.page{max-width:960px;margin:0 auto;padding:40px 20px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.hero{background:#f5f5f5;border-radius:20px;margin-bottom:24px;padding:32px}.card{border:1px solid #ddd;border-radius:16px;margin-bottom:24px;padding:24px}input,textarea{box-sizing:border-box;width:100%;margin:10px 0;padding:10px;display:block}textarea{min-height:120px}button{cursor:pointer;padding:10px 16px}pre{white-space:pre-wrap;word-break:break-word;color:#0f0;background:#111;border-radius:8px;padding:12px}