/* Fluid 流畅版 — 单页选品 + 底部常驻结算栏
   配色：深空蓝 / 白 / 冷灰                                   */

:root{
  --fl-primary:#3369ff;
  --fl-primary-dark:#2454e0;
  --fl-accent:#698df3;
  --fl-danger:#e5484d;
  --fl-ok:#129c6e;
  --fl-warn:#c77700;

  --fl-ground:#f4f7fc;
  --fl-surface:#ffffff;
  --fl-surface-2:#f7f9fc;
  --fl-line:#e2e8f2;
  --fl-line-soft:#eef2f8;

  --fl-ink:#111826;
  --fl-ink-2:#4b566b;
  --fl-ink-3:#8390a5;

  --fl-r:14px;
  --fl-r-sm:10px;
  --fl-shadow:0 1px 2px rgba(17,24,38,.04), 0 6px 20px rgba(17,24,38,.06);
  --fl-shadow-lift:0 8px 28px rgba(51,105,255,.22);
  --fl-bar-h:76px;
}

*{box-sizing:border-box}
html{font-size:15px}
body.fl-body{
  margin:0;
  background:var(--fl-ground);
  color:var(--fl-ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  line-height:1.6;
  padding-bottom:calc(var(--fl-bar-h) + 24px);
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}

/* ---------- 顶栏 ---------- */
.fl-nav{
  position:sticky;top:0;z-index:900;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--fl-line);
}
.fl-nav-in{
  max-width:1180px;margin:0 auto;padding:0 20px;height:60px;
  display:flex;align-items:center;gap:16px;
}
.fl-brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:-.01em}
.fl-brand img{width:26px;height:26px;border-radius:7px;object-fit:cover}
.fl-nav-sp{flex:1}
.fl-nav-link{
  color:var(--fl-ink-2);font-size:14px;padding:7px 12px;border-radius:9px;
  transition:background .16s,color .16s;white-space:nowrap;
}
.fl-nav-link:hover{background:var(--fl-surface-2);color:var(--fl-ink)}
.fl-nav-cta{
  background:var(--fl-primary);color:#fff;font-size:14px;font-weight:600;
  padding:7px 15px;border-radius:9px;transition:background .16s;
}
.fl-nav-cta:hover{background:var(--fl-primary-dark);color:#fff}

/* ---------- 版心 / 区块 ---------- */
.fl-wrap{max-width:1180px;margin:0 auto;padding:22px 20px 0}
.fl-sec{
  background:var(--fl-surface);border:1px solid var(--fl-line);
  border-radius:var(--fl-r);box-shadow:var(--fl-shadow);
  padding:18px 20px;margin-bottom:16px;
}
.fl-sec-t{
  display:flex;align-items:center;gap:9px;
  font-size:15px;font-weight:700;margin:0 0 14px;color:var(--fl-ink);
}
.fl-sec-t::before{
  content:"";width:3px;height:15px;border-radius:2px;
  background:var(--fl-primary);flex:none;
}
.fl-sec-t .fl-count{
  font-size:12px;font-weight:500;color:var(--fl-ink-3);
  font-variant-numeric:tabular-nums;
}
.fl-notice{color:var(--fl-ink-2);font-size:14px}
.fl-notice p{margin:0 0 6px}
.fl-notice p:last-child{margin-bottom:0}
.fl-notice a{color:var(--fl-primary)}

/* ---------- 搜索 ---------- */
.fl-search{display:flex;gap:9px}
.fl-search input{
  flex:1;height:40px;padding:0 14px;font-size:14px;
  border:1px solid var(--fl-line);border-radius:var(--fl-r-sm);
  background:var(--fl-surface-2);color:var(--fl-ink);outline:none;
  transition:border-color .16s, box-shadow .16s, background .16s;
}
.fl-search input:focus{
  border-color:var(--fl-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(51,105,255,.12);
}
.fl-search input::placeholder{color:var(--fl-ink-3)}

/* ---------- 分类 ---------- */
.fl-cats{display:flex;flex-wrap:wrap;gap:10px}
.fl-cat{
  border:1px solid var(--fl-line);border-radius:var(--fl-r-sm);
  padding:10px 15px;cursor:pointer;background:var(--fl-surface-2);
  transition:border-color .16s,background .16s,transform .16s,box-shadow .16s;
  min-width:132px;position:relative;
}
.fl-cat:hover{border-color:#c4d3ee;background:#fff;transform:translateY(-1px)}
.fl-cat.on{
  border-color:var(--fl-primary);background:var(--fl-primary);color:#fff;
  box-shadow:var(--fl-shadow-lift);
}
.fl-cat-n{font-size:14px;font-weight:600;display:block;line-height:1.4}
.fl-cat-c{font-size:12px;color:var(--fl-ink-3);font-variant-numeric:tabular-nums}
.fl-cat.on .fl-cat-c{color:rgba(255,255,255,.8)}
.fl-cat.on::after{
  content:"✓";position:absolute;right:9px;bottom:6px;
  font-size:13px;color:rgba(255,255,255,.9);font-weight:700;
}

/* ---------- 商品网格 ---------- */
.fl-goods{
  display:grid;gap:12px;
  grid-template-columns:repeat(auto-fill,minmax(196px,1fr));
}
.fl-item{
  border:1.5px solid var(--fl-line);border-radius:var(--fl-r-sm);
  background:var(--fl-surface);cursor:pointer;overflow:hidden;
  display:flex;flex-direction:column;position:relative;
  transition:border-color .16s,transform .16s,box-shadow .16s;
}
.fl-item:hover{border-color:#c4d3ee;transform:translateY(-2px);box-shadow:var(--fl-shadow)}
.fl-item.on{border-color:var(--fl-primary);box-shadow:var(--fl-shadow-lift)}
.fl-item.on::after{
  content:"";position:absolute;right:0;bottom:0;
  border-width:0 0 26px 26px;border-style:solid;
  border-color:transparent transparent var(--fl-primary) transparent;
}
.fl-item.out{opacity:.5;cursor:not-allowed}
.fl-item.out:hover{transform:none;border-color:var(--fl-line);box-shadow:none}
.fl-thumb{
  height:104px;background:var(--fl-surface-2);position:relative;overflow:hidden;
  border-bottom:1px solid var(--fl-line-soft);
}
.fl-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.fl-badge{
  position:absolute;left:8px;top:8px;font-size:11px;font-weight:600;
  padding:2px 8px;border-radius:999px;background:rgba(18,156,110,.14);
  color:var(--fl-ok);border:1px solid rgba(18,156,110,.25);
  backdrop-filter:blur(6px);
}
.fl-item-b{padding:11px 12px;display:flex;flex-direction:column;gap:7px;flex:1}
.fl-item-n{
  font-size:13.5px;font-weight:600;line-height:1.4;color:var(--fl-ink);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;min-height:2.8em;
}
.fl-item-f{display:flex;align-items:baseline;justify-content:space-between;margin-top:auto;gap:8px}
.fl-price{color:var(--fl-primary);font-weight:800;font-size:19px;line-height:1;font-variant-numeric:tabular-nums}
.fl-price .u{font-size:13px;font-weight:600;margin-right:1px}
.fl-stock{font-size:11.5px;font-weight:500;white-space:nowrap}
.fl-stock.s-hi{color:var(--fl-ok)}
.fl-stock.s-mid{color:var(--fl-warn)}
.fl-stock.s-low{color:var(--fl-danger)}
.fl-stock.s-out{color:var(--fl-ink-3)}

/* ---------- 骨架屏 ---------- */
.fl-sk{border:1.5px solid var(--fl-line);border-radius:var(--fl-r-sm);overflow:hidden;background:var(--fl-surface)}
.fl-sk-t{height:104px}
.fl-sk-l{height:12px;margin:11px 12px;border-radius:5px}
.fl-sk-l.w60{width:60%}
.fl-sk-t,.fl-sk-l{
  background:linear-gradient(90deg,#eef2f8 25%,#e3e9f3 37%,#eef2f8 63%);
  background-size:400% 100%;animation:flsk 1.3s ease infinite;
}
@keyframes flsk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 详情 / 表单 ---------- */
.fl-detail{display:none}
.fl-detail.show{display:block;animation:flin .22s ease}
@keyframes flin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.fl-desc{color:var(--fl-ink-2);font-size:14px;line-height:1.75;overflow-x:auto}
.fl-desc img{max-width:100%;height:auto;border-radius:8px}
.fl-desc p{margin:0 0 8px}

.fl-form{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.fl-fld{display:flex;flex-direction:column;gap:6px}
.fl-fld label{font-size:12.5px;font-weight:600;color:var(--fl-ink-2)}
.fl-fld label .req{color:var(--fl-danger);margin-left:2px}
.fl-fld input{
  height:40px;padding:0 13px;font-size:14px;
  border:1px solid var(--fl-line);border-radius:var(--fl-r-sm);
  background:var(--fl-surface-2);color:var(--fl-ink);outline:none;width:100%;
  transition:border-color .16s,box-shadow .16s,background .16s;
}
.fl-fld input:focus{border-color:var(--fl-primary);background:#fff;box-shadow:0 0 0 3px rgba(51,105,255,.12)}
.fl-fld input::placeholder{color:var(--fl-ink-3)}
.fl-cap{display:flex;gap:8px}
.fl-cap input{flex:1}
.fl-cap img{
  height:40px;border-radius:var(--fl-r-sm);border:1px solid var(--fl-line);
  cursor:pointer;background:#fff;
}
.fl-hint{font-size:12px;color:var(--fl-ink-3);margin:10px 0 0}

/* ---------- 底部常驻结算栏 ---------- */
.fl-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:950;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-top:1px solid var(--fl-line);
  box-shadow:0 -4px 24px rgba(17,24,38,.07);
  transform:translateY(100%);transition:transform .26s cubic-bezier(.22,1,.36,1);
}
.fl-bar.up{transform:none}
.fl-bar-in{
  max-width:1180px;margin:0 auto;padding:0 20px;
  min-height:var(--fl-bar-h);display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}
.fl-bar-name{
  display:flex;align-items:center;gap:9px;min-width:0;flex:1 1 190px;
}
.fl-bar-name img{width:34px;height:34px;border-radius:8px;object-fit:cover;flex:none;border:1px solid var(--fl-line)}
.fl-bar-name b{
  font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.fl-qty{display:flex;align-items:center;border:1px solid var(--fl-line);border-radius:var(--fl-r-sm);overflow:hidden;background:var(--fl-surface-2)}
.fl-qty button{
  width:34px;height:36px;border:0;background:transparent;cursor:pointer;
  font-size:17px;color:var(--fl-ink-2);line-height:1;transition:background .14s;
}
.fl-qty button:hover{background:#e6ecf7;color:var(--fl-primary)}
.fl-qty button:disabled{opacity:.35;cursor:not-allowed}
.fl-qty input{
  width:52px;height:36px;border:0;background:transparent;text-align:center;
  font-size:14px;font-weight:600;color:var(--fl-ink);outline:none;
  font-variant-numeric:tabular-nums;
}
.fl-qty input::-webkit-inner-spin-button,.fl-qty input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.fl-total{display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.fl-total span{font-size:12.5px;color:var(--fl-ink-3)}
.fl-total b{font-size:23px;font-weight:800;color:var(--fl-danger);font-variant-numeric:tabular-nums;line-height:1}
.fl-total b .u{font-size:14px;margin-right:1px}
.fl-pay{
  height:42px;padding:0 24px;border:0;border-radius:var(--fl-r-sm);
  background:var(--fl-primary);color:#fff;font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;transition:background .16s,transform .12s,opacity .16s;
}
.fl-pay:hover{background:var(--fl-primary-dark)}
.fl-pay:active{transform:scale(.985)}
.fl-pay:disabled{opacity:.5;cursor:not-allowed}

/* ---------- 支付方式选择层 ---------- */
.fl-mask{
  position:fixed;inset:0;z-index:1000;background:rgba(17,24,38,.45);
  backdrop-filter:blur(3px);display:none;align-items:flex-end;justify-content:center;
}
.fl-mask.show{display:flex;animation:flfade .18s ease}
@keyframes flfade{from{opacity:0}to{opacity:1}}
.fl-sheet{
  background:var(--fl-surface);width:100%;max-width:460px;
  border-radius:18px 18px 0 0;padding:20px 20px 26px;
  animation:flup .26s cubic-bezier(.22,1,.36,1);
  max-height:82vh;overflow-y:auto;
}
@keyframes flup{from{transform:translateY(100%)}to{transform:none}}
.fl-sheet-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.fl-sheet-h b{font-size:16px}
.fl-sheet-x{border:0;background:transparent;font-size:22px;line-height:1;color:var(--fl-ink-3);cursor:pointer;padding:0 4px}
.fl-sheet-sum{font-size:13px;color:var(--fl-ink-3);margin:0 0 16px}
.fl-sheet-sum b{color:var(--fl-danger);font-size:17px;font-variant-numeric:tabular-nums}
.fl-pays{display:grid;gap:9px}
.fl-payopt{
  display:flex;align-items:center;gap:11px;padding:13px 14px;
  border:1.5px solid var(--fl-line);border-radius:var(--fl-r-sm);
  cursor:pointer;background:var(--fl-surface-2);
  transition:border-color .16s,background .16s,transform .12s;
}
.fl-payopt:hover{border-color:var(--fl-primary);background:#fff}
.fl-payopt:active{transform:scale(.99)}
.fl-payopt img{width:26px;height:26px;object-fit:contain;border-radius:6px}
.fl-payopt span{font-size:14.5px;font-weight:600}
.fl-payopt .arr{margin-left:auto;color:var(--fl-ink-3);font-size:16px}

/* ---------- 结果层 ---------- */
.fl-result{padding:4px 0 0}
.fl-result-ok{
  display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;
  color:var(--fl-ok);margin-bottom:14px;
}
.fl-kv{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:7px 0;border-bottom:1px dashed var(--fl-line)}
.fl-kv span{color:var(--fl-ink-3)}
.fl-kv b{font-weight:600;word-break:break-all;text-align:right}
.fl-secret{
  margin-top:14px;background:var(--fl-surface-2);border:1px solid var(--fl-line);
  border-radius:var(--fl-r-sm);padding:13px;font-family:ui-monospace,"SFMono-Regular",Menlo,monospace;
  font-size:13px;line-height:1.8;white-space:pre-wrap;word-break:break-all;
  max-height:220px;overflow-y:auto;color:var(--fl-ink);
}
.fl-copy{
  margin-top:12px;width:100%;height:42px;border:0;border-radius:var(--fl-r-sm);
  background:var(--fl-primary);color:#fff;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:background .16s;
}
.fl-copy:hover{background:var(--fl-primary-dark)}

/* ---------- 提示条 ---------- */
.fl-toast{
  position:fixed;left:50%;top:22px;transform:translate(-50%,-24px);
  z-index:1100;padding:11px 20px;border-radius:11px;font-size:14px;font-weight:500;
  background:var(--fl-ink);color:#fff;box-shadow:0 8px 28px rgba(17,24,38,.28);
  transition:transform .3s cubic-bezier(.22,1,.36,1),opacity .22s ease,visibility .22s;
  max-width:88vw;text-align:center;
  opacity:0;visibility:hidden;pointer-events:none;
}
.fl-toast.show{transform:translate(-50%,0);opacity:1;visibility:visible}
.fl-toast.err{background:var(--fl-danger)}
.fl-toast.ok{background:var(--fl-ok)}

.fl-empty{text-align:center;padding:36px 12px;color:var(--fl-ink-3);font-size:14px}
.fl-foot{
  max-width:1180px;margin:0 auto;padding:20px;text-align:center;
  color:var(--fl-ink-3);font-size:12.5px;
}

/* ---------- 移动端 ---------- */
@media (max-width:640px){
  html{font-size:14px}
  .fl-wrap{padding:14px 12px 0}
  .fl-sec{padding:15px 14px;border-radius:12px}
  .fl-goods{grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:10px}
  .fl-thumb{height:88px}
  .fl-nav-in{padding:0 12px;height:54px;gap:10px}
  .fl-brand{font-size:15px}
  .fl-nav-link{padding:6px 8px;font-size:13px}
  .fl-bar-in{padding:10px 12px;gap:10px}
  .fl-bar-name{flex:1 1 100%;order:1}
  .fl-qty{order:2}
  .fl-total{order:3;flex:1}
  .fl-pay{order:4;height:40px;padding:0 18px}
  .fl-cat{min-width:0;flex:1 1 calc(50% - 5px)}
  .fl-form{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ---------- 禁用态 / 占位（v2 常驻结构） ---------- */
.fl-fld input:disabled{
  background:#f0f3f8;color:var(--fl-ink-3);cursor:not-allowed;
  border-color:var(--fl-line-soft);
}
.fl-fld input:disabled::placeholder{color:#a8b2c2}
.fl-ph{color:var(--fl-ink-3);font-size:13.5px;margin:0;font-style:normal}
.fl-cap-ph{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;min-width:96px;padding:0 12px;border-radius:var(--fl-r-sm);
  border:1px dashed var(--fl-line);background:#f0f3f8;
  color:var(--fl-ink-3);font-size:12px;white-space:nowrap;
}
.fl-cap-ph:empty{display:none}
.fl-qty button:disabled,.fl-qty input:disabled{
  color:var(--fl-ink-3);cursor:not-allowed;background:transparent;
}
.fl-qty:has(input:disabled){background:#f0f3f8;border-color:var(--fl-line-soft)}
.fl-bar-name b:only-child{color:var(--fl-ink-3);font-weight:500}

/* [hidden] 必须压过组件自身的 display，否则隐藏失效 */
[hidden]{display:none!important}

/* ---------- v3：商品卡去图，紧凑文字布局（对齐站1移动端） ---------- */
.fl-goods{grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.fl-item-b{padding:14px 15px;gap:10px;min-height:0}
.fl-item-n{
  font-size:14.5px;font-weight:600;line-height:1.45;
  -webkit-line-clamp:2;line-clamp:2;min-height:2.9em;
}
.fl-item-f{align-items:center}
.fl-price{font-size:18px}
.fl-sk{padding:14px 15px 4px}
.fl-sk-l{margin:0 0 11px}
@media (max-width:640px){
  .fl-goods{grid-template-columns:1fr 1fr;gap:10px}
  .fl-item-b{padding:12px 13px;gap:8px}
  .fl-item-n{font-size:13.5px;min-height:2.9em}
  .fl-price{font-size:16.5px}
  .fl-stock{font-size:11px}
}

/* ---------- v4：移动端布局修复 ---------- */

/* 顶栏：品牌与按钮一律不换行，导航可横向滚动 */
.fl-nav-in{flex-wrap:nowrap;overflow:hidden}
.fl-brand{flex:0 1 auto;min-width:0;white-space:nowrap}
.fl-brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fl-nav-link,.fl-nav-cta{white-space:nowrap;flex:none}

@media (max-width:760px){
  .fl-nav-in{gap:8px;padding:0 12px}
  .fl-brand{font-size:15px;max-width:38vw}
  .fl-brand img{width:22px;height:22px}
  .fl-nav-link{padding:6px 7px;font-size:13px}
  .fl-nav-cta{padding:6px 11px;font-size:13px}
  /* 客服入口在公告里已有，窄屏隐藏以腾出空间 */
  .fl-nav-link[target="_blank"]{display:none}
}
@media (max-width:430px){
  .fl-brand{max-width:32vw;font-size:14px}
  .fl-nav-link{padding:5px 5px;font-size:12.5px}
  .fl-nav-cta{padding:6px 9px;font-size:12.5px}
}

/* 底栏：紧凑化，避免过高遮挡内容 */
@media (max-width:640px){
  .fl-bar-in{padding:9px 12px;gap:8px;min-height:0}
  .fl-bar-name{flex:1 1 100%;order:1;gap:8px}
  .fl-bar-name img{width:28px;height:28px}
  .fl-bar-name b{font-size:13px}
  .fl-qty{order:2}
  .fl-qty button{width:30px;height:32px;font-size:16px}
  .fl-qty input{width:44px;height:32px;font-size:13px}
  .fl-total{order:3;flex:1;gap:4px}
  .fl-total span{font-size:11.5px}
  .fl-total b{font-size:19px}
  .fl-pay{order:4;height:38px;padding:0 16px;font-size:14px}
}
/* ============================================================
   v5 覆盖层：对齐站1的交互形态
   1 数量移入表单  2 底栏整条大按钮  3 表单横向布局
   5 库存药丸标签  6 分类2列渐变     4 商品图保留（恢复）
   ============================================================ */

/* ---------- 6. 分类：2 列网格，选中渐变 ---------- */
.fl-cats{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(210px,1fr));
  gap:12px;
}
.fl-cat{
  min-width:0;padding:14px 16px;border-radius:12px;
  display:flex;flex-direction:column;gap:4px;
}
.fl-cat.on{
  background:linear-gradient(135deg,var(--fl-primary),var(--fl-accent));
  border-color:transparent;
}
.fl-cat.on::after{
  right:12px;bottom:10px;font-size:16px;
  color:rgba(255,255,255,.85);
}
.fl-cat-n{font-size:15px}
.fl-cat-c{font-size:12.5px}

/* ---------- 4. 商品卡：恢复图片 ---------- */
.fl-goods{grid-template-columns:repeat(auto-fill,minmax(196px,1fr))}
.fl-thumb{
  display:block;height:104px;background:var(--fl-surface-2);
  position:relative;overflow:hidden;border-bottom:1px solid var(--fl-line-soft);
}
.fl-item-b{padding:11px 12px;gap:8px}
.fl-item-n{font-size:13.5px;min-height:2.8em}
.fl-price{font-size:19px}

/* ---------- 5. 库存：药丸标签 ---------- */
.fl-stock{
  display:inline-block;padding:3px 9px;border-radius:999px;
  font-size:11.5px;font-weight:600;line-height:1.4;white-space:nowrap;
  border:1px solid transparent;
}
.fl-stock.s-hi  {background:rgba(18,156,110,.12); color:#0f8a61; border-color:rgba(18,156,110,.22)}
.fl-stock.s-mid {background:rgba(199,119,0,.12);  color:#a86400; border-color:rgba(199,119,0,.22)}
.fl-stock.s-low {background:rgba(229,72,77,.12);  color:#cf3338; border-color:rgba(229,72,77,.22)}
.fl-stock.s-out {background:rgba(131,144,165,.14);color:#6c7789; border-color:rgba(131,144,165,.24)}

/* ---------- 3. 表单：左标签 + 右控件 ---------- */
.fl-form{display:flex;flex-direction:column;gap:0}
.fl-fld{
  display:flex;flex-direction:row;align-items:center;gap:16px;
  padding:14px 2px;border-bottom:1px solid var(--fl-line-soft);
}
.fl-fld:last-child{border-bottom:0;padding-bottom:4px}
.fl-fld > label{
  flex:0 0 auto;min-width:88px;
  font-size:14.5px;font-weight:600;color:var(--fl-ink);
  display:flex;align-items:center;gap:3px;
}
.fl-req{color:var(--fl-danger);font-style:normal;font-weight:700}
.fl-ctl{flex:1 1 auto;min-width:0;display:flex;align-items:center;justify-content:flex-end;gap:9px}
.fl-ctl > input{
  flex:1 1 auto;min-width:0;height:38px;padding:0 13px;text-align:right;
  font-size:14px;border:1px solid var(--fl-line);border-radius:var(--fl-r-sm);
  background:var(--fl-surface-2);color:var(--fl-ink);outline:none;
  transition:border-color .16s,box-shadow .16s,background .16s;
}
.fl-ctl > input:focus{border-color:var(--fl-primary);background:#fff;box-shadow:0 0 0 3px rgba(51,105,255,.12)}
.fl-ctl > input:disabled{background:#f0f3f8;color:var(--fl-ink-3);cursor:not-allowed;border-color:var(--fl-line-soft)}
.fl-cap img{height:38px;flex:none}
.fl-cap-ph{height:38px;min-width:88px}
.fl-hint{margin-top:12px;font-size:12.5px;color:var(--fl-ink-3)}

/* 数量控件在表单里 */
.fl-fld .fl-qty{flex:none}
.fl-fld .fl-qty button{width:36px;height:38px}
.fl-fld .fl-qty input{width:54px;height:38px;text-align:center}

/* ---------- 2. 底栏：整条大按钮 ---------- */
.fl-bar{
  padding:10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
  background:rgba(255,255,255,.94);
}
.fl-bar .fl-pay{
  display:block;width:100%;max-width:1148px;margin:0 auto;
  height:50px;padding:0 20px;border:0;border-radius:12px;
  background:var(--fl-primary);color:#fff;
  font-size:16.5px;font-weight:700;letter-spacing:.02em;
  cursor:pointer;transition:background .16s,transform .12s,opacity .16s;
}
.fl-bar .fl-pay:hover{background:var(--fl-primary-dark)}
.fl-bar .fl-pay:active{transform:scale(.995)}
.fl-bar .fl-pay:disabled{background:#c3cddf;color:#fff;cursor:not-allowed;transform:none}
.fl-bar .fl-pay .amt{font-weight:800;margin-left:6px}

/* ---------- 移动端 ---------- */
@media (max-width:640px){
  .fl-cats{grid-template-columns:1fr 1fr;gap:10px}
  .fl-cat{padding:12px 13px}
  .fl-cat-n{font-size:14px}
  .fl-cat-c{font-size:12px}

  .fl-goods{grid-template-columns:1fr 1fr;gap:10px}
  .fl-thumb{height:88px}

  .fl-fld{padding:13px 0;gap:10px}
  .fl-fld > label{min-width:74px;font-size:13.5px}
  .fl-ctl > input{height:36px;font-size:13.5px;padding:0 11px}
  .fl-cap img,.fl-cap-ph{height:36px;min-width:78px}
  .fl-fld .fl-qty button{width:32px;height:36px}
  .fl-fld .fl-qty input{width:46px;height:36px}

  .fl-bar{padding:9px 12px calc(9px + env(safe-area-inset-bottom, 0px))}
  .fl-bar .fl-pay{height:46px;font-size:15.5px}
}

/* ============================================================
   v6：付款方式内联到表单，取消弹层选择
   ============================================================ */
.fl-fld-stack{
  display:block;padding:14px 2px;
  border-bottom:1px solid var(--fl-line-soft);
}
.fl-fld-stack:last-child{border-bottom:0;padding-bottom:4px}
.fl-fld-stack > label{
  display:flex;align-items:center;gap:3px;margin-bottom:10px;
  font-size:14.5px;font-weight:600;color:var(--fl-ink);
}
.fl-paychips{display:flex;flex-wrap:wrap;gap:10px}
.fl-paychips-ph{font-size:13px;color:var(--fl-ink-3)}
.fl-paychip{
  display:inline-flex;align-items:center;gap:7px;
  min-height:42px;padding:0 15px;
  border:1.5px solid var(--fl-line);border-radius:var(--fl-r-sm);
  background:var(--fl-surface);color:var(--fl-ink);
  font-size:13.5px;font-weight:600;line-height:1;cursor:pointer;
  transition:border-color .16s,background .16s,box-shadow .16s;
}
.fl-paychip img{width:19px;height:19px;flex:none;border-radius:50%}
.fl-paychip:hover{border-color:#c4d3ee;background:var(--fl-surface-2)}
.fl-paychip.on{
  border-color:var(--fl-primary);
  background:rgba(51,105,255,.06);
  color:var(--fl-primary-dark);
  box-shadow:0 0 0 3px rgba(51,105,255,.1);
}
.fl-paychip.on::after{
  content:"✓";margin-left:2px;font-size:12px;font-weight:800;color:var(--fl-primary);
}

@media (max-width:640px){
  .fl-fld-stack{padding:13px 0}
  .fl-fld-stack > label{font-size:13.5px;margin-bottom:9px}
  .fl-paychips{gap:8px}
  .fl-paychip{min-height:40px;padding:0 13px;font-size:13px}
  .fl-paychip img{width:18px;height:18px}
}