:root{color:#1f2937;background:#f3f4f6;font-family:system-ui,-apple-system,Noto Sans TC,sans-serif}main{max-width:520px;margin:2rem auto;padding:0 1rem}form{flex-direction:column;gap:.5rem;margin-bottom:1rem;display:flex}input{border:1px solid #d1d5db;border-radius:6px;padding:.6rem;font-size:1rem}button{color:#fff;cursor:pointer;background:#2563eb;border:0;border-radius:6px;padding:.5rem .9rem;font-size:.95rem}button.secondary{background:#6b7280}button.danger{background:#dc2626}.row{gap:.5rem;display:flex}.between{justify-content:space-between;align-items:center}.message{background:#fef3c7;border-radius:6px;padding:.6rem}.hint{color:#6b7280}ul{flex-direction:column;gap:.5rem;padding:0;list-style:none;display:flex}li{background:#fff;border-radius:8px;justify-content:space-between;align-items:center;gap:1rem;padding:.7rem;display:flex}li small{color:#6b7280;display:block}