:root{
  --bg:#f7f8fb;
  --card:#ffffff;
  --accent:#2563eb;
  --muted:#6b7280;
}
*{box-sizing:border-box}
body{font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:#111;margin:0;padding:24px}
.container{max-width:880px;margin:0 auto;background:var(--card);padding:20px;border-radius:8px;box-shadow:0 6px 24px rgba(16,24,40,0.08)}
h1{margin:0 0 12px;font-size:20px}
label{display:block;margin-top:12px;margin-bottom:6px;font-weight:600}
textarea{width:100%;padding:12px;border:1px solid #e6e9ef;border-radius:6px;font-size:14px;resize:vertical}
.controls{display:flex;gap:8px;align-items:center;margin-top:12px}
select{padding:8px;border-radius:6px;border:1px solid #d5dbe7}
button{background:var(--accent);color:#fff;border:none;padding:8px 12px;border-radius:6px;cursor:pointer}
button.secondary{background:#eef2ff;color:var(--accent);border:1px solid #e0e7ff}
.meta{display:flex;gap:16px;margin-top:10px;color:var(--muted);font-size:13px}
.notice{margin-top:18px;font-size:12px;color:var(--muted)}

@media (max-width:560px){.controls{flex-direction:column;align-items:stretch}button,select{width:100%}}