/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --secondary: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --shadow: rgba(0, 0, 0, 0.2);
  
  /* 响应式间距变量 */
  --spacing-xs: clamp(0.5rem, 1vw, 0.75rem);
  --spacing-sm: clamp(0.75rem, 1.5vw, 1rem);
  --spacing-md: clamp(1rem, 2vw, 1.5rem);
  --spacing-lg: clamp(1.25rem, 3vw, 2rem);
  --spacing-xl: clamp(1.5rem, 4vw, 2.5rem);
  
  /* 响应式字体大小 */
  --font-xs: clamp(0.75rem, 1.5vw, 0.875rem);
  --font-sm: clamp(0.875rem, 2vw, 1rem);
  --font-md: clamp(1rem, 2.5vw, 1.25rem);
  --font-lg: clamp(1.25rem, 3vw, 1.5rem);
  --font-xl: clamp(1.5rem, 4vw, 2rem);
  
  /* 响应式卡片内边距 */
  --card-padding: clamp(1rem, 2.5vw, 1.75rem);
  --card-gap: clamp(0.75rem, 2vw, 1.25rem);
  --card-radius: clamp(12px, 2vw, 20px);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* 背景壁纸 */
.background-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1s ease;
}

.background-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(0px);
}

.app-wrapper {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0;
  position: relative;
  z-index: 1;
}

/* 顶部导航栏 - 毛玻璃效果 */
.top-nav {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1920px;
  margin: 0 auto;
}

.nav-back {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-back:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(-2px);
}

.nav-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex: 1;
  justify-content: center;
}

.nav-title .icon {
  font-size: 1.75rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.nav-title .title-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--danger);
  animation: pulse 2s infinite;
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
}

.status-dot.connected {
  background: var(--secondary);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

.update-time {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* 主内容区域 */
.main-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  max-width: 1920px;
  margin: 0 auto;
}

/* 全宽主内容区域（用于子页面） */
.main-content-full {
  padding: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* 左侧面板 */
.left-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  min-width: 0; /* 防止内容溢出 */
}

/* 右侧面板 */
.right-panel {
  display: flex;
  flex-direction: column;
  min-width: 0; /* 防止内容溢出 */
}

/* 导航卡片 */
.nav-cards {
  display: flex;
  flex-direction: column;
  gap: var(--card-gap);
}

.nav-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.nav-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.nav-card:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(-4px);
}

.nav-card:hover::before {
  transform: scaleX(1);
}

.nav-card-icon {
  font-size: clamp(2rem, 5vw, 3rem);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
  flex-shrink: 0;
}

.nav-card-content {
  flex: 1;
  min-width: 0;
}

.nav-card-title {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.nav-card-desc {
  font-size: var(--font-xs);
  color: var(--text-secondary);
  margin: 0;
}

.nav-card-arrow {
  font-size: 1.5rem;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.nav-card:hover .nav-card-arrow {
  color: var(--primary);
  transform: translateX(4px);
}

/* 通用卡片样式 - 毛玻璃效果 */
.data-dashboard,
.device-status,
.control-panel,
.chart-panel,
.history-panel {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  width: 100%;
  box-sizing: border-box;
}

.data-dashboard:hover,
.device-status:hover,
.control-panel:hover,
.chart-panel:hover,
.history-panel:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.section-title {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 传感器卡片网格 - 优化布局 */
.sensor-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: var(--card-gap);
  width: 100%;
}

.sensor-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: clamp(12px, 1.5vw, 16px);
  padding: clamp(1rem, 2.5vw, 1.5rem);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  min-width: 0; /* 防止内容溢出 */
}

.sensor-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.sensor-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.35);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.sensor-card:hover::before {
  transform: scaleX(1);
}

.sensor-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.sensor-card-icon {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.sensor-card-label {
  font-size: var(--font-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.sensor-card-value {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: clamp(0.25rem, 1vw, 0.5rem);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  word-break: break-word;
}

.sensor-card-value.motion-detected {
  color: var(--secondary);
  animation: pulse 2s infinite;
}

.sensor-card-unit {
  font-size: 1.125rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 0.25rem;
}

.sensor-card-footer {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.75rem;
  opacity: 0.9;
}

/* 设备状态卡片 */
.device-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 120px), 1fr));
  gap: var(--card-gap);
  width: 100%;
}

.device-status-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: clamp(10px, 1.5vw, 14px);
  padding: clamp(0.875rem, 2vw, 1.25rem);
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  min-width: 0;
}

.device-status-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.device-status-card.active {
  background: rgba(16, 185, 129, 0.25);
  border-color: rgba(16, 185, 129, 0.5);
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.device-status-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.device-status-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.device-status-state {
  font-size: 1rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  display: inline-block;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
}

.device-status-card.active .device-status-state {
  background: rgba(16, 185, 129, 0.4);
  color: white;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.4);
}

/* 控制面板 */
.control-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.control-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: clamp(12px, 2vw, 16px);
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  width: 100%;
  min-width: 0;
}

.control-card:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.control-header {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 0.75rem);
  padding: clamp(1rem, 2.5vw, 1.25rem) clamp(1rem, 3vw, 1.5rem);
  background: rgba(59, 130, 246, 0.15);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  flex-wrap: wrap;
}

.device-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.device-name {
  flex: 1;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.device-mode {
  font-size: 0.75rem;
  padding: 0.375rem 0.875rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text-secondary);
  font-weight: 600;
  backdrop-filter: blur(10px);
}

.device-mode.auto {
  background: rgba(16, 185, 129, 0.3);
  color: var(--secondary);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.device-mode.manual {
  background: rgba(239, 68, 68, 0.3);
  color: #ff6b6b;
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.control-body {
  padding: var(--card-padding);
}

.control-row {
  margin-bottom: 1.25rem;
}

.control-row label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.input-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.input-group input[type="number"] {
  flex: 1;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  padding: 0.625rem 1rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all 0.2s;
  backdrop-filter: blur(10px);
}

.input-group input[type="number"]:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(0, 0, 0, 0.3);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.unit {
  font-size: 0.875rem;
  color: var(--text-secondary);
  min-width: 2rem;
}

.input-group input[type="range"] {
  flex: 1;
  height: 6px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
}

.input-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.input-group input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--primary-dark);
  transform: scale(1.15);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.6);
}

.value-display {
  min-width: 3.5rem;
  text-align: right;
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 600;
}

.color-picker-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.color-picker-group input[type="color"] {
  width: 50px;
  height: 45px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  cursor: pointer;
  background: none;
  padding: 0;
  transition: all 0.2s;
}

.color-picker-group input[type="color"]:hover {
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.color-preview {
  width: 45px;
  height: 45px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.color-value {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-family: 'Courier New', monospace;
}

.control-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

.btn-small,
.btn-secondary,
.btn-primary,
.btn-danger {
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  flex: 1;
  min-width: 80px;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.btn-small {
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-small:hover {
  background: rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
  background: rgba(148, 163, 184, 0.2);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(148, 163, 184, 0.3);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.6);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(239, 68, 68, 0.6);
}

.status-info {
  display: flex;
  gap: 1.25rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.status-info strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* 底部区域 */
.bottom-section {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  gap: var(--spacing-md);
  padding: 0 var(--spacing-md) var(--spacing-md);
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* 图表面板 */
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.time-range-buttons {
  display: flex;
  gap: 0.75rem;
}

.time-btn {
  padding: 0.625rem 1.25rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(10px);
}

.time-btn:hover {
  background: rgba(0, 0, 0, 0.4);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.time-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.chart-wrapper {
  position: relative;
  height: clamp(280px, 40vh, 380px);
  width: 100%;
  background: rgba(0, 0, 0, 0.1);
  border-radius: clamp(10px, 1.5vw, 12px);
  padding: clamp(0.75rem, 2vw, 1rem);
  backdrop-filter: blur(10px);
  min-height: 250px;
}

/* 历史记录面板 */
.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.history-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.history-tab {
  padding: 0.875rem 1.25rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 8px 8px 0 0;
}

.history-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
}

.history-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: rgba(59, 130, 246, 0.1);
}

.tab-icon {
  font-size: 1rem;
}

.history-content {
  position: relative;
  min-height: 320px;
}

.history-list {
  list-style: none;
  display: none;
}

.history-list.active {
  display: block;
}

.history-list li {
  padding: 0.875rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all 0.2s;
  border-radius: 6px;
  margin-bottom: 0.25rem;
}

.history-list li:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  padding-left: 1.25rem;
}

.history-list li:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

/* 加载状态 */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
  font-size: 1rem;
}

/* 响应式设计 - 使用更灵活的断点 */
@media (max-width: 1600px) {
  .main-content {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  }
}

@media (max-width: 1200px) {
  .main-content {
    grid-template-columns: 1fr;
  }
  
  .bottom-section {
    grid-template-columns: 1fr;
  }
  
  .right-panel {
    order: -1; /* 在小屏幕上，控制面板显示在上方 */
  }
}

@media (max-width: 900px) {
  .top-nav {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .nav-content {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }
  
  .nav-back {
    order: -1;
    width: 100%;
    justify-content: center;
  }
  
  .nav-title {
    width: 100%;
    justify-content: center;
  }
  
  .nav-title .title-text {
    font-size: var(--font-md);
  }
  
  .main-content,
  .main-content-full,
  .bottom-section {
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
  }
  
  .nav-cards {
    gap: var(--spacing-sm);
  }
  
  .nav-card {
    padding: var(--spacing-md);
  }
  
  .sensor-cards {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  }
  
  .device-cards {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 100px), 1fr));
  }
  
  .control-actions {
    flex-direction: column;
  }
  
  .btn-small,
  .btn-secondary,
  .btn-primary,
  .btn-danger {
    width: 100%;
  }
  
  .chart-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .time-range-buttons {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
  
  .time-btn {
    width: 100%;
  }
  
  .chart-wrapper {
    height: clamp(250px, 35vh, 320px);
  }
}

@media (max-width: 600px) {
  .top-nav {
    padding: var(--spacing-xs) var(--spacing-sm);
  }
  
  .nav-content {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }
  
  .nav-back {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }
  
  .main-content,
  .main-content-full,
  .bottom-section {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }
  
  .nav-card {
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-md);
  }
  
  .nav-card-icon {
    font-size: 2.5rem;
  }
  
  .nav-card-arrow {
    display: none;
  }
  
  .history-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .sensor-cards {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }
  
  .device-cards {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 90px), 1fr));
    gap: var(--spacing-xs);
  }
  
  .control-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
  
  .device-mode {
    align-self: flex-end;
  }
  
  .input-group {
    flex-wrap: wrap;
  }
  
  .color-picker-group {
    flex-wrap: wrap;
  }
  
  .status-info {
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: flex-start;
  }
  
  .history-tabs {
    flex-wrap: wrap;
  }
  
  .history-tab {
    flex: 1;
    min-width: 80px;
    justify-content: center;
  }
}

@media (max-width: 400px) {
  .device-cards {
    grid-template-columns: 1fr;
  }
  
  .sensor-card-value {
    font-size: clamp(1.75rem, 8vw, 2.25rem);
  }
  
  .chart-wrapper {
    height: clamp(220px, 30vh, 280px);
    padding: var(--spacing-xs);
  }
  
  .control-body {
    padding: var(--spacing-sm);
  }
}

/* 横屏手机优化 */
@media (max-width: 900px) and (orientation: landscape) {
  .main-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .bottom-section {
    grid-template-columns: 1fr 1fr;
  }
  
  .chart-wrapper {
    height: clamp(200px, 30vh, 250px);
  }
}

/* 超宽屏优化 */
@media (min-width: 1920px) {
  .main-content {
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
  }
  
  .bottom-section {
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-lg) var(--spacing-lg);
  }
  
  .sensor-cards {
    gap: var(--spacing-lg);
  }
  
  .device-cards {
    gap: var(--spacing-lg);
  }
}