body,html{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Helvetica Neue,Arial,Noto Sans,Apple Color Emoji,Segoe UI Emoji}.container{max-width:880px;margin:0 auto;padding:24px}.card{background:#f7f7f7;padding:16px;border-radius:12px}.row{display:flex;gap:8px;align-items:center}.btn{border:1px solid #ddd;background:#fff;padding:8px 12px;border-radius:8px;cursor:pointer}.btn.primary{background:#2563eb;color:#fff;border-color:#2563eb}.input{border:1px solid #ccc;padding:8px;border-radius:8px}.list{flex-direction:column;gap:8px;margin-top:12px}.item,.list{display:flex}.item{align-items:center;justify-content:space-between;padding:12px;background:#fff;border:1px solid #eee;border-radius:8px}.total{background:#ecfdf5;border:1px solid #d1fae5}.note{color:#666;font-size:12px}h1{font-size:24px;margin-bottom:12px}h2{font-size:18px;margin:16px 0 8px}label{font-size:12px;color:#555}