.preview-card{border:1px solid #ddd;border-radius:8px;overflow:hidden;margin-bottom:20px;max-width:500px}
.preview-img{background:#e9ecef;height:180px;display:flex;align-items:center;justify-content:center;color:#999;font-size:14px}
.preview-img img{width:100%;height:100%;object-fit:cover}
.preview-body{padding:12px}
.preview-url{font-size:12px;color:#666;margin-bottom:4px}
.preview-title{font-size:16px;font-weight:bold;margin-bottom:4px}
.preview-desc{font-size:14px;color:#333}
#htmlOutput{font-family:monospace;font-size:13px;background:#f8f9fa}