.tool-container{max-width:900px;margin:0 auto;padding:20px 15px;}
.text-input{width:100%;height:220px;padding:12px;border:1px solid #e5e7eb;border-radius:8px;resize:none;outline:none;font-size:14px;line-height:1.7;margin-bottom:15px;}
.text-input:focus{border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,0.1);}
.btn-group{display:flex;gap:12px;margin-bottom:15px;flex-wrap:wrap;}
.tool-btn{padding:9px 20px;border-radius:6px;border:none;font-size:14px;cursor:pointer;transition:all 0.2s;}
.btn-extract{background:#3b82f6;color:#fff;}
.btn-extract:hover{background:#2563eb;}
.btn-clear{background:#f3f4f6;color:#333;}
.btn-clear:hover{background:#e5e7eb;}
.btn-copy{background:#10b981;color:#fff;}
.btn-copy:hover{background:#059669;}
.result-box{width:100%;min-height:160px;padding:12px;border:1px solid #e5e7eb;border-radius:8px;background:#f9fafb;font-size:14px;line-height:1.8;word-break:break-all;}
.tip-text{font-size:13px;color:#6b7280;margin:8px 0;}