Understanding Thermistor Circuit Noise Amplification Device and Thermal Electric Coolers :root --bg: #f6f7fb; --card: #ffffff; --text: #222; --accent: #0b63d6; font-family: Arial, Helvetica, sans-serif; body margin: 0; padding: 20px; background: var(--bg); color: var(--text); line-height: 1.6; .wrap max-width: 940px; margin: