:root { --primary:#ff5000; --bg:#f5f5f5; --card:#fff; --text:#222; --muted:#999; }
* { box-sizing:border-box; margin:0; padding:0; -webkit-tap-highlight-color:transparent; }
body { font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif; background:var(--bg); color:var(--text); }
.topbar { position:sticky; top:0; z-index:10; background:var(--primary); color:#fff; padding:10px 12px; display:flex; gap:8px; align-items:center; }
.topbar input { flex:1; border:none; border-radius:18px; padding:8px 14px; font-size:14px; outline:none; }
.topbar .cart-btn { background:rgba(255,255,255,.2); border:none; color:#fff; padding:6px 12px; border-radius:16px; font-size:14px; position:relative; }
.topbar .cart-btn .badge { position:absolute; top:-4px; right:-4px; background:#fff; color:var(--primary); border-radius:10px; font-size:11px; padding:0 5px; font-weight:700; }
.layout { display:flex; min-height:calc(100vh - 52px); }
.sidebar { width:88px; background:#fff; flex-shrink:0; overflow-y:auto; }
.sidebar .cat { padding:14px 6px; text-align:center; font-size:13px; color:#555; border-left:3px solid transparent; cursor:pointer; }
.sidebar .cat.active { color:var(--primary); border-left-color:var(--primary); background:#fff7f3; font-weight:600; }
.main { flex:1; padding:10px; overflow-y:auto; }
.section-title { font-size:15px; font-weight:700; margin:6px 2px 10px; }
.grid { display:grid; grid-template-columns:repeat(2,1fr); gap:10px; }
.card { background:var(--card); border-radius:10px; overflow:hidden; cursor:pointer; }
.card .thumb { height:120px; background:linear-gradient(135deg,#ffe7d6,#ffd0b0); display:flex; align-items:center; justify-content:center; font-size:40px; }
.card .info { padding:8px; }
.card .name { font-size:13px; line-height:1.3; height:34px; overflow:hidden; }
.card .price { color:var(--primary); font-weight:700; margin-top:4px; }
.card .price small { font-size:11px; }
.card .merchant { font-size:11px; color:var(--muted); margin-top:2px; }
.overlay { position:fixed; inset:0; background:rgba(0,0,0,.45); z-index:20; display:none; }
.overlay.show { display:block; }
.sheet { position:fixed; left:0; right:0; bottom:0; background:#fff; border-radius:14px 14px 0 0; z-index:21; transform:translateY(100%); transition:transform .25s; max-height:85vh; overflow-y:auto; }
.sheet.show { transform:translateY(0); }
.sheet .head { padding:16px; border-bottom:1px solid #eee; display:flex; justify-content:space-between; align-items:center; }
.sheet .body { padding:16px; }
.sheet .close { font-size:22px; color:#999; cursor:pointer; }
.btn { background:var(--primary); color:#fff; border:none; padding:10px 18px; border-radius:22px; font-size:15px; cursor:pointer; }
.btn.block { width:100%; }
.btn.ghost { background:#fff; color:var(--primary); border:1px solid var(--primary); }
.sku-row { display:flex; flex-wrap:wrap; gap:8px; margin:10px 0; }
.sku { border:1px solid #ddd; border-radius:16px; padding:6px 14px; font-size:13px; cursor:pointer; }
.sku.active { border-color:var(--primary); color:var(--primary); background:#fff7f3; }
.qty { display:inline-flex; align-items:center; gap:12px; margin-top:8px; }
.qty button { width:28px; height:28px; border-radius:50%; border:1px solid #ddd; background:#fff; font-size:16px; }
.cart-item { display:flex; gap:10px; padding:10px 0; border-bottom:1px solid #f0f0f0; align-items:center; }
.cart-item .ci-thumb { width:54px; height:54px; border-radius:8px; background:linear-gradient(135deg,#ffe7d6,#ffd0b0); flex-shrink:0; }
.empty { text-align:center; color:var(--muted); padding:60px 0; }
.field { width:100%; padding:10px 12px; border:1px solid #ddd; border-radius:8px; margin:8px 0; font-size:14px; }
.tabs { display:flex; border-bottom:1px solid #eee; }
.tabs .tab { flex:1; text-align:center; padding:10px; font-size:14px; color:#666; cursor:pointer; }
.tabs .tab.active { color:var(--primary); font-weight:700; border-bottom:2px solid var(--primary); }
.order-card { background:#fff; border-radius:10px; padding:12px; margin-bottom:10px; }
.order-card .row { display:flex; justify-content:space-between; font-size:13px; margin:3px 0; }
.toast { position:fixed; bottom:80px; left:50%; transform:translateX(-50%); background:rgba(0,0,0,.8); color:#fff; padding:10px 18px; border-radius:20px; z-index:99; opacity:0; transition:opacity .2s; font-size:14px; }
.toast.show { opacity:1; }

/* ===== 营销中心 ===== */
.mkt-assets { display:flex; background:linear-gradient(135deg,#ff7a3d,#ff5000); color:#fff; border-radius:12px; padding:16px 10px; text-align:center; margin-bottom:12px; }
.mkt-assets > div { flex:1; }
.mkt-assets .num { font-size:17px; font-weight:700; }
.mkt-assets .lbl { font-size:12px; opacity:.9; margin-top:2px; }
.mkt-block { background:#fff; border-radius:12px; padding:14px; margin-bottom:12px; }
.mkt-title { font-size:15px; font-weight:700; margin-bottom:8px; }
.mkt-row { display:flex; justify-content:space-between; align-items:center; padding:7px 0; border-top:1px dashed #eee; font-size:14px; }
.mkt-row:first-of-type { border-top:none; }
.mkt-row b { color:#333; }
.coupon { display:flex; align-items:center; justify-content:space-between; background:#fff8f3; border:1px solid #ffd9c2; border-radius:10px; padding:10px 12px; margin-bottom:8px; }
.coupon .c-tag { color:var(--primary); font-weight:700; font-size:14px; }
.coupon .c-name { font-size:12px; color:#888; margin-top:2px; }
.coupon .c-btn { padding:5px 14px; font-size:13px; }
.coupon .c-state { font-size:12px; color:var(--primary); }
.coupon.used-used { opacity:.55; }
.coupon.used-used .c-state { color:#999; }