/* ==========================================================================
   《牛来跑酷》 - 全局视觉设计与玻璃拟态 UI 样式表
   ========================================================================== */

:root {
  --primary-color: #ff9800;
  --primary-gradient: linear-gradient(135deg, #ff9800 0%, #ff5722 100%);
  --accent-cyan: #00e5ff;
  --accent-gold: #ffd700;
  --accent-green: #00e676;
  --accent-pink: #ff4081;
  --accent-purple: #7c4dff;
  
  --bg-dark: #0a0e17;
  --glass-bg: rgba(16, 24, 40, 0.85);
  --glass-bg-hover: rgba(30, 41, 59, 0.92);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-active: rgba(255, 152, 0, 0.8);
  --glass-shadow: 0 12px 32px 0 rgba(0, 0, 0, 0.5);
  
  --text-main: #ffffff;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-display: 'Fredoka', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   自定义美化滚动条 (玻璃拟态风格)
   ========================================================================== */

/* Webkit 内核 (Chrome, Safari, Edge) */
* {
  scrollbar-width: thin; /* Firefox: 细滚动条 */
  scrollbar-color: rgba(255, 152, 0, 0.35) rgba(255, 255, 255, 0.05); /* Firefox: 滑块/轨道色 */
}

*::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

*::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

*::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(255, 152, 0, 0.5), rgba(255, 87, 34, 0.4));
  border-radius: 3px;
  transition: background 0.2s;
}

*::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(255, 152, 0, 0.75), rgba(255, 87, 34, 0.65));
}

*::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, rgba(255, 152, 0, 0.9), rgba(255, 87, 34, 0.8));
}

*::-webkit-scrollbar-corner {
  background: transparent;
}

/* 基础重置 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-dark);
  font-family: var(--font-body);
  color: var(--text-main);
}

/* 游戏最外层容器（响应式自适应） */
#game-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #1b2838 0%, #080c14 100%);
  overflow: hidden;
}

/* Canvas 游戏主画布 */
#game-canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  image-rendering: auto;
  box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
}

/* 全局模态与遮罩 */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 8, 16, 0.38);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* 玻璃拟态面板 */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-lg);
  color: var(--text-main);
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

/* ==========================================================================
   HUD 仪表盘样式
   ========================================================================== */
.hud-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 50;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: opacity var(--transition-normal);
}

.hud-layer.hidden {
  opacity: 0;
  pointer-events: none;
}

.hud-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

.hud-card {
  pointer-events: auto;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-pill);
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.player-info-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 8px;
}

.character-mini-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border: 2px solid #fff;
  box-shadow: 0 0 10px rgba(255, 152, 0, 0.6);
}

.character-meta {
  display: flex;
  flex-direction: column;
}

.character-name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.track-badge {
  font-size: 11px;
  color: var(--accent-cyan);
  font-weight: 600;
}

/* 狂热能量槽 */
.fever-bar-container {
  flex: 0 1 380px;
  border-radius: var(--radius-md);
  padding: 8px 14px;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(255, 215, 0, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.fever-bar-container.active-fever {
  border-color: var(--accent-gold);
  box-shadow: 0 0 25px rgba(255, 215, 0, 0.7);
  animation: feverPulse 0.8s infinite alternate;
}

@keyframes feverPulse {
  0% { transform: scale(1); filter: brightness(1); }
  100% { transform: scale(1.03); filter: brightness(1.3); }
}

.fever-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 700;
}

.fever-icon {
  color: var(--accent-gold);
}

.fever-text {
  color: #fef08a;
  letter-spacing: 0.5px;
}

.fever-timer {
  color: var(--accent-cyan);
  font-family: monospace;
  font-size: 13px;
  font-weight: 800;
}

.fever-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.fever-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #ff9800, #ffeb3b, #00e5ff);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 10px var(--accent-gold);
  transition: width 0.1s linear;
}

/* 状态组 */
.hud-stats-group {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

.hud-pill {
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 105px;
}

.pill-icon {
  font-size: 18px;
}

.pill-data {
  display: flex;
  flex-direction: column;
}

.pill-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pill-value {
  font-size: 16px;
  font-weight: 800;
  font-family: var(--font-display);
  color: #fff;
  line-height: 1.1;
}

.score-pill .pill-value {
  color: #fbbf24;
}

.coin-pill .pill-value {
  color: #facc15;
}

.distance-pill .pill-value {
  color: var(--accent-cyan);
}

.hud-btn-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.hud-btn-icon:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.08);
}

/* ==========================================================================
   触控按钮（移动端）
   ========================================================================== */
.touch-controls-layer {
  position: absolute;
  bottom: 24px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 32px;
  pointer-events: none;
  z-index: 55;
}

.touch-controls-layer.hidden {
  display: none;
}

.touch-btn {
  pointer-events: auto;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(10px);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  touch-action: manipulation;
  cursor: pointer;
}

.touch-btn:active {
  transform: scale(0.92);
  background: var(--primary-gradient);
  border-color: #fff;
}

.touch-btn .touch-icon {
  font-size: 28px;
}

.touch-btn .touch-text {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   主菜单 & 换装选角大厅 (弹性视口架构：头尾固定，中间独立滚动)
   ========================================================================== */
.main-menu-panel {
  width: min(96vw, 1180px);
  height: min(94vh, 760px);
  max-height: 94vh;
  padding: 14px 20px 12px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 10px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.65), 0 0 20px rgba(255, 152, 0, 0.15);
}

/* 顶部 Banner (固定在顶部，不跟随滚动) */
.game-logo-banner {
  flex-shrink: 0;
  text-align: center;
  position: relative;
  margin-bottom: 2px;
}

.logo-badge {
  display: inline-block;
  background: rgba(255, 87, 34, 0.22);
  color: #ff7043;
  border: 1px solid rgba(255, 87, 34, 0.4);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 2px;
}

.game-title {
  font-size: clamp(22px, 3.2vh, 30px);
  font-weight: 900;
  font-family: var(--font-display);
  background: linear-gradient(135deg, #ffffff 0%, #ffe082 40%, #ff9800 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 24px rgba(255, 152, 0, 0.45);
  letter-spacing: 2px;
  line-height: 1.1;
}

.game-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ==========================================================================
   中间配置内容主区域 (移动优先 Mobile-First：默认单列独立美化滚动流)
   ========================================================================== */
.menu-content-grid {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-right: 4px;
  width: 100%;
}

/* 4大通用子卡片面板 (强制不可被挤压塌陷) */
.card-subpanel {
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  width: 100%;
  flex-shrink: 0; /* 绝不允许被父容器挤压折叠 */
  height: auto;
  min-height: fit-content;
  box-sizing: border-box;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 6px;
}

.sub-tag {
  font-size: 10px;
  color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.15);
  border: 1px solid rgba(0, 229, 255, 0.3);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}

/* 模块 1：8位角色卡片网格 */
.char-panel-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.character-select-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  width: 100%;
}

.char-card {
  background: rgba(30, 41, 59, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  text-align: center;
  box-sizing: border-box;
}

.char-card:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.char-card.selected {
  background: rgba(255, 152, 0, 0.22);
  border-color: var(--primary-color);
  box-shadow: 0 0 12px rgba(255, 152, 0, 0.5);
}

.char-card.selected::after {
  content: '✓';
  position: absolute;
  top: 2px;
  right: 4px;
  font-size: 10px;
  font-weight: 900;
  color: var(--primary-color);
}

.char-avatar-box {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.18);
}

.char-name {
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}

.char-desc-tag {
  font-size: 9px;
  color: var(--text-muted);
  line-height: 1.1;
  white-space: nowrap;
}

/* 模块 2：动态更衣舞台与穿搭换装 */
.wardrobe-panel-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.preview-canvas-wrapper {
  position: relative;
  background: radial-gradient(circle at 50% 40%, #1e293b 0%, #090d16 100%);
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(255, 152, 0, 0.35);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.6), 0 4px 16px rgba(255, 152, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  height: 180px;
  min-height: 180px; /* 强制固定高度，绝不被压成一条线 */
  flex-shrink: 0;
  width: 100%;
  box-sizing: border-box;
}

#preview-canvas {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 360 / 280;
  object-fit: contain;
  display: block;
}

.preview-role-tag {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 215, 0, 0.4);
  font-size: 11px;
  font-weight: 800;
  color: var(--accent-gold);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

/* 换装 Tab */
.wardrobe-tabs {
  display: flex;
  gap: 6px;
  width: 100%;
}

.wardrobe-tab-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  padding: 7px 2px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.wardrobe-tab-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.wardrobe-tab-btn.active {
  background: var(--primary-gradient);
  border-color: #ff9800;
  color: #fff;
  box-shadow: 0 3px 12px rgba(255, 152, 0, 0.45);
}

/* 换装列表网格 (3列整齐平铺) */
.wardrobe-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  width: 100%;
}

.wardrobe-item-card {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 7px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  box-sizing: border-box;
}

.wardrobe-item-card:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.wardrobe-item-card.selected {
  background: rgba(255, 152, 0, 0.22);
  border-color: var(--primary-color);
  box-shadow: 0 0 10px rgba(255, 152, 0, 0.5);
}

.wardrobe-item-card .item-swatch {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

.wardrobe-item-card .item-title {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.1;
  white-space: nowrap;
}

/* 模块 3：5大赛道卡片网格 (全部完整平铺，无遮挡) */
.track-panel-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.track-select-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  width: 100%;
}

.track-card {
  background: rgba(30, 41, 59, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  box-sizing: border-box;
}

.track-card:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.track-card.selected {
  background: rgba(0, 229, 255, 0.22);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.55);
}

.track-card .track-icon {
  font-size: 20px;
}

.track-card .track-title {
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}

.track-card .track-feature {
  font-size: 9px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* 模块 4：3档难度切换 */
.diff-panel-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.diff-select-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
}

.diff-btn {
  background: rgba(30, 41, 59, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 8px 8px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-main);
  box-sizing: border-box;
}

.diff-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
}

.diff-btn.active {
  background: rgba(255, 152, 0, 0.2);
  border-color: var(--primary-color);
  box-shadow: 0 0 12px rgba(255, 152, 0, 0.45);
}

.diff-btn .diff-icon {
  font-size: 16px;
}

.diff-btn .diff-name {
  font-size: 12px;
  font-weight: 700;
}

.diff-btn .diff-desc {
  font-size: 9px;
  color: var(--text-muted);
}

/* 底部操作栏 (固定在底部，不跟随滚动) */
.menu-bottom-bar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 8px;
  gap: 12px;
  background: rgba(10, 14, 23, 0.65);
  border-radius: var(--radius-md);
  padding: 8px 14px;
}

.key-guide-tip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.guide-item kbd {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: monospace;
  font-size: 10px;
  color: #fff;
}

.btn-primary-glow {
  background: var(--primary-gradient);
  border: none;
  color: #fff;
  padding: 10px 34px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 18px rgba(255, 87, 34, 0.55);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary-glow:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 28px rgba(255, 87, 34, 0.7);
}

.btn-primary-glow:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-muted);
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-outline:hover {
  color: #fff;
  border-color: #fff;
}

/* ==========================================================================
   暂停与结算弹窗
   ========================================================================== */
.pause-panel, .gameover-panel {
  max-width: 480px;
  width: 90%;
  padding: 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pause-title {
  font-size: 26px;
  font-weight: 800;
}

.pause-stats {
  font-size: 16px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-around;
  background: rgba(255, 255, 255, 0.05);
  padding: 12px;
  border-radius: var(--radius-md);
}

.pause-stats strong {
  color: var(--accent-gold);
}

.pause-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 结算弹窗 */
.gameover-icon {
  font-size: 48px;
  margin-bottom: 6px;
}

.gameover-title {
  font-size: 28px;
  font-weight: 900;
  color: #ff5252;
}

.gameover-subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.score-summary-card {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.score-main-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.score-main-label {
  font-size: 12px;
  color: var(--text-muted);
}

.score-main-value {
  font-size: 44px;
  font-weight: 800;
  font-family: var(--font-display);
  background: linear-gradient(135deg, #ffd700, #ff9800);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(255, 152, 0, 0.4));
}

.new-record-badge {
  background: rgba(255, 215, 0, 0.2);
  color: #ffd700;
  border: 1px solid rgba(255, 215, 0, 0.5);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  margin-top: 4px;
}

.score-details-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 12px;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
}

.detail-icon {
  font-size: 18px;
}

.detail-label {
  font-size: 11px;
  color: var(--text-muted);
  flex: 1;
  text-align: left;
}

.detail-val {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.gameover-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ==========================================================================
   响应式断点适配
   ========================================================================== */

/* 移动端窄屏适配 (<= 600px) */
@media (max-width: 600px) {
  .main-menu-panel {
    width: 98vw;
    height: 96vh;
    padding: 8px 10px 8px;
  }

  .game-title {
    font-size: 24px;
  }

  .game-subtitle {
    font-size: 10px;
  }

  .character-select-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .char-card {
    padding: 8px 6px;
  }

  .char-avatar-box {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .preview-canvas-wrapper {
    height: 170px;
    min-height: 170px;
  }

  .wardrobe-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  .track-select-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .track-card {
    padding: 8px 6px;
  }

  .diff-select-group {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .diff-btn {
    padding: 10px 12px;
    justify-content: flex-start;
  }

  .menu-bottom-bar {
    flex-direction: column;
    align-items: stretch;
    padding: 6px 8px;
  }
  
  .key-guide-tip {
    display: none;
  }

  .btn-primary-glow {
    width: 100%;
    padding: 12px;
    font-size: 16px;
  }

  .touch-controls-layer {
    display: flex;
  }
}

/* PC 桌面宽屏断点增强 (>= 901px)：两列双栏并排布局 */
@media (min-width: 901px) {
  .menu-content-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    grid-template-rows: auto auto auto;
    gap: 14px;
  }

  /* 桌面端更衣间贯穿左侧 */
  .wardrobe-panel-section {
    grid-column: 1;
    grid-row: 1 / span 3;
    height: 100%;
  }

  .char-panel-section {
    grid-column: 2;
    grid-row: 1;
  }

  .track-panel-section {
    grid-column: 2;
    grid-row: 2;
  }

  .diff-panel-section {
    grid-column: 2;
    grid-row: 3;
  }

  .preview-canvas-wrapper {
    height: 200px;
    min-height: 200px;
  }
}