.detail { max-width:1160px; margin:auto; padding:48px 28px 70px; }
.detail-shell { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start; }
.detail-media { background:#fff; border:1px solid var(--line); border-radius:24px; overflow:hidden; box-shadow:var(--shadow); position:sticky; top:100px; }
.detail-media img { width:100%; aspect-ratio:1/1; object-fit:cover; display:block; }
.detail-placeholder { aspect-ratio:1/1; display:grid; place-items:center; font-family:'Playfair Display',serif; font-size:100px; color:#c8cdd2; background:#f0f2ef; }
.detail-badge { display:inline-flex; background:var(--accent-soft); color:#09664f; border-radius:999px; padding:7px 11px; font-size:11px; font-weight:700; margin-bottom:14px; }
.detail-title { font-family:'Playfair Display',serif; font-size:48px; line-height:1.08; letter-spacing:-.03em; margin:0 0 15px; }
.detail-desc { color:var(--muted); font-size:14px; line-height:1.75; margin-bottom:25px; }
.feature-list { list-style:none; margin:0 0 28px; padding:20px 0; border-top:1px solid var(--line); border-bottom:1px solid var(--line); display:grid; gap:11px; }
.feature-list li { display:flex; gap:10px; font-size:13px; }
.feature-list li:before { content:'✓'; color:var(--accent); font-weight:700; }
.package-label { font-size:12px; color:var(--muted); margin-bottom:10px; }
.package-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:10px; margin-bottom:20px; }
.package-option { display:block; border:1px solid var(--line); border-radius:15px; padding:15px; background:#fff; cursor:pointer; transition:.2s; }
.package-option:hover { border-color:#b9aa8a; }
.package-option:has(input:checked) { border-color:var(--gold); background:#fffaf1; box-shadow:0 0 0 2px rgba(177,132,63,.08); }
.package-option.disabled { opacity:.45; cursor:not-allowed; }
.package-option input { display:none; }
.package-name { font-size:12px; color:#6d7683; margin-bottom:5px; }
.package-price { font-family:'Playfair Display',serif; font-size:20px; }
.package-stock { font-size:10px; color:#b1843f; margin-top:5px; }
.buy-btn { width:100%; border:0; border-radius:999px; padding:14px; background:var(--gold); color:#fff; font-size:13px; font-weight:700; cursor:pointer; box-shadow:0 10px 24px rgba(177,132,63,.2); }
@media(max-width:850px){.detail{padding:35px 18px}.detail-shell{grid-template-columns:1fr}.detail-media{position:static}.detail-title{font-size:39px}}
@media(max-width:520px){.package-grid{grid-template-columns:1fr}}