:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;color:#222;background:#f6f7f8}body{margin:0}.page{max-width:640px;margin:40px auto;padding:0 16px}.card{background:#fff;border:1px solid #ddd;border-radius:8px;padding:20px}h1{font-size:20px;margin:0 0 6px}.subtitle{font-size:13px;color:#666;margin-bottom:18px}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}label{font-size:13px;color:#444}input,select,button{font-size:14px;padding:8px 10px;border-radius:6px;border:1px solid #ccc}input:focus,select:focus{outline:none;border-color:#888}button{cursor:pointer;background:#f3f3f3}button:hover{background:#e9e9e9}button:disabled{opacity:.6;cursor:default}.status{font-size:13px;margin-bottom:12px;color:#555}.error{padding:10px;border:1px solid #f2b6b6;background:#fff0f0;border-radius:6px;margin-bottom:14px}.log{background:#fafafa;border:1px solid #ddd;border-radius:6px;padding:10px;font-family:monospace;font-size:12px;white-space:pre-wrap;max-height:220px;overflow-y:auto}