:root{--paper:#fff8ee;--card:#fffdf8;--ink:#3b342e;--muted:#786f66;--line:#e5d9c8;--accent:#292722}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Noto Sans TC",sans-serif}.commerce-shell{max-width:980px;margin:auto;padding:72px 22px 90px}.commerce-top{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:36px}.commerce-top img{width:118px}.commerce-top a{color:var(--muted);text-decoration:none}.checkout-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.panel{background:rgba(255,253,248,.94);border:1px solid var(--line);border-radius:28px;padding:30px;box-shadow:0 18px 50px rgba(70,55,40,.06)}.eyebrow{font-size:11px;letter-spacing:.16em;color:#a9862d}.panel h1{font-size:34px;font-weight:500;margin:10px 0}.muted{color:var(--muted);line-height:1.8}.field{margin:22px 0}.field label{display:block;font-size:13px;margin-bottom:8px}.field input{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:white;font-size:16px}.promo-row{display:grid;grid-template-columns:1fr auto;gap:10px}.btn{border:0;border-radius:999px;padding:14px 20px;background:var(--accent);color:white;cursor:pointer;font-size:14px;text-decoration:none;display:inline-block}.btn.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}.summary-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #eee5da}.summary-row.total{font-size:21px;border-bottom:0;padding-top:18px}.notice{font-size:12px;line-height:1.7;color:var(--muted);margin-top:16px}.status{min-height:22px;font-size:13px;margin-top:8px}.ok{color:#46634f}.bad{color:#8a4d46}.dev-banner{background:#efe7da;border:1px dashed #b9a58b;border-radius:14px;padding:12px 14px;font-size:12px;line-height:1.6;margin-bottom:18px}.check{display:flex;gap:9px;align-items:flex-start;font-size:13px;line-height:1.6;margin:16px 0}.check input{margin-top:4px}@media(max-width:760px){.checkout-grid{grid-template-columns:1fr}.commerce-shell{padding-top:32px}.panel{padding:22px}.panel h1{font-size:29px}}