:root{--night:#05090d;--ink:#fff7e8;--muted:rgba(255,247,232,.68);--gold:#d8b96a;--gold2:#fff0a8;--line:rgba(255,247,232,.14)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#05090d url("./assets/products/product-detail-bg.png") center top/cover fixed no-repeat;font-family:"Noto Serif SC","Songti SC","STSong","Microsoft YaHei",serif}body::before{position:fixed;inset:0;z-index:-1;content:"";background:linear-gradient(180deg,rgba(5,9,13,.64),rgba(5,9,13,.94) 58%,#05090d)}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:76px;padding:0 5vw;border-bottom:1px solid var(--line);background:rgba(5,9,13,.84);backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:.8rem}.brand-mark{width:44px;height:44px;border:1px solid rgba(216,185,106,.85);border-radius:50%;overflow:hidden}.brand-mark img{display:block;width:100%;height:100%;object-fit:cover}.brand strong,.brand small{display:block}.brand small{color:var(--muted);font:.72rem/1.3 "Microsoft YaHei",sans-serif;letter-spacing:.12em}nav{display:flex;gap:.8rem}nav a{padding:.7rem 1rem;border:1px solid var(--line);font:700 .9rem/1 "Microsoft YaHei",sans-serif;color:var(--muted)}main{padding:3rem 5vw 5rem}.checkout-hero{max-width:920px;margin-bottom:2rem}.eyebrow{margin:0 0 .7rem;color:var(--gold2);font:700 .76rem/1.2 "Microsoft YaHei",sans-serif;letter-spacing:.22em;text-transform:uppercase}h1{margin:0;font-size:clamp(3.4rem,8vw,7rem);line-height:.98}h2{margin:.1rem 0 1rem;font-size:clamp(1.7rem,3vw,3rem);line-height:1.12}p{line-height:1.9;color:var(--muted)}.checkout-grid{display:grid;grid-template-columns:minmax(320px,.85fr) minmax(360px,1fr);gap:1.2rem;align-items:start}.panel{border:1px solid var(--line);background:linear-gradient(180deg,rgba(12,16,16,.82),rgba(10,12,12,.62));box-shadow:0 22px 70px rgba(0,0,0,.28);backdrop-filter:blur(12px);padding:1.35rem}.order-form{display:grid;gap:1rem}.order-form label{display:grid;gap:.45rem;color:var(--gold2);font-weight:700}.order-form input,.order-form textarea{width:100%;border:1px solid rgba(216,185,106,.32);background:rgba(5,9,13,.58);color:var(--ink);padding:.85rem 1rem;outline:none}.order-form input:focus,.order-form textarea:focus{border-color:rgba(255,240,168,.8)}fieldset{margin:0;padding:1rem;border:1px solid rgba(216,185,106,.24)}legend{padding:0 .4rem;color:var(--gold2);font-weight:700}.radio{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center;gap:.6rem;color:var(--ink)!important}.radio input{width:auto}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 1.4rem;border:1px solid rgba(216,185,106,.55);font:700 .95rem/1 "Microsoft YaHei",sans-serif;cursor:pointer}.btn.primary{color:#1b1308;background:linear-gradient(135deg,#fff0a8,#d8b96a 58%,#9b702d)}.btn.secondary{color:var(--gold2);background:rgba(216,185,106,.08)}.form-note{font-size:.92rem}.cart-list{display:grid;gap:.75rem}.cart-row{display:grid;grid-template-columns:64px 1fr auto;gap:.8rem;align-items:center;padding:.8rem;border:1px solid rgba(255,247,232,.1);background:rgba(5,9,13,.4)}.cart-row img{width:64px;height:64px;object-fit:cover}.cart-row strong,.cart-row span{display:block}.cart-row span{margin-top:.25rem;color:var(--muted);font-size:.9rem}.cart-row input{width:72px;border:1px solid rgba(216,185,106,.32);background:rgba(5,9,13,.58);color:var(--ink);padding:.5rem}.cart-total{display:flex;align-items:center;justify-content:space-between;margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(216,185,106,.2);color:var(--gold2);font-size:1.35rem}.empty{padding:1rem;border:1px solid rgba(216,185,106,.24);color:var(--muted)}.payment-area{margin-top:1rem}.success-box{border:1px solid rgba(216,185,106,.42);background:rgba(216,185,106,.08);padding:1rem}.success-box h3{margin:.2rem 0;color:var(--gold2);font-size:1.35rem}.qr-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;margin-top:1rem}.qr-card{padding:1rem;border:1px solid rgba(216,185,106,.24);background:rgba(5,9,13,.42);text-align:center}.qr-card img,.qr-placeholder{display:grid;width:100%;aspect-ratio:1;place-items:center;border:1px solid rgba(255,247,232,.12);background:rgba(255,255,255,.035);color:var(--muted)}.qr-card strong{display:block;margin-top:.8rem;color:var(--gold2)}.error{color:#ffd6c7}.hidden{display:none!important}@media(max-width:960px){nav{display:none}.checkout-grid{grid-template-columns:1fr}}@media(max-width:560px){main{padding:2rem 1.2rem 4rem}.cart-row{grid-template-columns:54px 1fr}.cart-row input{grid-column:2}.qr-grid{grid-template-columns:1fr}}
.flow-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.4rem}.back-link{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 1rem;border:1px solid rgba(216,185,106,.42);background:rgba(5,9,13,.38);color:var(--gold2);font:700 .88rem/1 "Microsoft YaHei",sans-serif;cursor:pointer}.back-link:hover{border-color:rgba(255,240,168,.8);background:rgba(216,185,106,.1)}.qr-grid.single{grid-template-columns:minmax(240px,360px);justify-content:start}.qr-card.aggregate-qr{text-align:left}.qr-card.aggregate-qr img{background:#fff;padding:.8rem;object-fit:contain}.qr-card.aggregate-qr strong{font-size:1.05rem}.qr-card.aggregate-qr span{display:block;margin-top:.5rem;color:var(--muted);font-size:.9rem;line-height:1.7}@media(max-width:560px){.back-link{width:100%}.qr-grid.single{grid-template-columns:1fr}}

/* Form group (replaces label-wrapping for complex fields) */
.form-group{display:grid;gap:.45rem}
.group-label{color:var(--gold2);font-weight:700;font-size:.95rem}

/* Region selector (province/city/district) */
.region-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.5rem}
.region-row select{width:100%;border:1px solid rgba(216,185,106,.32);background:rgba(5,9,13,.58);color:var(--ink);padding:.85rem .6rem;outline:none;-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23d8b96a' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .6rem center;font-size:.9rem;cursor:pointer}
.region-row select:focus{border-color:rgba(255,240,168,.8)}
.region-row select:disabled{opacity:.5;cursor:not-allowed}
.region-row select option{background:#0a0e12;color:var(--ink)}

/* Detail address row */
.detail-row{display:grid;grid-template-columns:1fr auto;gap:.5rem;align-items:start}
.detail-row input{width:100%}

/* Geo-locate button — refined style */
.geo-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;white-space:nowrap;min-height:48px;padding:0 1rem;border:1px solid rgba(216,185,106,.35);border-radius:6px;background:linear-gradient(135deg,rgba(216,185,106,.06),rgba(216,185,106,.12));color:var(--gold2);font:700 .82rem/1 "Microsoft YaHei",sans-serif;cursor:pointer;transition:all .25s ease;position:relative;overflow:hidden}
.geo-btn::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,240,168,.06),rgba(216,185,106,.1));opacity:0;transition:opacity .25s ease}
.geo-btn:hover{border-color:rgba(255,240,168,.7);box-shadow:0 0 12px rgba(216,185,106,.15)}
.geo-btn:hover::before{opacity:1}
.geo-btn:active{transform:scale(.97)}
.geo-icon{flex-shrink:0;opacity:.85}
.geo-text{position:relative}

/* Payment amount highlight */
.pay-amount-box{display:flex;align-items:center;gap:.8rem;margin:.8rem 0;padding:.8rem 1rem;border:2px solid rgba(216,185,106,.55);background:rgba(216,185,106,.1);border-radius:4px}
.pay-label{color:var(--muted);font-size:.92rem}
.pay-value{color:var(--gold2);font-size:1.6rem;font-weight:700}
.copy-amount-btn{margin-left:auto;padding:.5rem .8rem;border:1px solid rgba(216,185,106,.42);background:rgba(5,9,13,.5);color:var(--gold2);font:700 .8rem/1 "Microsoft YaHei",sans-serif;cursor:pointer;white-space:nowrap}
.copy-amount-btn:hover{border-color:rgba(255,240,168,.8);background:rgba(216,185,106,.12)}

@media(max-width:560px){
  .region-row{grid-template-columns:1fr}
  .detail-row{grid-template-columns:1fr}
  .geo-btn{width:100%;justify-content:center;margin-top:.3rem}
  .pay-amount-box{flex-wrap:wrap}
  .copy-amount-btn{margin-left:0}
}