*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;padding:20px}.container{max-width:1200px;margin:0 auto;background:white;border-radius:20px;box-shadow:0 20px 60px rgba(0,0,0,.3);overflow:hidden}.header{background:linear-gradient(135deg,#667eea,#764ba2);color:white;padding:30px;text-align:center}.header h1{font-size:2.5em;margin-bottom:10px}.header p{opacity:.9;font-size:1.1em}.content{padding:40px}.form-section{background:#f8f9fa;padding:30px;border-radius:15px;margin-bottom:30px}.form-group,.form-row{margin-bottom:20px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:20px;gap:20px}label{display:block;margin-bottom:8px;font-weight:600;color:#333;font-size:14px}input,select{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:16px;transition:border-color .3s}input:focus,select:focus{outline:none;border-color:#667eea}.btn{background:linear-gradient(135deg,#667eea,#764ba2);color:white;border:none;padding:15px 40px;font-size:18px;font-weight:600;border-radius:8px;cursor:pointer;transition:transform .2s,box-shadow .2s;width:100%;margin-top:10px}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(102,126,234,.4)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.output-section{margin-top:30px}.output-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.output-header h2{color:#333}.copy-btn{background:#28a745;color:white;border:none;padding:8px 20px;border-radius:6px;cursor:pointer;font-size:14px;transition:background .3s}.copy-btn:hover{background:#218838}.output{background:#1e1e1e;color:#d4d4d4;padding:20px;border-radius:10px;font-family:Courier New,monospace;font-size:14px;max-height:600px;overflow-y:auto;white-space:pre-wrap;word-wrap:break-word}.loading{text-align:center;padding:40px;color:#667eea;font-size:18px}.error{background:#f8d7da;color:#721c24;border-radius:8px;border:1px solid #f5c6cb}.error,.success{padding:15px;margin-top:20px}.success{background:#d4edda;color:#155724;border-radius:8px;border:1px solid #c3e6cb}