:root{
  --grad:linear-gradient(135deg,#667eea 0%,#764ba2 100%);
  --brand:#667eea; --brand2:#764ba2; --bg:#f4f6f9; --card:#fff; --text:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --ok:#16a34a; --warn:#d97706; --bad:#dc2626; --ai:#7c3aed; --mine:#0ea5e9; --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--brand);text-decoration:none} a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
.hidden{display:none!important}

/* header */
header{background:var(--grad);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 10px rgba(80,60,160,.25)}
.hbar{max-width:1320px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:0 16px;height:56px}
.logo{font-weight:700;font-size:17px;white-space:nowrap}
.logo small{font-weight:400;opacity:.8;margin-left:6px;font-size:12px}
nav{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
nav::-webkit-scrollbar{display:none}
nav button{background:transparent;border:0;color:#fff;opacity:.82;padding:8px 14px;border-radius:999px;white-space:nowrap}
nav button.on{background:rgba(255,255,255,.22);opacity:1;font-weight:600}
nav button .badge{background:#fff;color:var(--brand2);border-radius:999px;padding:0 7px;margin-left:5px;font-size:12px;font-weight:700}
.who{font-size:13px;opacity:.9;white-space:nowrap}
.demo-flag{background:#fde68a;color:#92400e;border-radius:6px;padding:1px 8px;font-size:12px;margin-left:8px}

main{max-width:1320px;margin:0 auto;padding:16px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:0 1px 3px rgba(0,0,0,.06);padding:16px;margin-bottom:14px}
.card h3{margin:0 0 10px;font-size:15px}
.muted{color:var(--muted)} .small{font-size:12px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.grow{flex:1;min-width:180px}

/* inputs */
.seg{display:inline-flex;background:#eef0f6;border-radius:999px;padding:3px}
.seg button{border:0;background:transparent;padding:6px 14px;border-radius:999px;color:var(--muted)}
.seg button.on{background:#fff;color:var(--brand2);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.inp{border:1px solid var(--line);border-radius:10px;padding:9px 12px;background:#fff;outline:none;min-width:0}
.inp:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(102,126,234,.15)}
.btn{border:0;border-radius:10px;padding:9px 16px;background:#eef0f6;color:var(--text);white-space:nowrap}
.btn:hover{filter:brightness(.97)}
.btn.primary{background:var(--grad);color:#fff;font-weight:600}
.btn.danger{background:#fee2e2;color:var(--bad)}
.btn.ghost{background:transparent;color:var(--brand)}
.btn.sm{padding:5px 10px;font-size:12px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.drop{border:2px dashed #c7cbe0;border-radius:12px;padding:16px;text-align:center;color:var(--muted);background:#fafbff;cursor:pointer}
.drop.over{border-color:var(--brand);background:#f0f2ff}
.drop img{max-height:120px;border-radius:8px;display:block;margin:6px auto 0}

/* status / ai summary */
.status{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:6px 2px 10px;color:var(--muted);font-size:13px}
.spin{display:inline-block;width:14px;height:14px;border:2px solid #c7cbe0;border-top-color:var(--brand);border-radius:50%;animation:sp .8s linear infinite;vertical-align:-2px}
@keyframes sp{to{transform:rotate(360deg)}}
.aibox{background:linear-gradient(135deg,#f5f3ff,#eef2ff);border:1px solid #e0e7ff;border-radius:var(--radius);padding:12px 14px;margin-bottom:12px}
.aibox b{color:var(--ai)}
.err{background:#fef2f2;border:1px solid #fecaca;color:var(--bad);border-radius:10px;padding:10px 12px;margin:8px 0}
.warnbox{background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:10px;padding:10px 12px;margin:8px 0}

/* picks two columns */
.picks{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.pcol{background:#fff;border-radius:var(--radius);padding:12px;box-shadow:0 1px 3px rgba(0,0,0,.06);min-height:80px}
.pcol h4{margin:0 0 8px;font-size:14px;display:flex;justify-content:space-between;align-items:center}
.pcol.ai h4{color:var(--ai)} .pcol.mine h4{color:var(--mine)}
.pitem{display:flex;gap:10px;padding:8px 0;border-top:1px solid #f1f2f6}
.pitem:first-of-type{border-top:0}
.pitem img{width:56px;height:56px;border-radius:8px;object-fit:cover;background:#f3f4f6;flex:none}
.pitem .t{font-size:13px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pitem .r{font-size:12px;color:#4c1d95;margin-top:2px}
.flags{display:flex;gap:4px;flex-wrap:wrap;margin-top:3px}
.flag{background:#fff7ed;color:#c2410c;border-radius:6px;padding:0 6px;font-size:11px}
.rank{background:var(--ai);color:#fff;border-radius:6px;padding:0 6px;font-size:11px;margin-right:4px}

/* toolbar */
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:4px 0 10px}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 12px;font-size:12px;color:var(--muted)}
.chip.on{background:var(--grad);border-color:transparent;color:#fff}

/* grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.pc{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.06);display:flex;flex-direction:column;position:relative;transition:box-shadow .15s,transform .15s}
.pc:hover{box-shadow:0 6px 18px rgba(80,60,160,.15);transform:translateY(-1px)}
.pc.ai{outline:2px solid #c4b5fd} .pc.mine{outline:2px solid #7dd3fc}
.pc.ai.mine{outline:2px solid var(--ai)}
.pc .img{aspect-ratio:1/1;background:#f3f4f6;overflow:hidden}
.pc .img img{width:100%;height:100%;object-fit:cover;display:block}
.pc .ribbon{position:absolute;top:8px;left:8px;background:var(--ai);color:#fff;font-size:12px;border-radius:6px;padding:1px 8px;box-shadow:0 1px 4px rgba(0,0,0,.2)}
.pc .body{padding:10px 10px 6px;display:flex;flex-direction:column;gap:4px;flex:1}
.price{color:#e11d48;font-weight:700;font-size:17px}
.price small{font-size:12px;font-weight:400;color:var(--muted)}
.pc .t{font-size:13px;line-height:1.35;height:35px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.badges{display:flex;gap:4px;flex-wrap:wrap}
.b{font-size:11px;border-radius:5px;padding:0 5px;background:#f3f4f6;color:#4b5563}
.b.g{background:#dcfce7;color:#166534} .b.p{background:#ede9fe;color:#5b21b6} .b.o{background:#ffedd5;color:#9a3412} .b.bl{background:#e0f2fe;color:#075985}
.metrics{font-size:12px;color:var(--muted)}
.metrics b{color:var(--text);font-weight:600}
.pc .foot{display:flex;gap:6px;padding:8px 10px 10px;border-top:1px solid #f3f4f6}
.pc .foot .btn{flex:1;padding:6px 8px;font-size:12px}
.pc .foot .btn.on{background:#e0f2fe;color:#0369a1;font-weight:600}

/* modal */
.mask{position:fixed;inset:0;background:rgba(17,24,39,.45);z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:4vh 12px;overflow:auto}
.modal{background:#fff;border-radius:14px;width:min(980px,100%);box-shadow:0 20px 60px rgba(0,0,0,.25);overflow:hidden}
.modal.narrow{width:min(620px,100%)}
.mh{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.mh h3{margin:0;font-size:16px}
.mb{padding:16px;max-height:76vh;overflow:auto}
.mf{display:flex;justify-content:flex-end;gap:8px;padding:12px 16px;border-top:1px solid var(--line);flex-wrap:wrap;align-items:center}
.x{border:0;background:#f3f4f6;border-radius:8px;width:32px;height:32px;font-size:18px;line-height:1}

/* product detail */
.pd{display:grid;grid-template-columns:280px 1fr;gap:16px}
.pd .main{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:10px;background:#f3f4f6}
.thumbs{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.thumbs img{width:44px;height:44px;border-radius:6px;object-fit:cover;cursor:pointer;border:2px solid transparent}
.thumbs img.on{border-color:var(--brand)}
.tiers{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0}
.tier{background:#fff1f2;border-radius:8px;padding:4px 10px;font-size:12px;color:#9f1239}
.vlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;margin:8px 0;max-height:330px;overflow:auto;padding:2px}
.v{border:1px solid var(--line);border-radius:10px;padding:8px;display:flex;gap:8px;cursor:pointer;background:#fff;text-align:left}
.v img{width:40px;height:40px;border-radius:6px;object-fit:cover;flex:none;background:#f3f4f6}
.v.on{border-color:var(--brand);box-shadow:0 0 0 3px rgba(102,126,234,.18);background:#f8f9ff}
.v.ai{border-color:#c4b5fd}
.v .vl{font-size:13px;line-height:1.3}
.v .vp{font-size:12px;color:var(--muted)}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.qty button{border:0;background:#f3f4f6;width:32px;height:34px}
.qty input{width:84px;border:0;text-align:center;height:34px;outline:none}

/* compare table */
table.cmp{border-collapse:collapse;width:100%;font-size:13px}
table.cmp th,table.cmp td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
table.cmp th{background:#f8f9fc;font-weight:600;white-space:nowrap}
table.cmp td img{width:72px;height:72px;object-fit:cover;border-radius:6px}
.best{background:#f0fdf4;font-weight:600}

/* cart */
.citem{display:grid;grid-template-columns:28px 64px 1fr auto;gap:10px;align-items:center;padding:10px 0;border-top:1px solid #f1f2f6}
.cact{display:flex;gap:14px;align-items:center}
.cact>span.small{min-width:96px;text-align:right}
.citem:first-child{border-top:0}
.citem img{width:64px;height:64px;border-radius:8px;object-fit:cover;background:#f3f4f6}
.citem .t{font-size:13px;line-height:1.35}
.sum{font-size:15px} .sum b{color:#e11d48;font-size:20px}
.order{border:1px solid var(--line);border-radius:10px;padding:10px;margin:8px 0}
.order .ol{display:flex;gap:8px;align-items:center;font-size:13px;padding:4px 0}
.order .ol img{width:40px;height:40px;border-radius:6px;object-fit:cover}
.receipt{max-width:100%;border:1px solid var(--line);border-radius:10px;display:block;margin:0 auto 10px}

/* batch */
.prog{height:10px;background:#eef0f6;border-radius:999px;overflow:hidden;margin:8px 0}
.prog>div{height:100%;background:var(--grad);transition:width .4s}
.brow{border:1px solid var(--line);border-radius:12px;padding:12px;margin:10px 0;background:#fff}
.brow.sel{border-color:#c4b5fd}
.brow .need{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.brow .need .no{background:#eef0f6;border-radius:6px;padding:0 8px;font-size:12px}
.bpicks{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:8px}
.bp{border:1px solid var(--line);border-radius:10px;padding:8px;display:flex;flex-direction:column;gap:4px;position:relative;background:#fff}
.bp.on{border-color:var(--ai);box-shadow:0 0 0 3px rgba(124,58,237,.12);background:#faf8ff}
.bp .top{display:flex;gap:8px}
.bp .top img{width:64px;height:64px;border-radius:8px;object-fit:cover;flex:none;background:#f3f4f6}
.bp .t{font-size:12.5px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.bp .spec{font-size:12px;background:#f8f9fc;border-radius:6px;padding:3px 6px}
.bp .spec.low{background:#fffbeb;color:#92400e}
.bp label{display:flex;gap:6px;align-items:center;font-size:12px;cursor:pointer}
.stick{position:sticky;bottom:0;background:rgba(244,246,249,.96);backdrop-filter:blur(4px);padding:10px 0;border-top:1px solid var(--line);margin-top:10px;z-index:5}
.jobs{display:flex;gap:8px;flex-wrap:wrap}
.job{border:1px solid var(--line);border-radius:10px;padding:6px 10px;background:#fff;font-size:12px;cursor:pointer}
.job.on{border-color:var(--brand);background:#f5f6ff}

/* settings */
table.addr{width:100%;border-collapse:collapse;font-size:13px}
table.addr td,table.addr th{border-bottom:1px solid #f1f2f6;padding:6px 6px;text-align:left}
table.addr input{width:140px}
.qrbox{text-align:center} .qrbox img{width:220px;height:220px;border:1px solid var(--line);border-radius:10px}

.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#111827;color:#fff;padding:9px 18px;border-radius:999px;z-index:99;font-size:13px;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.empty{text-align:center;color:var(--muted);padding:40px 10px}

@media (max-width:860px){
  .picks{grid-template-columns:1fr}
  .pd{grid-template-columns:1fr}
  .pd .main{max-width:220px;margin:0 auto;display:block}
  .thumbs{justify-content:center}
  .bpicks{grid-template-columns:1fr}
  .citem{grid-template-columns:24px 56px 1fr}
  .cact{grid-column:2 / 4;justify-content:space-between}
  .cact>span.small{text-align:left;min-width:0}
  .hbar{gap:8px} .logo small,.who{display:none}
  nav button{padding:7px 10px}
  #req{flex-basis:100%}
  .logo{font-size:15px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
}

/* 10-04: listings added by the image search during AI picking */
.b.exp{background:#ecfeff;color:#0e7490;border-radius:6px;padding:0 6px;font-size:11px}

/* 10-04: live ranking while the AI is checking — rows slide to their new place, a new #1 flashes */
.live-head{margin-bottom:6px}
.live{position:relative}
.lrow{position:relative;display:flex;gap:4px;align-items:flex-start;border-radius:10px;background:#fff;will-change:transform}
.lrow .pitem{flex:1;min-width:0}
.lrank{flex:none;width:30px;text-align:center;font-weight:800;font-size:15px;color:var(--ai);padding-top:24px}
.lrank.wait{color:#c4c9d4;font-weight:400}
.lrow.enter{animation:lrowIn .45s ease-out}
@keyframes lrowIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.lrow.newtop{animation:newTop 2.2s ease-out}
.lrow.newtop .lrank::after{content:"新第一";display:block;font-size:10px;font-weight:700;color:#fff;background:#f59e0b;border-radius:6px;margin-top:4px;padding:1px 0}
@keyframes newTop{0%{background:#fffbeb;box-shadow:0 0 0 2px #f59e0b,0 8px 22px rgba(245,158,11,.35)}70%{background:#fffbeb;box-shadow:0 0 0 2px #fcd34d}100%{background:#fff;box-shadow:none}}
.b.ref{background:#fef3c7;color:#92400e;border-radius:6px;padding:0 6px;font-size:11px}

/* 10-05: pick one SKU photo of the pasted link */
.spec-row{margin-top:10px}
.spec-opts{display:flex;gap:8px;flex-wrap:wrap;max-height:220px;overflow:auto}
.spec-opt{display:flex;flex-direction:column;align-items:center;gap:3px;width:84px;padding:4px;border:2px solid transparent;border-radius:10px;background:#f6f7fb;cursor:pointer}
.spec-opt img{width:72px;height:72px;border-radius:8px;object-fit:cover}
.spec-opt span{font-size:11px;color:var(--muted);line-height:1.2;text-align:center;word-break:break-all}
.spec-opt.on{border-color:var(--brand);background:#eef0ff}
.spec-opt.on span{color:var(--brand2);font-weight:600}

/* today's 1688 request count in the header (10-05) */
.who .quota{margin-left:8px;padding:2px 8px;border-radius:999px;background:rgba(255,255,255,.18);color:rgba(255,255,255,.92);white-space:nowrap}
.who .quota.warn{background:#dc2626;color:#fff;font-weight:600}