.required{color:#ff4444;margin-left:4px;}.error-msg{color:#ff4444;font-size:12px;margin-top:4px;display:block;}.input.error{border:1px solid #ff4444 !important;}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background-color:#f8f8f8;padding:0;margin:0;}.calorie-page{padding:30px;padding-top:120px;max-width:600px;margin:0 auto;}.header{margin-bottom:30px;}.header .title{display:block;font-size:24px;font-weight:bold;color:#333;margin-bottom:8px;}.header .subtitle{font-size:14px;color:#666;}.input-section{background:#fff;border-radius:8px;padding:16px;box-shadow:0 2px 8px rgba(0,0,0,0.05);}.input-item{margin-bottom:20px;}.input-item:last-child{margin-bottom:0;}.input-item .label{display:block;font-size:15px;color:#666;margin-bottom:10px;}.input-item .input{height:48px;width:100%;box-sizing:border-box;background:#f5f5f5;border-radius:6px;padding:0 12px;font-size:16px;border:none;outline:none;}.input-item .input::placeholder{color:#999;}.calculate-btn{margin:30px 0;width:100%;background:#fc4a1a;color:#fff;border-radius:6px;font-size:17px;height:48px;line-height:48px;border:none;cursor:pointer;}.calculate-btn:disabled{background:#ccc;cursor:not-allowed;}.result-section{margin-top:16px;}.result-card{background:#fff;border-radius:8px;padding:16px;box-shadow:0 2px 8px rgba(0,0,0,0.05);}.result-title{display:block;font-size:18px;font-weight:500;color:#333;margin-bottom:20px;}.result-item{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;}.result-item:last-child{margin-bottom:0;}.result-item .label{font-size:15px;color:#666;}.result-item .value{font-size:18px;color:#f7b733;font-weight:bold;}