:root{--bg:#f4f5f7;--card:#ffffff;--text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--brand:#009ee3;--brand-dark:#0081ba;--ok:#16a34a;--warn:#d97706;--err:#dc2626;--radius:12px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.container{max-width:980px;margin:0 auto;padding:24px 20px 64px}.site-header{background:var(--card);border-bottom:1px solid var(--border)}.site-header .inner{max-width:980px;margin:0 auto;padding:16px 20px;display:flex;align-items:center;justify-content:space-between}.logo{font-weight:700;font-size:1.15rem}.logo span{color:var(--brand)}.cart-link{gap:8px;font-weight:600;background:var(--bg);padding:8px 14px;border-radius:999px;border:1px solid var(--border)}.cart-badge,.cart-link{display:inline-flex;align-items:center}.cart-badge{background:var(--brand);color:#fff;border-radius:999px;font-size:.78rem;min-width:20px;height:20px;justify-content:center;padding:0 6px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.product{display:grid;grid-template-columns:280px 1fr;grid-gap:24px;gap:24px}@media (max-width:640px){.product{grid-template-columns:1fr}}.product-image{background:var(--bg);border-radius:var(--radius);border:1px solid var(--border);width:100%;aspect-ratio:1/1;object-fit:contain;padding:16px}.product h2{margin:0 0 8px;font-size:1.4rem}.price{font-size:1.6rem;font-weight:700;margin:12px 0}.muted{color:var(--muted)}.page-title{margin:0 0 4px;font-size:1.6rem}.subtitle{color:var(--muted);margin:0 0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:1rem;font-weight:600;padding:12px 20px;border-radius:8px;border:1px solid transparent;cursor:pointer;transition:background .15s ease,opacity .15s ease}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover:not(:disabled){background:var(--brand-dark)}.btn-secondary{background:var(--card);color:var(--text);border-color:var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg)}.btn-block{width:100%}.cart-row{display:flex;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}.cart-row:last-of-type{border-bottom:none}.cart-row img{width:72px;height:72px;object-fit:contain;background:var(--bg);border-radius:8px;border:1px solid var(--border);padding:6px}.cart-row .info{flex:1 1;min-width:0}.qty{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:8px;overflow:hidden}.qty button{background:var(--bg);border:none;width:32px;height:32px;cursor:pointer;font-size:1rem}.qty span{width:40px;text-align:center}.cart-summary{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-top:20px;border-top:2px solid var(--border);font-size:1.2rem;font-weight:700}.link-trash{background:none;border:none;color:var(--err);cursor:pointer;font-size:.85rem}.status{text-align:center;padding:40px 24px}.status .icon{font-size:3rem;line-height:1}.status h1{margin:16px 0 8px}.status.ok h1{color:var(--ok)}.status.warn h1{color:var(--warn)}.status.err h1{color:var(--err)}.detail-grid{display:grid;grid-template-columns:auto 1fr;grid-gap:8px 20px;gap:8px 20px;text-align:left;max-width:460px;margin:24px auto;font-size:.92rem}.detail-grid dt{color:var(--muted)}.detail-grid dd{margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;word-break:break-all}.notice{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;border-radius:8px;padding:12px 14px;font-size:.88rem;margin-top:16px}.error-box{background:#fef2f2;border:1px solid #fecaca;color:var(--err);border-radius:8px;padding:10px 12px;font-size:.9rem;margin-top:12px}.empty{text-align:center;padding:48px 24px;color:var(--muted)}