

@keyframes numberGlow {
  0% { text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3); }
  100% { text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 0 0 10px rgba(255, 255, 255, 0.5); }
}

.improvement-label, .distance-label {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.divider-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.5), transparent);
  margin: 0 16px;
  position: relative;
}

.divider-line::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.distance-value-container {
  display: flex;
  align-items: baseline;
  margin-bottom: 8px;
}

.distance-value {
  font-size: 24px;
  font-weight: 800;
  color: #4ecdc4;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  animation: distanceGlow 2s infinite alternate;
  line-height: 1;
}

@keyframes distanceGlow {
  0% { text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3); }
  100% { text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 0 0 15px rgba(78, 205, 196, 0.6); }
}

.distance-unit {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  margin-left: 4px;
}

.combined-improvement-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

/* 簡化版改善效益顯示 */
.improvement-display-simple {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  padding: 2px 16px 6px 16px;
  height: 100%;
  min-height: 40px;
  gap: 12px;
}

.improvement-circle-large {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4A90E2 0%, #7BB3F0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  box-shadow: 0 4px 15px rgba(74, 144, 226, 0.6), 0 0 25px rgba(74, 144, 226, 0.4);
  animation: pulse 2s infinite;
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.improvement-circle-large::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4A90E2, #7BB3F0);
  opacity: 0.5;
  animation: ripple 2s infinite;
}

.improvement-percentage-large {
  font-size: 20px;
  font-weight: 900;
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 255, 255, 0.9);
  animation: numberGlow 2s infinite alternate;
  letter-spacing: 0.5px;
}

.improvement-label-large {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4), 0 0 8px rgba(255, 255, 255, 0.6);
  text-align: left;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  white-space: nowrap;
}

/* 背景裝飾元素 */
.improvement-display-simple::after {
  content: '✨';
  font-size: 16px;
  animation: sparkle 2s infinite;
  opacity: 0.7;
  position: absolute;
  top: 8px;
  right: 8px;
}

@keyframes sparkle {
  0%, 100% { 
    transform: scale(1) rotate(0deg);
    opacity: 0.6;
  }
  50% { 
    transform: scale(1.3) rotate(180deg);
    opacity: 1;
  }
}

/* 改善率卡片懸停效果 */
.improvement-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15), 0 8px 20px rgba(0, 0, 0, 0.08);
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 8px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 比較長條圖 */
.comparison-bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

/* 距離增加資訊 */
.distance-increase-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 12px;
  padding: 8px 12px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 6px;
  border: 1px solid #dee2e6;
}

.increase-label {
  font-size: 12px;
  font-weight: 600;
  color: #6c757d;
}

.increase-value {
  font-size: 16px;
  font-weight: 700;
  color: #2BB1AA;
}

.increase-unit {
  font-size: 12px;
  font-weight: 500;
  color: #6c757d;
}

.bar-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.route-type {
  font-weight: 500;
  font-size: 16px;
}

.route-type.shortest {
  color: #3C3C9A;
}

.route-type.lowest {
  color: #2BB1AA;
}

.route-value {
  font-weight: 600;
  font-size: 17px;
}

.progress-bar {
  height: 10px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 5px;
  overflow: hidden;
  position: relative;
  width: 100%;
}

.progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  background: linear-gradient(90deg, #4CAF50 0%, #45a049 100%);
}

.progress-fill.shortest {
  background: linear-gradient(90deg, #3C3C9A 0%, #2D2D7A 100%);
}

.progress-fill.lowest {
  background: linear-gradient(90deg, #2BB1AA 0%, #1A9B94 100%);
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* 數值顯示卡片 */
.metric-display {
  text-align: center;
  padding: 8px 0;
  width: 100%;
  box-sizing: border-box;
}

.metric-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}

.metric-unit {
  font-size: 10px;
  color: rgba(0, 0, 0, 0.6);
  margin-bottom: 4px;
}

.metric-label {
  font-size: 9px;
  color: rgba(0, 0, 0, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* 改善率圓形進度條 */
.improvement-card {
  background: #f0f9ff;
  border: 1px solid #0ea5e9;
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.15);
}

/* 改善率大數字動畫設計 */
.improvement-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 80px;
  padding: 12px;
  width: 100%;
  box-sizing: border-box;
}

.improvement-number-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 100%;
  width: 100%;
}

.improvement-number {
  font-size: 36px;
  font-weight: 900;
  color: #2BB1AA;
  line-height: 1;
  text-align: center;
  text-shadow: 0 2px 4px rgba(43, 177, 170, 0.4);
  background: linear-gradient(135deg, #2BB1AA 0%, #1A9B94 50%, #0F8B84 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: numberGlow 2.5s ease-in-out infinite alternate, numberPulse 3s ease-in-out infinite;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70px;
}

@keyframes numberGlow {
  0% {
    text-shadow: 0 3px 6px rgba(16, 185, 129, 0.4);
    transform: scale(1);
  }
  100% {
    text-shadow: 0 6px 12px rgba(16, 185, 129, 0.7), 0 0 25px rgba(16, 185, 129, 0.5);
    transform: scale(1.05);
  }
}

@keyframes numberPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}

.improvement-subtitle {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* 錯誤提示 */
.error-card {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--error);
  color: white;
  padding: 16px 20px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 1100;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 400px;
}

.error-close {
  background: none;
  border: none;
  color: white;
  font-size: 16px;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
}

/* 模態框 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 150px;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: var(--surface);
  border-radius: 12px;
  max-width: 500px;
  max-height: 70vh;
  width: 85%;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease-out;
  border: 1px solid rgba(139, 21, 56, 0.1);
}

.modal-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.close-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-light);
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}

.close-btn:hover {
  background: var(--background);
}

.modal-body {
  padding: 20px;
  max-height: calc(70vh - 100px);
  overflow-y: auto;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 響應式設計 */

/* 桌面版：保持一行布局 */
@media (min-width: 769px) {
  .app-header {
    flex-direction: row; /* 水平排列 */
    align-items: center; /* 垂直置中 */
  }
  
  .header-row-1 {
    display: contents; /* 讓子元素直接參與 flex 布局 */
  }
  
  .header-row-2 {
    display: contents; /* 讓子元素直接參與 flex 布局 */
  }
  
  .header-left {
    flex: 1; /* 佔據剩餘空間 */
    order: 1; /* 最左側 */
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .header-logo {
    display: flex;
    align-items: center;
    margin-right: 8px;
  }
  
  .main-logo-img {
    height: 48px;
    width: auto;
    max-width: 72px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
  }
  
  .header-center {
    order: 2; /* 中間 */
    margin: 0 auto; /* 自動置中 */
    flex: 0 0 auto; /* 不伸縮，保持固定大小 */
  }
  
  .header-right {
    display: flex;
    gap: 12px;
    align-items: center;
    order: 3; /* 最右側 */
    flex: 1; /* 佔據剩餘空間 */
    justify-content: flex-end; /* 右側對齊 */
  }
  
  /* 桌面版：隱藏手機版布局，顯示原版布局 */
  .mobile-nav-layout {
    display: none !important;
    visibility: hidden !important;
  }
  
  .main-row {
    display: block !important;
    visibility: visible !important;
  }
  
  /* 桌面版交通方式布局 */
  .transport-row-desktop {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px;
    margin-top: 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--input-bg);
  }
  
  .transport-label-desktop {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
  }
  
  .radio-group-desktop {
    display: flex;
    gap: 16px;
  }
  
  .radio-option-desktop {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
  }
  
  .radio-option-desktop input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
  }
  
  .radio-option-desktop .radio-text {
    font-size: 16px;
    color: var(--text-primary);
  }
}

@media (max-width: 768px) {
  .app-header {
    padding: 12px 16px; /* 調整 padding */
    min-height: auto; /* 自動高度 */
    flex-direction: column; /* 改為垂直排列 */
    align-items: stretch; /* 拉伸對齊 */
    gap: 8px; /* 行間距 */
  }
  
  /* 手機版第一行：標題 + 右側按鈕 */
  .header-row-1 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }
  
  .header-left h1 {
    font-size: 18px;
    margin: 0; /* 移除底部間距 */
  }
  
  /* 手機版縮小按鈕 */
  .help-btn {
    padding: 3px 5px !important;
    font-size: 9px !important;
    min-width: auto !important;
  }
  
  .help-btn .help-text {
    font-size: 8px !important;
    display: none !important; /* 隱藏文字，只顯示圖標 */
  }
  
  /* 手機版縮小語言切換器 */
  .language-switcher {
    font-size: 8px !important;
  }
  
  .language-switcher button {
    padding: 2px 4px !important;
    font-size: 7px !important;
    min-width: 18px !important;
    height: 20px !important;
  }
  
  .main-logo-img {
    height: 32px; /* 手機版放大 */
    max-width: 48px;
  }
  
  /* 手機版標題 */
  .header-left h1 {
    font-size: 20px !important; /* 縮小：從 28px 調整 */
    margin: 0;
    line-height: 1.2;
  }
  
  /* 手機版縮小 Header 左側間距 */
  .header-left {
    gap: 8px !important;
    flex-wrap: nowrap !important; /* 防止 flex 項目換行 */
  }
  
  /* 手機版縮小測試版文字 */
  .beta-text {
    font-size: 8px !important;
    font-weight: 400 !important;
  }
  
  /* 手機版縮小地圖元件 */
  .leaflet-control-zoom {
    transform: scale(0.8) !important;
  }
  
  /* 手機版縮小圖例並下移 */
  .map-legend {
    transform: scale(0.7) !important; /* 縮小更多 */
    top: 270px !important; /* 套用電腦版間距關係 */
    left: 5px !important; /* 圖例再往左一點點 */
  }
  
  .leaflet-control-zoom a {
    width: 28px !important;
    height: 28px !important;
    line-height: 26px !important;
    font-size: 16px !important;
  }
  
  /* 手機版縮小底圖樣式選單 */
  .map-tile-selector {
    transform: scale(0.8) !important;
    top: 85px !important; /* 套用電腦版間距關係 */
    left: 10px !important; /* 再靠左一點 */
  }
  
  .tile-selector-button {
    padding: 8px 10px !important;
    font-size: 11px !important;
  }
  
  /* 手機版縮小疊加圖層面板 */
  .map-overlay-selector {
    transform: scale(0.8) !important;
    top: 125px !important; /* 套用電腦版間距關係 */
    left: 10px !important; /* 再靠左一點 */
  }
  
  .map-overlay-selector h4 {
    font-size: 12px !important;
    margin: 0 0 10px 0 !important;
  }
  
  .overlay-option {
    font-size: 11px !important;
    gap: 6px !important;
  }
  
  /* 手機版導航按鈕組 */
  .nav-buttons-group {
    bottom: 80px !important;
    right: 20px !important;
  }
  
  .btn-primary-floating,
  .btn-secondary-floating {
    padding: 6px 12px !important;
    font-size: 11px !important;
    min-width: 80px !important;
  }

  /* 手機版導航模式路徑比較彈窗：與電腦版相同的佈局 */
  .route-comparison-modal .dashboard-grid {
    grid-template-columns: 1fr !important;
    grid-template-rows: repeat(3, auto) !important;
    gap: 12px !important;
  }
  
  /* 改善效益卡片：橫向長條 */
  .route-comparison-modal .dashboard-card:first-child {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    min-height: 60px !important;
    padding: 12px 16px !important;
  }
  
  /* 距離比較和時間比較卡片：垂直佈局 */
  .route-comparison-modal .dashboard-card:not(:first-child) {
    display: flex !important;
    flex-direction: column !important;
    padding: 12px !important;
    min-height: 90px !important;
  }
  
  .route-comparison-modal .dashboard-card:not(:first-child) .card-title {
    margin-bottom: 8px !important;
    text-align: left !important;
  }
  
  .route-comparison-modal .dashboard-card:not(:first-child) .comparison-bars {
    margin-bottom: 8px !important;
  }

  /* 手機版路徑比較按鈕 */
  .route-comparison-btn {
    bottom: 20px !important;
    right: 20px !important;
    padding: 12px 18px !important;
    font-size: 14px !important;
    gap: 8px !important;
  }
  
  .route-btn-icon {
    font-size: 16px !important;
  }

  /* 手機版路徑比較彈窗 */
  .route-modal-content {
    max-height: 85vh !important;
    margin-bottom: 0 !important;
  }
  
  .route-comparison-modal.show {
    padding: 120px 10px 40px 10px !important;
  }
  
  .route-modal-content {
    max-width: 95% !important;
    margin: 0 !important;
  }
  
  .route-modal-header {
    padding: 12px 16px !important;
  }
  
  .route-modal-header h3 {
    font-size: 16px !important;
  }

  /* 手機版：捷運線卡片比例縮小 */
  .metro-lines-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)) !important;
    gap: 8px !important;
  }
  .line-card-content { padding: 14px !important; }
  .line-card-name { font-size: 16px !important; }
  .line-card-stations { font-size: 11px !important; }
  .line-card-code { font-size: 12px !important; padding: 4px 10px !important; }
  .line-card-arrow { font-size: 14px !important; }

  /* 手機版：站點清單彈窗比例縮小 */
  .stations-modal { width: 92vw !important; padding: 8px !important; }
  .stations-header { padding: 12px 14px !important; }
  .stations-header h3 { font-size: 16px !important; }
  .close-stations-btn { font-size: 16px !important; }
  .station-card { padding: 10px 12px !important; }
  .station-card-name { font-size: 12px !important; }
  .station-card-code { font-size: 12px !important; }

  /* 手機版：解算成果彈窗元素比例縮小 */
  .route-result-modal .modal-content { padding: 10px !important; }
  .route-result-modal .card-title { font-size: 14px !important; }
  .route-result-modal .comparison-bars .route-value { font-size: 12px !important; }
  .route-result-modal .radio-label { font-size: 12px !important; }

  /* 手機版：選出口和景點彈窗比例縮小 */
  .exit-modal-content { width: 92vw !important; padding: 8px !important; }
  .exit-modal-header { padding: 12px 14px !important; }
  .exit-modal-header h3 { font-size: 16px !important; }
  .close-exit-modal { font-size: 16px !important; }
  .exit-modal-body { padding: 14px !important; }
  .exit-section h5, .attraction-section h5 { font-size: 14px !important; }
  .exit-btn, .attraction-btn { padding: 10px 12px !important; font-size: 13px !important; }
  .attraction-icon { font-size: 14px !important; }

  /* 手機版捷運模式：改善效益資訊卡樣式與電腦版一致 */
  .route-result-modal .result-dashboard-card.result-combined-improvement-card {
    background: #ffffff !important;
    border: 6px solid #4CAF50 !important;
    border-radius: 18px !important;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08) !important;
    padding: 12px 16px !important;
  }
  .route-result-modal .result-combined-improvement-card .card-title {
    color: #000 !important;
    font-weight: 700 !important;
  }
  .route-result-modal .result-combined-improvement-card .help-icon-btn {
    background: rgba(0,0,0,0.1) !important;
    color: #333 !important;
    border: 1px solid rgba(0,0,0,0.15) !important;
  }
  .route-result-modal .combined-improvement-display,
  .route-result-modal .improvement-display-simple {
    padding: 12px 0 !important;
    min-height: 80px !important;
  }
  .route-result-modal .improvement-circle {
    width: 60px !important;
    height: 60px !important;
  }
  .route-result-modal .improvement-percentage {
    font-size: 18px !important;
    font-weight: 800 !important;
  }
  
  .route-modal-body {
    padding: 16px !important;
    max-height: calc(85vh - 80px) !important;
  }

  /* 手機版調整面板把手寬度 */
  .left-panel .panel-handle {
    width: 180px !important; /* 統一寬度 */
  }
  
  .header-right {
    display: flex;
    gap: 2px;
    align-items: center;
  }
  
  /* 手機版第二行：Logo + 模式切換 */
  .header-row-2 {
    display: flex;
    justify-content: space-between; /* Logo 左邊，模式切換置中 */
    align-items: center;
    width: 100%;
  }
  
  .header-center {
    width: auto;
  }
  
  /* 手機版第二行的 Logo */
  .header-row-2 .header-logo {
    display: flex;
    align-items: center;
  }
  
  /* 手機版模式切換器 - 水平排列 */
  .mode-switch {
    flex-direction: row; /* 改為水平排列 */
    gap: 8px; /* 按鈕間距 */
  }
  
  /* 手機版模式按鈕調整 */
  .mode-btn {
    padding: 10px 20px; /* 調整按鈕大小 */
    font-size: 16px;
    white-space: nowrap; /* 防止文字換行 */
    text-align: center; /* 文字置中 */
    min-width: 80px; /* 最小寬度 */
  }
  
  /* 手機版：頂部面板調整 - 自適應 Header 高度 */
  .left-panel {
    position: fixed;
    top: calc(80px + var(--header-height, 80px)); /* 動態計算 Header 高度 */
    left: 0;
    right: 0;
    width: 100vw;
    height: auto;
    max-height: calc(100vh - 140px); /* 預留 Header 和底部空間 */
    transform: translateY(-100%);
    z-index: 1000;
    transition: top 0.3s ease, transform 0.3s ease; /* 平滑過渡 */
  }
  
  /* 確保手機版面板把手樣式與底部面板一致 */
  .left-panel .panel-handle {
    background: var(--card-bg) !important;
    backdrop-filter: saturate(200%) blur(18px) !important;
    border: 1px solid var(--border) !important;
    border-radius: 0 0 var(--border-radius) var(--border-radius) !important;
  }
  
  .left-panel.expanded {
    transform: translateY(0);
  }
  
  /* 手機版四行導航布局 */
  .mobile-nav-layout {
    display: flex;
    flex-direction: column;
    gap: 6px; /* 進一步減少行間距 */
    padding: 8px; /* 進一步減少內邊距 */
  }
  
  .nav-row {
    width: 100%;
  }
  
  /* 第一行和第二行：輸入框 */
  .nav-row-1, .nav-row-2 {
    display: flex;
    align-items: center;
  }
  
  .text-input-mobile {
    width: 100%;
    padding: 6px 50px 6px 16px; /* 右邊留出按鈕空間 */
    font-size: 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: all 0.2s ease;
    height: 36px; /* 進一步減少高度 */
  }
  
  .text-input-mobile:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(220, 38, 127, 0.1);
  }
  
  /* 手機版定位按鈕樣式 */
  .location-btn {
    min-width: 40px !important;
    height: 28px !important;
    font-size: 10px !important;
    padding: 0 6px !important;
    right: 6px !important;
  }
  
  /* 手機版標籤樣式 */
  .input-label {
    font-size: 12px !important;
    padding: 4px 8px !important;
    min-width: 40px !important;
  }
  
  /* 第三行：交通方式 */
  .nav-row-3 {
    display: flex;
    align-items: center;
  }
  
  .transport-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px; /* 添加內邊距 */
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--input-bg);
  }
  
  .transport-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
  }
  
  .radio-group-mobile {
    display: flex;
    gap: 16px;
  }
  
  .radio-option-mobile {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
  }
  
  .radio-option-mobile input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
  }
  
  .radio-text {
    font-size: 16px;
    color: var(--text-primary);
  }
  
  .btn-primary-mobile {
    background: #8B0000 !important; /* 酒紅色 */
    color: white !important;
    border: 2px solid #8B0000 !important;
  }
  
  .btn-primary-mobile:hover {
    background: #660000 !important; /* 深酒紅色 */
    transform: translateY(-1px);
  }
  
  .btn-secondary-mobile {
    background: var(--secondary-color);
    color: var(--text-primary);
  }
  
  .btn-secondary-mobile:hover {
    background: var(--secondary-hover);
    transform: translateY(-1px);
  }
  
  /* 手機版：隱藏原版布局 */
  .main-row, .distance-limit-section {
    display: none;
  }
  
  .left-panel .panel-handle {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px; /* 手機版較窄 */
    height: 40px;
  }
  
  /* 手機版地圖調整 */
  .fullscreen-map {
    top: 90px; /* 調整為新的 header 高度 */
    bottom: 0; /* 延展到底部 */
  }
  
  /* 手機版輸入欄並排顯示 */
  .address-section {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
  }
  
  .address-group {
    flex: 1;
  }
  
  .text-input-compact {
    padding: 14px 16px;
    font-size: 16px; /* 手機版字體更大 */
    border-radius: 12px;
  }
  
  .coords-text {
    font-size: 12px;
    margin-top: 4px;
  }
  
  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
    gap: 12px;
  }
  
  .dashboard-card {
    padding: 8px;
  }
  
  .combined-improvement-display {
    padding: 12px 0;
    min-height: 80px;
  }
  
  .improvement-circle {
    width: 60px;
    height: 60px;
  }
  
  .improvement-percentage {
    font-size: 18px;
  }
  
  .distance-value {
    font-size: 24px;
  }
  
  .divider-line {
    height: 40px;
    margin: 0 12px;
  }
  
  .card-title {
    font-size: 12px;
  }
  
  .metric-value {
    font-size: 18px;
  }
  
  .improvement-number {
    font-size: 28px;
  }
  
  .improvement-display {
    min-height: 60px;
  }
  
  .improvement-circle {
    width: 100px;
    height: 100px;
  }
}

/* 超小螢幕 - 單列顯示 */
@media (max-width: 480px) {
  /* 超小螢幕頂部面板調整 */
  .left-panel {
    max-height: 60vh; /* 更小的最大高度 */
  }
  
  .left-panel .panel-handle {
    width: 150px; /* 更窄的把手 */
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 10px;
  }
  
  .dashboard-card {
    padding: 6px;
  }
  
  .combined-improvement-display {
    padding: 8px 0;
    min-height: 60px;
  }
  
  .improvement-circle {
    width: 50px;
    height: 50px;
  }
  
  .improvement-percentage {
    font-size: 16px;
  }
  
  .distance-value {
    font-size: 20px;
  }
  
  .divider-line {
    height: 30px;
    margin: 0 8px;
  }
  
  .card-title {
    font-size: 11px;
  }
  
  .metric-value {
    font-size: 16px;
  }
  
  .improvement-number {
    font-size: 24px;
  }
  
  .improvement-display {
    min-height: 50px;
  }
  
  .bottom-panel .panel-content {
    padding: 12px 16px;
    overflow-y: auto; /* 確保手機版可以滾動 */
    -webkit-overflow-scrolling: touch; /* iOS 平滑滾動 */
  }
  
  .improvement-percentage {
    font-size: 20px;
  }
  
  .modal-content {
    width: 95%;
    max-height: 65vh; /* 進一步減少高度 */
    margin: 5px; /* 進一步減少邊距 */
    bottom: 40px; /* 下緣大幅上提 */
  }
  
  .modal-body {
    padding: 12px; /* 減少內邊距 */
    max-height: calc(65vh - 80px); /* 配合 modal-content 的高度調整 */
  }
  
  /* 手機版其他彈窗調整 */
  .exit-modal-content {
    max-height: 65vh !important;
    margin: 5px !important;
    bottom: 40px !important;
  }
  
  .stations-modal {
    max-height: 65vh !important;
    margin: 5px !important;
    bottom: 40px !important;
  }
  
  .route-result-modal .modal-content {
    max-height: 65vh !important;
    margin: 5px !important;
    bottom: 40px !important;
  }
  
  /* 手機版彈窗字體縮小 */
  .modal-header h3 {
    font-size: 14px !important;
  }
  
  .modal-body {
    font-size: 13px !important;
  }
  
  .modal-body h4 {
    font-size: 14px !important;
  }
  
  .modal-body p {
    font-size: 12px !important;
    line-height: 1.4 !important;
  }
  
  .modal-body button {
    font-size: 12px !important;
    padding: 8px 12px !important;
  }
}

@media (max-width: 480px) {
  /* 保留模式切換，但調整大小 */
  .mode-switch {
    display: flex;
    gap: 6px;
  }
  
  .mode-btn {
    padding: 6px 10px;
    font-size: 12px;
  }
  
  .header-right {
    gap: 8px;
  }
  
  .help-btn {
    padding: 6px 8px;
    font-size: 11px;
  }
  
  .lang-btn {
    padding: 6px 8px;
    font-size: 11px;
  }
}

/* 捷運模式樣式 */
.mode-panel {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: none;
}

.mode-panel.active {
  display: block !important;
}

/* 桌機版整頁縮放 75%（Chrome/Edge） */
@media (min-width: 1024px) {
  html { zoom: 0.8; }
}

/* Firefox fallback：當不支援 zoom 時，用 transform 縮放 */
@supports not (zoom: 1) {
  @media (min-width: 1024px) {
    body {
      transform: scale(0.8);
      transform-origin: 0 0;
      width: calc(100% / 0.8);
      height: calc(100% / 0.8);
    }
  }
}

#metro-panel {
  background: var(--background);
  width: 100%;
  height: 100%;
  overflow: auto;
}

.metro-list-container {
  width: 100%;
  height: 100%;
  padding: 20px;
  box-sizing: border-box;
  overflow-y: auto;
}

.metro-container {
  max-width: 1200px;
  margin: 0 auto;
}

.metro-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 30px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 路線卡片網格 */
.metro-lines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.metro-line-card {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  transition: var(--transition);
  overflow: hidden;
  position: relative;
}

.metro-line-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.metro-line-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--line-color);
}

.line-card-content {
  padding: 24px;
  text-align: center;
}

.line-card-code {
  display: inline-block;
  background: var(--line-color);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 12px;
}

.line-card-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.line-card-stations {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 16px;
}

.line-card-arrow {
  font-size: 18px;
  color: var(--muted);
  transition: transform 0.3s ease;
}

.metro-line-card:hover .line-card-arrow {
  transform: translateX(4px);
}

/* 站點彈出層 */
.stations-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  box-sizing: border-box;
}

.stations-modal {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  max-width: 800px;
  width: 100%;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.stations-header {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--primary);
  color: white;
}

.stations-header h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.close-stations-btn {
  background: none;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}

.close-stations-btn:hover {
  background: rgba(255,255,255,0.2);
}

.stations-grid {
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  max-height: 60vh;
  overflow-y: auto;
}

.station-card {
  background: white;
  border: 2px solid var(--muted);
  border-radius: 8px;
  padding: 16px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  position: relative;
}

.station-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(139, 21, 56, 0.2);
}

.station-card.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.station-card.disabled:hover {
  transform: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.station-card.has-exits {
  border-color: var(--primary);
  background: rgba(139, 21, 56, 0.05);
}

.station-card.has-exits::after {
  content: '●';
  position: absolute;
  top: 8px;
  right: 8px;
  color: var(--primary);
  font-size: 12px;
}

.station-card-code {
  background: var(--muted); /* 默認顏色，會被JavaScript覆蓋 */
  color: var(--text); /* 默認顏色，會被JavaScript覆蓋 */
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 8px;
  transition: all 0.2s ease; /* 添加平滑過渡效果 */
}

.station-card-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}

/* 統一所有中文字體 */
h1, h2, h3, h4, h5, h6,
p, span, div, button, input, select, textarea,
.metro-title, .line-card-name, .station-card-name,
.mode-btn, .btn, .text-input, .label,
.panel-handle, .handle-text, .card-title,
.metro-line-card, .station-card,
.line-card-code, .station-card-code,
.line-card-stations, .stations-header h3,
.close-stations-btn, .line-card-arrow {
  font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif !important;
}


.logo-item img {
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: all 0.3s ease;
  max-width: 180px;
  height: auto;
}

.logo-item img:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* 捷運站樣式 */
.station {
  cursor: pointer;
  transition: all 0.2s ease;
}

.station:hover circle {
  fill: #fff3cd;
  stroke-width: 5;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
}

.station:hover .station-label {
  fill: var(--primary);
  font-weight: 700;
}

.station-label {
  font-size: 16px;
  font-weight: 600;
  fill: var(--text);
  text-anchor: start;
  dominant-baseline: middle;
  pointer-events: none;
  text-rendering: optimizeLegibility;
  shape-rendering: crispEdges;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 捷運線路樣式 */
.metro-line path {
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.red-line path {
  stroke: #e60012;
}

.blue-line path {
  stroke: #0070BD;
}

.green-line path {
  stroke: #008659;
}

/* 出口選擇彈窗 */
.exit-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
}

.exit-modal-content {
  background: var(--card-bg);
  backdrop-filter: saturate(200%) blur(18px);
  border-radius: var(--border-radius);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  box-shadow: var(--shadow-strong);
  animation: slideIn 0.3s ease-out;
}

.exit-modal-header {
  padding: 20px 24px 16px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.exit-modal-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
}

.close-exit-modal {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--muted);
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}

.close-exit-modal:hover {
  background: rgba(139, 21, 56, 0.1);
  color: var(--primary);
}

.exit-modal-body {
  padding: 24px;
}

.selection-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.exit-section h5,
.attraction-section h5 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 16px 0;
}

.exit-buttons,
.attraction-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 可滾動區域樣式 */
.scrollable {
  max-height: 200px;
  overflow-y: auto;
  padding-right: 5px;
}

.scrollable::-webkit-scrollbar {
  width: 6px;
}

.scrollable::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.scrollable::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 3px;
}

.scrollable::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* 導航方式選擇器樣式 */
.transport-mode-selector {
  display: flex;
  flex-direction: row;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
}

.transport-mode-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.radio-group {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* 手機模式導航方式選擇器樣式 */
@media (max-width: 768px) {
  .transport-mode-selector {
    flex-direction: column;
    gap: 8px;
    padding: 10px 12px;
  }
  
  .transport-mode-title {
    font-size: 14px;
    text-align: center;
  }
  
  .radio-group {
    gap: 12px;
  }
  
  /* 捷運模式解算成果彈窗中的導航模式選擇器 - 在標題下方 */
  .route-result-modal .transport-mode-selector {
    display: flex !important;
    flex-direction: row !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 8px 10px !important;
    margin: 8px 10px 12px 10px !important;
    background: var(--card-bg) !important;
    border: 1px solid var(--border) !important;
    border-radius: 6px !important;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1) !important;
  }
  
  .route-result-modal .transport-mode-title {
    font-size: 12px !important;
    text-align: left !important;
    margin: 0 !important;
    font-weight: 600 !important;
    color: var(--text) !important;
  }
  
  .route-result-modal .radio-group {
    display: flex !important;
    flex-direction: row !important;
    gap: 12px !important;
    align-items: center !important;
  }
  
  .route-result-modal .radio-label {
    font-size: 12px !important;
    margin: 0 !important;
  }
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
}

.radio-label input[type="radio"] {
  margin: 0;
  cursor: pointer;
}

.radio-label:hover {
  color: var(--primary);
}

.exit-btn,
.attraction-btn {
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
}

.exit-btn:hover,
.attraction-btn:hover {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-1px);
}

.exit-btn.selected,
.attraction-btn.selected {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: var(--shadow-soft);
}

.attraction-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
}

.attraction-icon {
  font-size: 16px;
}

.navigation-section {
  text-align: center;
  padding-top: 16px;
  border-top: 2px solid var(--border);
}

.nav-btn {
  padding: 16px 32px;
  border: none;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  box-shadow: var(--shadow-strong);
}

.nav-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(139, 21, 56, 0.35), 0 4px 8px rgba(139, 21, 56, 0.2);
}

.nav-btn:disabled {
  background: var(--muted);
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
  box-shadow: none;
}

/* 結果儀表板樣式（捷運模式） */
.result-dashboard-container {
  margin-top: 20px;
  width: 100%;
}

.result-dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: repeat(3, auto);
  gap: 12px;
}

/* 電腦版捷運模式：3:2橫向長方形三塊並排 */
@media (min-width: 769px) {
  .route-comparison-modal .result-dashboard-grid,
  .route-result-modal .result-dashboard-grid {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    grid-template-rows: 1fr !important;
    gap: 16px !important;
    width: 100% !important;
    max-width: 700px !important;
  }
  
  .route-comparison-modal .result-dashboard-card,
  .route-result-modal .result-dashboard-card {
    aspect-ratio: 3/2;
    min-height: auto;
    height: auto;
    width: auto;
  }
  
  /* 改善效益卡片：有標題的橫向長條 */
  .route-comparison-modal .result-dashboard-card:first-child,
  .route-result-modal .result-dashboard-card:first-child {
    display: flex;
    flex-direction: column;
    padding: 12px;
    min-height: 90px !important; /* Added !important to override global rule */
    background: linear-gradient(135deg, #87CEEB 0%, #B0E0E6 100%);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(135, 206, 235, 0.4);
  }
  
  .route-comparison-modal .result-dashboard-card:first-child .card-title,
  .route-result-modal .result-dashboard-card:first-child .card-title {
    margin-bottom: 12px;
    text-align: left;
    color: white;
    font-size: 14px;
  }
  
  .route-comparison-modal .result-dashboard-card:first-child .improvement-display-simple,
  .route-result-modal .result-dashboard-card:first-child .improvement-display-simple {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex: 1;
  }
  
  /* 距離比較和時間比較卡片：垂直佈局 */
  .route-comparison-modal .result-dashboard-card:not(:first-child),
  .route-result-modal .result-dashboard-card:not(:first-child) {
    display: flex;
    flex-direction: column;
    padding: 12px;
    min-height: 90px;
  }
  
  .route-comparison-modal .result-dashboard-card:not(:first-child) .card-title,
  .route-result-modal .result-dashboard-card:not(:first-child) .card-title {
    margin-bottom: 8px;
    text-align: left;
  }
  
  .route-comparison-modal .result-dashboard-card:not(:first-child) .comparison-bars,
  .route-result-modal .result-dashboard-card:not(:first-child) .comparison-bars {
    margin-bottom: 8px;
  }
}

/* 手機版捷運模式：與導航模式相同的垂直佈局 */
@media (max-width: 768px) {
  /* 手機版彈窗內容置中對齊 */
  .route-result-body {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    padding: 16px !important;
  }
  
  .route-map-container {
    width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    justify-content: center !important;
  }
  
  .route-comparison-modal .result-dashboard-grid,
  .route-result-modal .result-dashboard-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: repeat(3, auto) !important;
    gap: 16px !important;
    width: 100% !important;
    max-width: 100% !important;
    justify-items: stretch !important;
    align-items: center !important;
    padding: 0 10px !important;
  }
  
  .route-comparison-modal .result-dashboard-card,
  .route-result-modal .result-dashboard-card {
    min-height: auto !important;
    height: auto !important;
    width: auto !important;
    max-width: none !important;
    padding: 8px 10px !important;
    margin: 0 !important;
    align-self: stretch !important;
  }
  
  /* 改善效益卡片：垂直佈局 */
  .route-comparison-modal .result-dashboard-card:first-child,
  .route-result-modal .result-dashboard-card:first-child {
    display: flex !important;
    flex-direction: column !important;
    padding: 16px !important;
    min-height: 90px !important; /* Added min-height with !important to override global rule */
    background: linear-gradient(135deg, #87CEEB 0%, #B0E0E6 100%) !important;
    border: 2px solid rgba(255, 255, 255, 0.3) !important;
    box-shadow: 0 8px 32px rgba(135, 206, 235, 0.4) !important;
  }
  
  .route-comparison-modal .result-dashboard-card:first-child .card-title,
  .route-result-modal .result-dashboard-card:first-child .card-title {
    margin-bottom: 12px !important;
    text-align: left !important;
    color: white !important;
    font-size: 14px !important;
  }
  
  .route-comparison-modal .result-dashboard-card:first-child .improvement-display-simple,
  .route-result-modal .result-dashboard-card:first-child .improvement-display-simple {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 1 !important;
  }
  
  /* 距離比較和時間比較卡片：垂直佈局 */
  .route-comparison-modal .result-dashboard-card:not(:first-child),
  .route-result-modal .result-dashboard-card:not(:first-child) {
    display: flex !important;
    flex-direction: column !important;
    padding: 12px !important;
    min-height: 90px !important;
  }
  
  .route-comparison-modal .result-dashboard-card:not(:first-child) .card-title,
  .route-result-modal .result-dashboard-card:not(:first-child) .card-title {
    margin-bottom: 8px !important;
    text-align: left !important;
  }
  
  .route-comparison-modal .result-dashboard-card:not(:first-child) .comparison-bars,
  .route-result-modal .result-dashboard-card:not(:first-child) .comparison-bars {
    margin-bottom: 8px !important;
  }
}

.result-dashboard-card {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-radius: 18px; /* 更圓角 */
  padding: 14px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  min-height: 120px;
}

/* 除了暴露改善以外其他結果卡片加灰邊框 */
.result-dashboard-card:not(.result-combined-improvement-card) {
  border: 1px solid rgba(0, 0, 0, 0.2); /* 邊框加深 */
}

/* 水平進度條樣式 */
.horizontal-progress-container {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  height: 100%;
  min-height: 80px;
  padding: 8px;
  gap: 6px;
}

/* 改善效益卡片特殊樣式 - 綠粗框白底 */
.dashboard-card.combined-improvement-card {
  background: white !important;
  border: 6px solid #4CAF50 !important;
  box-shadow: 0 2px 8px rgba(76, 175, 80, 0.2) !important;
  min-height: 120px !important;
}

/* 捷運模式改善效益卡片樣式 - 白底綠粗框黑標題進度條 */
.result-dashboard-card.result-combined-improvement-card {
  background: white !important;
  border: 6px solid #4CAF50 !important;
  box-shadow: 0 2px 8px rgba(76, 175, 80, 0.2) !important;
  min-height: 120px !important;
}

.result-combined-improvement-card .card-title {
  color: black !important;
  font-weight: 700;
  text-shadow: none !important;
}

.result-combined-improvement-card .help-icon-btn {
  background: rgba(0, 0, 0, 0.1);
  color: #333;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.result-combined-improvement-card .help-icon-btn:hover {
  background: rgba(0, 0, 0, 0.2);
  transform: scale(1.1);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  gap: 20px;
}

.progress-label {
  font-size: 14px;
  font-weight: 600;
  color: #333;
}

.progress-percentage {
  font-size: 24px;
  font-weight: bold;
  color: #4CAF50;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.progress-bar-container {
  position: relative;
  height: 10px;
  background: #f0f0f0;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.progress-bar-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, #f0f0f0 0%, #e8e8e8 100%);
  border-radius: 5px;
}

.progress-bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0%;
  background: linear-gradient(90deg, #4CAF50 0%, #45a049 50%, #2E7D32 100%);
  border-radius: 5px;
  transition: width 2s ease-in-out;
  box-shadow: 0 1px 3px rgba(76, 175, 80, 0.3);
}

.progress-bar-glow {
  position: absolute;
  top: -2px;
  left: 0;
  bottom: -2px;
  width: 0%;
  background: linear-gradient(90deg, rgba(76, 175, 80, 0.3) 0%, rgba(76, 175, 80, 0.6) 50%, rgba(76, 175, 80, 0.3) 100%);
  border-radius: 7px;
  transition: width 2s ease-in-out;
  filter: blur(4px);
  opacity: 0;
}

.progress-scale {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  padding: 0 4px;
}

.scale-label {
  font-size: 11px;
  color: #666;
  font-weight: 500;
}

/* 水平進度條動畫效果 */
.progress-percentage.animating {
  animation: numberPulse 0.8s ease-in-out;
}

@keyframes numberPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); color: #2E7D32; }
  100% { transform: scale(1); }
}

.progress-bar-fill.animating {
  animation: progressGlow 2s ease-in-out;
}

.progress-bar-glow.animating {
  animation: glowEffect 2s ease-in-out;
}

@keyframes progressGlow {
  0% { box-shadow: 0 1px 3px rgba(76, 175, 80, 0.3); }
  50% { box-shadow: 0 2px 8px rgba(76, 175, 80, 0.6), 0 0 12px rgba(76, 175, 80, 0.4); }
  100% { box-shadow: 0 1px 3px rgba(76, 175, 80, 0.3); }
}

@keyframes glowEffect {
  0% { opacity: 0; }
  30% { opacity: 1; }
  70% { opacity: 1; }
  100% { opacity: 0; }
}

/* 確保捷運模式資訊卡使用3:2比例 - 僅電腦版 */
@media (min-width: 769px) {
  .route-comparison-modal .result-dashboard-card,
  .route-result-modal .result-dashboard-card {
    aspect-ratio: 3/2 !important;
    min-height: auto !important;
    height: auto !important;
    width: auto !important;
  }
  
  /* 電腦版捷運模式解算成果彈窗中的導航模式選擇器間隔 */
  .route-result-modal .transport-mode-selector {
    margin: 12px 16px 16px 16px !important; /* 上 右 下 左 */
    padding: 12px 16px !important;
  }
}

.result-dashboard-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

/* 關閉路徑比較彈窗中資訊卡的 hover 動畫 */
.route-comparison-modal .result-dashboard-card:hover {
  transform: none !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}

/* 關閉路徑比較彈窗中 dashboard-card 的 hover 動畫 */
.route-comparison-modal .dashboard-card:hover {
  transform: none !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}

.result-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin: 0 0 12px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.result-comparison-bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-bar-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.result-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.result-route-type {
  font-weight: 500;
  font-size: 12px;
}

.result-route-type.shortest {
  color: #3C3C9A;
}

.result-route-type.lowest {
  color: #2BB1AA;
}

.result-route-value {
  font-weight: 600;
  font-size: 13px;
}

.result-progress-bar {
  height: 8px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.result-progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.8s ease;
}

.result-progress-fill.shortest {
  background: linear-gradient(90deg, #3C3C9A 0%, #2D2D7A 100%);
}

.result-progress-fill.lowest {
  background: linear-gradient(90deg, #2BB1AA 0%, #1A9B94 100%);
}

.result-metric-display {
  text-align: center;
  padding: 10px 0;
}

.result-metric-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}

.result-metric-unit {
  font-size: 14px;
  color: rgba(0, 0, 0, 0.6);
  margin-bottom: 8px;
}

.result-metric-label {
  font-size: 12px;
  color: rgba(0, 0, 0, 0.6);
  font-weight: 500;
}

.carbon-card .carbon-content {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.carbon-card .carbon-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}
.carbon-card .carbon-sub,
.carbon-card .carbon-mode {
  font-size: 12px;
  color: rgba(0,0,0,0.65);
}
.carbon-card .carbon-visual { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.carbon-card .carbon-trees { display: flex; gap: 6px; }
.carbon-card .carbon-caption { font-size: 12px; color: rgba(0,0,0,0.65); }
.tree-icon { width: 24px; height: 24px; }
.tree-icon.inactive { opacity: 0.25; }

.steps-card .steps-content { display: flex; flex-direction: column; gap: 10px; }
.steps-card .steps-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.steps-card .steps-value { font-size: 22px; font-weight: 800; color: var(--primary); }
.steps-card .steps-sub { font-size: 12px; color: rgba(0,0,0,0.65); }
.steps-card .height-control { display: flex; flex-direction: column; gap: 4px; min-width: 180px; }
.steps-card .height-control input[type="range"] { width: 180px; }
.steps-card .height-control label,
.steps-card .height-control .height-value { color: #000; font-weight: 600; }
.steps-card .health-stats { display: flex; gap: 16px; font-size: 12px; color: rgba(0,0,0,0.75); }
.steps-card .steps-visual { display: flex; flex-wrap: wrap; gap: 3px; max-width: 200px; }
.footprint-icon { width: 16px; height: 16px; }

.combined-rt-card .section { margin-top: 4px; }
.combined-rt-card .section-title { font-size: 12px; color: rgba(0,0,0,0.65); margin-bottom: 6px; }
.comparison-combined { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }


.result-improvement-card {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid rgba(14, 165, 233, 0.2);
}

/* 捷運模式改善率使用相同的樣式，不需要額外的CSS */

/* 路徑解算結果彈窗 */
.route-result-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease-out;
}

.route-result-content {
  background: var(--card-bg);
  backdrop-filter: saturate(200%) blur(18px);
  border-radius: var(--border-radius);
  width: 98vw; /* 更接近滿版 */
  max-width: 98vw;
  max-height: 96vh;
  box-shadow: var(--shadow-strong);
  animation: slideIn 0.3s ease-out;
}

.route-result-header {
  padding: 20px 24px 16px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.route-result-header h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 0;
}

.close-route-result {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--muted);
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}

.close-route-result:hover {
  background: rgba(139, 21, 56, 0.1);
  color: var(--primary);
}

.route-result-body {
  padding: 24px;
  max-height: calc(90vh - 140px);
  overflow-y: auto;
}

.route-map-container {
  margin-bottom: 24px;
}

.route-result-map {
  width: 100%;
  height: 60vh; /* 以視窗高度為基準放大 */
  border-radius: var(--border-radius);
  background: #f8f9fa;
  border: 2px solid var(--border);
}

/* 桌機版再放大（≥1200px） */
@media (min-width: 1200px) {
  .route-result-content {
    width: 98.5vw;
    max-width: 98.5vw;
    max-height: 97vh;
  }
  /* 桌機版左右分欄：左地圖、右資訊卡 */
  .route-result-body {
    display: flex !important;
    flex-direction: row !important;
    gap: 16px !important;
    align-items: stretch !important;
    height: calc(97vh - 140px) !important; /* 扣除標題與邊距 */
  }
  .route-map-container {
    flex: 2 1 0;
    min-width: 0;
  }
  .route-result-map {
    height: 100% !important;
  }
  .result-dashboard-container {
    flex: 1 1 0;
    min-width: 320px;
    max-width: 580px;
    overflow-y: auto;
    padding-right: 6px;
  }
  /* 右側資訊卡改為與導航模式一致：單欄縱向排列 */
  .route-result-modal .result-dashboard-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
  }
  .route-result-modal .result-dashboard-card {
    aspect-ratio: auto !important; /* 取消 3:2 比例 */
    height: auto !important;
    min-height: 120px !important;
    width: 100% !important;
  }
}

/* 手機版（≤768px）：捷運模式解算彈窗縮小、地圖在上資訊卡在下 */
@media (max-width: 768px) {
  .route-result-content {
    width: 95vw !important;
    max-width: 95vw !important;
    max-height: 88vh !important; /* 避免超出螢幕 */
  }
  .route-result-body {
    display: flex !important;
    flex-direction: column !important; /* 上下排列 */
    gap: 10px !important;
    height: auto !important;
  }
  .route-map-container { width: 100% !important; }
  .route-result-map {
    height: 35vh !important; /* 手機地圖較小 */
  }
  .result-dashboard-container {
    width: 100% !important;
    max-height: calc(88vh - 38vh) !important; /* 估略避免溢出 */
    overflow-y: auto !important;
    padding-right: 2px !important;
  }
  .route-result-modal .result-dashboard-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
  }
  .route-result-modal .result-dashboard-card {
    min-height: 110px !important;
  }
}

/* 覆寫較寬範圍桌機（≥1024px），避免 3 欄規則影響 */
@media (min-width: 1024px) {
  .route-result-modal .result-dashboard-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
  }
  .route-result-modal .result-dashboard-card {
    aspect-ratio: auto !important;
    height: auto !important;
    min-height: 120px !important;
  }
}

/* 滾動條美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(139, 21, 56, 0.1);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Help圖示按鈕樣式 */
.help-icon-btn {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.2);
  font-size: 11px;
  color: #333;
  cursor: pointer;
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px; /* 膠囊形狀 */
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  line-height: 1;
}

.help-icon-btn:hover { background-color: #f5f5f5; }

.help-icon-btn:active {
  transform: scale(0.95);
}

/* 改善率說明彈窗樣式 */
#improvement-help-modal {
  z-index: 2500 !important;
}

/* 讓捷運模式資訊卡的說明彈窗蓋在解算成果彈窗之上 */
#carbon-help-modal,
#steps-help-modal {
  z-index: 3000 !important; /* route-result-modal 是 2000 */
}

.improvement-help-content {
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
}

.formula-container {
  margin: 15px 0;
}

.formula-box {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 2px solid #dee2e6;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.formula-text {
  font-size: 16px;
  color: #495057;
  line-height: 1.6;
}

.example-container {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 15px;
  margin-top: 10px;
}

.example-container p {
  margin: 8px 0;
  color: #495057;
}