body { font-family: Arial, sans-serif; background-color: #f8f9fa; }
.text-primary { color: #007bff; }
.card-header { font-weight: bold; }
.status-green { color: green; }
.status-green::before { content: '•'; margin-right: 5px; }
.toggle-switch { /* 样式化开关 */ appearance: none; width: 40px; height: 20px; background: #ccc; border-radius: 10px; transition: background 0.3s; }
.toggle-switch:checked { background: #28a745; }
.wifi-icon { float: right; font-size: 1.2em; }
/* 图表容器 */ #power-chart { max-width: 100%; }