.png2svg-fe{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',Arial,sans-serif;max-width:1100px;margin:20px auto;padding:16px}
.png2svg-fe-header h2{margin:0 0 4px;font-size:28px}
.png2svg-fe-header p{margin:0 0 16px;color:#444}
.png2svg-fe-panel{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.png2svg-fe-btn{display:inline-block;padding:10px 14px;border:1px solid #ddd;border-radius:8px;background:#f5f5f5;cursor:pointer;text-decoration:none}
.png2svg-fe-btn:hover{background:#eee}
.png2svg-fe-btn-primary{background:#0ea5e9;color:#fff;border-color:#0ea5e9}
.png2svg-fe-btn-primary:hover{filter:brightness(0.95)}
.png2svg-fe-file input[type=file]{display:none}
.png2svg-fe-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.png2svg-fe-card{background:#fff;border:1px solid #eee;border-radius:10px;padding:12px}
.png2svg-fe-card h3{margin-top:0}
#png2svg-canvas{width:100%;height:auto;display:block;background:#fafafa;border:1px dashed #ddd;border-radius:8px}
.png2svg-fe-svgwrap{min-height:180px;border:1px dashed #ddd;border-radius:8px;background:#fafafa;display:flex;align-items:center;justify-content:center;overflow:auto}
.png2svg-fe-form{display:grid;grid-template-columns:1fr;gap:8px}
.png2svg-fe-form label{display:flex;justify-content:space-between;gap:10px;align-items:center}
.png2svg-fe-form input{width:120px}
.png2svg-fe-note{margin-top:10px;color:#555;font-size:14px}