.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.copyBtn{position:relative;background:none;border:none;cursor:pointer;padding:8px;border-radius:4px;transition:all .3s ease}.copyBtn:hover{background-color:#f5f5f5}.copyBtn .check-icon,.copyBtn .icon{font-size:16px;color:#666;transition:all .3s ease}.copyBtn .check-icon{width:16px;height:16px}.copyBtn.copied{background-color:#e8f5e8}.copyBtn.copied .check-icon,.copyBtn.copied .icon{color:#28a745;transform:scale(1.1)}.copyBtn.copied:after{content:"복사됨!";position:absolute;top:-30px;left:50%;transform:translateX(-50%);background-color:#333;color:#fff;padding:4px 8px;border-radius:4px;font-size:12px;white-space:nowrap;opacity:0;animation:fadeInOut 2s ease-in-out}@keyframes fadeInOut{0%{opacity:0;transform:translateX(-50%) translateY(5px)}20%{opacity:1;transform:translateX(-50%) translateY(0)}80%{opacity:1;transform:translateX(-50%) translateY(0)}to{opacity:0;transform:translateX(-50%) translateY(-5px)}}.expert-section{margin-top:30px;padding-top:20px;border-top:2px solid #f0f0f0}.expert-section h3{margin-bottom:20px;color:#333;font-size:18px;font-weight:600}.expert-section .form-group{margin-bottom:20px}.expert-section textarea{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit;resize:vertical;min-height:100px}.expert-section textarea:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 2px rgba(0,123,255,.25)}