/* ========== 轻愈小站 - 全局样式 ========== */
:root {
  --bg-primary: #FAF7F2;
  --bg-secondary: #F5F0EB;
  --bg-card: #FFFFFF;
  --bg-dark: #2C2C2C;
  --text-primary: #4A4A4A;
  --text-secondary: #8A8A8A;
  --text-light: #B0B0B0;
  --accent-green: #7EB5A6;
  --accent-green-dark: #5A9A8B;
  --accent-beige: #D4C5B9;
  --accent-rose: #D4A5A5;
  --accent-blue: #8BA4BC;
  --accent-gold: #C9B99A;
  --accent-coral: #E8B4B4;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.container { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 20px; 
}

/* ========== 导航栏 ========== */
.navbar {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-green);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .logo-icon { width: 36px; height: 36px; border-radius: 4px; flex-shrink: 0; }

.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--accent-green);
  color: #fff;
}

/* ========== Hero 区域 ========== */
.hero {
  text-align: center;
  padding: 80px 20px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 50% 0%, rgba(126,181,166,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 80%, rgba(212,165,165,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  position: relative;
}

.hero h1 .accent { color: var(--accent-green); }

.hero p {
  font-size: clamp(16px, 2.5vw, 20px);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
  position: relative;
}

.hero-tags {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.hero-tag {
  background: rgba(126,181,166,0.1);
  color: var(--accent-green-dark);
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 14px;
}

/* ========== 功能卡片网格 ========== */
.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  padding: 0 20px 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--card-accent, var(--accent-green));
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card:hover::after {
  transform: scaleX(1);
}

.feature-card:nth-child(1) { --card-accent: #7EB5A6; }
.feature-card:nth-child(2) { --card-accent: #8BA4BC; }
.feature-card:nth-child(3) { --card-accent: #D4A5A5; }
.feature-card:nth-child(4) { --card-accent: #C9B99A; }
.feature-card:nth-child(5) { --card-accent: #B5A6C9; }
.feature-card:nth-child(6) { --card-accent: #E8B4B4; }
.feature-card:nth-child(7) { --card-accent: #7EB5A6; }
.feature-card:nth-child(8) { --card-accent: #C9A96E; }
.feature-card:nth-child(9) { --card-accent: #8BA4BC; }
.feature-card:nth-child(10) { --card-accent: #7B68AE; }
.feature-card:nth-child(11) { --card-accent: #EF5350; }
.feature-card:nth-child(12) { --card-accent: #C9B99A; }
.feature-card:nth-child(13) { --card-accent: #7B68EE; }
.feature-card:nth-child(14) { --card-accent: #9B59B6; }
.feature-card:nth-child(15) { --card-accent: #FF6B9D; }
.feature-card:nth-child(16) { --card-accent: #FF4500; }
.feature-card:nth-child(17) { --card-accent: #8E44AD; }
.feature-card:nth-child(18) { --card-accent: #3498DB; }
.feature-card:nth-child(19) { --card-accent: #E74C3C; }
.feature-card:nth-child(20) { --card-accent: #D4A574; }
.feature-card:nth-child(21) { --card-accent: #5B8DEE; }
.feature-card:nth-child(22) { --card-accent: #C9A96E; }

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

/* ========== 页面头部 ========== */
.page-header {
  text-align: center;
  padding: 48px 20px 32px;
}

.page-header h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.back-link:hover { color: var(--accent-green); }

/* ========== 白噪音页面 ========== */
.noise-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.sound-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.sound-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  user-select: none;
}

.sound-card:hover { box-shadow: var(--shadow-md); }

.sound-card.active {
  border-color: var(--accent-green);
  background: rgba(126,181,166,0.08);
}

.sound-card .sound-icon { font-size: 36px; margin-bottom: 8px; }

.sound-card .sound-name {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 12px;
}

.sound-card input[type="range"] {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  background: #e0e0e0;
  border-radius: 2px;
  outline: none;
}

.sound-card input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent-green);
  border-radius: 50%;
  cursor: pointer;
}

.timer-selector {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

.timer-btn {
  padding: 10px 24px;
  border-radius: 24px;
  border: 1.5px solid #e0e0e0;
  background: var(--bg-card);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
  color: var(--text-primary);
}

.timer-btn:hover,
.timer-btn.active {
  border-color: var(--accent-green);
  background: var(--accent-green);
  color: #fff;
}

.timer-display {
  text-align: center;
  font-size: 24px;
  font-weight: 600;
  margin-top: 16px;
  color: var(--accent-green);
  min-height: 36px;
}

/* ========== 呼吸冥想 ========== */
.breath-container {
  text-align: center;
  padding: 0 20px 60px;
  max-width: 600px;
  margin: 0 auto;
}

.breath-modes {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.breath-mode-btn {
  padding: 10px 24px;
  border-radius: 24px;
  border: 1.5px solid #e0e0e0;
  background: var(--bg-card);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
  color: var(--text-primary);
}

.breath-mode-btn:hover,
.breath-mode-btn.active {
  border-color: var(--accent-rose);
  background: var(--accent-rose);
  color: #fff;
}

.breath-circle-wrapper {
  position: relative;
  width: 260px;
  height: 260px;
  margin: 0 auto 32px;
}

.breath-circle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,165,165,0.4), rgba(212,165,165,0.1));
  transition: all 0.1s linear;
}

.breath-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  z-index: 1;
}

.breath-timer-display {
  font-size: 48px;
  font-weight: 300;
  color: var(--accent-rose);
  margin-bottom: 8px;
}

.breath-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

/* ========== 电子木鱼 ========== */
.wooden-fish-container {
  text-align: center;
  padding: 0 20px 60px;
}

.wooden-fish-area {
  width: 220px;
  height: 220px;
  margin: 0 auto 32px;
  border-radius: 50%;
  background: radial-gradient(circle at 45% 40%, #F5E6D3, #D4B896, #B8956A);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.08s ease;
  box-shadow: 0 8px 32px rgba(139,109,82,0.25), inset 0 2px 8px rgba(255,255,255,0.3);
  user-select: none;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

.wooden-fish-area:active,
.wooden-fish-area.pressed {
  transform: scale(0.93);
}

.wooden-fish-inner {
  width: 80px;
  height: 120px;
  border-radius: 40px 40px 50% 50%;
  background: radial-gradient(ellipse at 45% 35%, #F0DCC8, #C4A882);
  position: relative;
}

.wooden-fish-inner::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  background: #5C3D2E;
  border-radius: 50%;
  top: 32px;
  left: 50%;
  transform: translateX(-50%);
}

.wooden-fish-inner::after {
  content: '';
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: rgba(0,0,0,0.1);
  border-radius: 2px;
}

.count-display {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.count-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.wooden-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.wooden-sound-select {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.wooden-sound-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 1.5px solid #e0e0e0;
  background: var(--bg-card);
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
  color: var(--text-primary);
}

.wooden-sound-btn:hover,
.wooden-sound-btn.active {
  border-color: var(--accent-gold);
  background: var(--accent-gold);
  color: #fff;
}

/* ========== 番茄钟 ========== */
.pomodoro-container {
  text-align: center;
  padding: 0 20px 60px;
  max-width: 500px;
  margin: 0 auto;
}

.pomodoro-modes {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.pomo-mode-btn {
  padding: 8px 20px;
  border-radius: 20px;
  border: 1.5px solid #e0e0e0;
  background: var(--bg-card);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
  color: var(--text-primary);
}

.pomo-mode-btn:hover,
.pomo-mode-btn.active {
  border-color: var(--accent-blue);
  background: var(--accent-blue);
  color: #fff;
}

.pomodoro-timer-ring {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto 32px;
}

.pomodoro-timer-ring svg {
  transform: rotate(-90deg);
}

.pomodoro-timer-ring .bg-circle {
  fill: none;
  stroke: #f0f0f0;
  stroke-width: 8;
}

.pomodoro-timer-ring .progress-circle {
  fill: none;
  stroke: var(--accent-blue);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.5s linear;
}

.pomodoro-time {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 56px;
  font-weight: 300;
  color: var(--text-primary);
}

.pomodoro-state {
  font-size: 16px;
  color: var(--text-secondary);
  margin-top: 8px;
}

.pomodoro-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

.session-counter {
  margin-top: 32px;
  font-size: 14px;
  color: var(--text-secondary);
}

.session-counter span {
  font-weight: 600;
  color: var(--accent-blue);
  margin: 0 4px;
}

/* ========== 治愈小角落 ========== */
.healing-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.healing-quote-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.healing-quote-card::before {
  content: '"';
  position: absolute;
  top: 10px;
  left: 24px;
  font-size: 80px;
  color: rgba(126,181,166,0.15);
  font-family: Georgia, serif;
  line-height: 1;
}

.quote-text {
  font-size: 20px;
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.quote-author {
  font-size: 14px;
  color: var(--text-secondary);
}

.quote-refresh {
  margin-top: 16px;
  padding: 8px 24px;
  border-radius: 20px;
  border: 1.5px solid var(--accent-green);
  background: transparent;
  color: var(--accent-green);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition);
}

.quote-refresh:hover {
  background: var(--accent-green);
  color: #fff;
}

.doodle-section {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 40px;
}

.doodle-section h3 {
  font-size: 18px;
  margin-bottom: 16px;
  text-align: center;
}

.doodle-tools {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.doodle-color {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}

.doodle-color:hover,
.doodle-color.active {
  border-color: var(--text-primary);
  transform: scale(1.15);
}

.doodle-size {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-left: 16px;
}

.doodle-size-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid #e0e0e0;
  background: var(--bg-card);
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--text-primary);
}

.doodle-size-btn.active {
  border-color: var(--accent-green);
  background: var(--accent-green);
  color: #fff;
}

.doodle-canvas-wrapper {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px #e0e0e0;
  touch-action: none;
}

.doodle-canvas-wrapper canvas {
  display: block;
  width: 100%;
  cursor: crosshair;
  background: #fff;
}

.doodle-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

/* ========== 通用按钮 ========== */
.btn {
  padding: 12px 28px;
  border-radius: 24px;
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-green);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-green-dark); }

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1.5px solid #e0e0e0;
}

.btn-secondary:hover { 
  background: #f5f5f5;
  border-color: #c0c0c0;
}

.btn-small {
  padding: 6px 16px;
  font-size: 13px;
}

/* ========== 页脚 ========== */
.footer {
  text-align: center;
  padding: 40px 20px;
  border-top: 1px solid rgba(0,0,0,0.05);
  margin-top: 60px;
  color: var(--text-light);
  font-size: 13px;
  line-height: 2;
}

.footer a {
  color: var(--accent-green);
  text-decoration: none;
}

.footer .share-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 16px 0;
}

.share-btn {
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid #e0e0e0;
  background: var(--bg-card);
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
  color: var(--text-secondary);
}

.share-btn:hover {
  background: var(--accent-green);
  color: #fff;
  border-color: var(--accent-green);
}

/* ========== 暗色护眼模式 ========== */
body.dark-mode {
  --bg-primary: #1A1A2E;
  --bg-secondary: #16213E;
  --bg-card: #1F2B3D;
  --text-primary: #E0E0E0;
  --text-secondary: #A0A0B0;
  --text-light: #707080;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
}

body.dark-mode .navbar {
  background: rgba(26,26,46,0.9);
  border-bottom-color: rgba(255,255,255,0.05);
}

body.dark-mode .sound-card,
body.dark-mode .healing-quote-card,
body.dark-mode .doodle-section,
body.dark-mode .btn-secondary,
body.dark-mode .feature-card {
  background: var(--bg-card);
  border-color: rgba(255,255,255,0.06);
}

.dark-mode-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1.5px solid #e0e0e0;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  z-index: 99;
}

.dark-mode-toggle:hover {
  transform: scale(1.1);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .nav-links { gap: 4px; }
  .nav-links a { padding: 6px 12px; font-size: 13px; }

  .hero { padding: 48px 20px 40px; }
  .hero h1 { font-size: 28px; }
  .hero p { font-size: 15px; }

  .features-grid {
    grid-template-columns: 1fr;
    padding: 0 16px 40px;
  }

  .sound-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .sound-card { padding: 14px 10px; }
  .sound-card .sound-icon { font-size: 28px; }

  .pomodoro-timer-ring { width: 220px; height: 220px; }
  .pomodoro-time { font-size: 42px; }

  .breath-circle-wrapper { width: 200px; height: 200px; }
  .breath-timer-display { font-size: 36px; }

  .wooden-fish-area { width: 180px; height: 180px; }

  /* 手机底部导航栏 */
  .mobile-bottom-nav {
    display: flex;
  }
}

@media (max-width: 480px) {
  .sound-grid { grid-template-columns: repeat(2, 1fr); }
  .pomodoro-timer-ring { width: 200px; height: 200px; }
  .pomodoro-time { font-size: 36px; }
  .breath-circle-wrapper { width: 180px; height: 180px; }
}

/* ========== 手机底部导航栏 ========== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0,0,0,0.06);
  z-index: 100;
  padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
  justify-content: space-around;
}

body.dark-mode .mobile-bottom-nav {
  background: rgba(26,26,46,0.92);
  border-top-color: rgba(255,255,255,0.06);
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 4px 8px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 11px;
  transition: var(--transition);
  min-width: 50px;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-item .mobile-nav-icon {
  font-size: 22px;
  line-height: 1;
}

.mobile-nav-item:hover,
.mobile-nav-item:active {
  color: var(--accent-green);
  background: rgba(126,181,166,0.1);
}

/* ========== 粒子背景 ========== */
#particles-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.content-layer {
  position: relative;
  z-index: 1;
}

/* 动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float-anim { animation: float 3s ease-in-out infinite; }

/* ========== PWA 安装提示栏 ========== */
.pwa-install-bar {
  display: none;
  position: fixed;
  bottom: 70px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--accent-green);
  color: #fff;
  padding: 10px 20px;
  border-radius: 28px;
  box-shadow: 0 4px 20px rgba(126,181,166,0.4);
  align-items: center;
  gap: 12px;
  font-size: 14px;
  white-space: nowrap;
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from { transform: translateX(-50%) translateY(20px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.pwa-install-bar button {
  background: rgba(255,255,255,0.25);
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.2s;
}
.pwa-install-bar button:hover { background: rgba(255,255,255,0.4); }

.pwa-install-bar .dismiss-btn {
  background: transparent;
  padding: 4px 8px;
  font-size: 16px;
  opacity: 0.7;
}
.pwa-install-bar .dismiss-btn:hover { opacity: 1; }