:root{
  --bg:#f4f5f9; --card:#fff; --ink:#171528; --ink2:#565073; --ink3:#8a85a3;
  --line:#e6e4f0; --line2:#d5d2e6;
  --pur:#6d3bf5; --pur2:#8b5cf6; --purd:#4720b0; --purl:#f2eeff;
  --ok:#0f8a5f; --okbg:#e8f7f0; --warn:#b57b0a; --warnbg:#fdf3e2; --red:#b4231b; --redbg:#fdecea;
  --dark:#141033; --dark2:#1e1846;
  --shadow:0 1px 2px rgba(23,21,40,.05),0 6px 20px rgba(80,60,180,.07);
  --r:12px; --r2:10px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14.5px;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 18px}
.hide{display:none!important}
h1,h2,h3,h4{margin:0;line-height:1.3}
h1{font-size:clamp(22px,3vw,30px);font-weight:800}
h2{font-size:20px;font-weight:800}
h3{font-size:16px;font-weight:800}
p{margin:0}
.sub{color:var(--ink2);font-size:14px}
.small{font-size:12.5px;color:var(--ink3)}
.mono{font-family:ui-monospace,Menlo,monospace;font-size:12.5px}

/* 顶栏 */
.topbar{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.tb1{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:flex;align-items:center;gap:9px;font-weight:850;font-size:17px;flex:none}
.brand svg{flex:none}
.brand .dot{color:var(--pur)}
.search{display:flex;flex:1;min-width:0;border:2px solid var(--pur);border-radius:999px;overflow:hidden;background:#fff}
.search select{border:0;background:#f7f6fc;font:inherit;font-size:13.5px;color:var(--ink2);padding:0 10px;border-right:1px solid var(--line);max-width:150px}
.search input{flex:1;min-width:0;border:0;padding:11px 14px;font:inherit;font-size:14.5px}
.search input:focus{outline:none}
.search button{border:0;background:linear-gradient(135deg,var(--pur),var(--pur2));color:#fff;font:inherit;font-weight:700;padding:0 26px;cursor:pointer}
.tbact{display:flex;gap:10px;flex:none;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:700;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:.12s}
.btn:hover{transform:translateY(-1px)}
.btn-p{background:linear-gradient(135deg,var(--pur),var(--pur2));color:#fff;box-shadow:0 4px 14px rgba(109,59,245,.25)}
.btn-s{background:#fff;color:var(--purd);border-color:var(--line2)}
.btn-s:hover{background:var(--purl)}
.btn-g{background:var(--purl);color:var(--purd);border-color:var(--line2)}
.btn-sm{padding:6px 13px;font-size:12.5px}
.catnav{display:flex;gap:6px;align-items:center;overflow-x:auto;padding:0 0 10px;scrollbar-width:none}
.catnav::-webkit-scrollbar{display:none}
.catnav a{padding:6px 12px;border-radius:999px;font-size:13.5px;font-weight:600;color:var(--ink2);white-space:nowrap}
.catnav a:hover{background:var(--purl);color:var(--purd)}
.catnav a.hot{color:var(--purd);background:var(--purl);border:1px solid var(--line2)}
.catnav .navsep{margin-left:auto;border-left:1px solid var(--line);padding-left:14px;color:var(--purd);font-weight:700}

/* 通用块 */
section{padding:26px 0}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.panel-h{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
.panel-h h2,.panel-h h3{font-size:16px}
.panel-h .more{margin-left:auto;font-size:12.5px;color:var(--purd);font-weight:700}
.panel-b{padding:14px 16px}
.cols{display:grid;grid-template-columns:1.15fr .85fr;gap:16px;align-items:start}
.badge{display:inline-block;font-size:11.5px;font-weight:700;border-radius:999px;padding:2.5px 9px;border:1px solid var(--line2);background:var(--purl);color:var(--purd)}
.badge.ok{background:var(--okbg);color:var(--ok);border-color:#bfe6d5}
.badge.warn{background:var(--warnbg);color:var(--warn);border-color:#f0dcb6}
.badge.red{background:var(--redbg);color:var(--red);border-color:#f6c9c4}
.badge.sim{background:#f4f5f9;color:var(--ink2);border-color:var(--line2)}
.tagline{font-size:12.5px;color:var(--ink3)}

/* 供应商卡 */
.sgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.14s}
.scard:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(80,60,180,.14)}
.scard .cov{position:relative;aspect-ratio:16/9;background:#eceaf4;overflow:hidden}
.scard .cov img{width:100%;height:100%;object-fit:cover}
.scard .cov .flag{position:absolute;left:8px;top:8px;display:flex;gap:5px;flex-wrap:wrap}
.scard .bd{padding:11px 12px 12px;display:flex;flex-direction:column;gap:6px;flex:1}
.scard .nm{font-weight:800;font-size:14.5px}
.scard .row{display:flex;justify-content:space-between;gap:8px;font-size:12.5px;color:var(--ink2)}
.scard .row b{color:var(--purd);font-weight:800;font-size:14px}
.scard .acts{display:flex;gap:7px;margin-top:auto;padding-top:8px;border-top:1px dashed var(--line)}
.scard .acts .btn{flex:1}
.chk{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--ink2);cursor:pointer;user-select:none}
.chk input{accent-color:var(--pur)}

/* 可对接列表 */
.pairs{display:grid;gap:10px}
.pair{display:flex;gap:12px;align-items:center;padding:11px 12px;border:1px solid var(--line);border-radius:var(--r2);background:#fdfdff}
.pair .sc{flex:none;width:56px;height:56px;border-radius:10px;background:var(--purl);display:flex;flex-direction:column;align-items:center;justify-content:center}
.pair .sc b{font-size:17px;font-weight:850;color:var(--purd);line-height:1}
.pair .sc span{font-size:10.5px;color:var(--ink3)}
.pair .info{flex:1;min-width:0}
.pair .info b{font-size:14px}
.pair .info .m{font-size:12.5px;color:var(--ink2)}
.pair .r{flex:none;display:flex;flex-direction:column;gap:5px;align-items:flex-end}

/* 筛选栏 */
.layout{display:grid;grid-template-columns:220px 1fr;gap:16px;align-items:start}
.filter{position:sticky;top:104px}
.fgroup{padding:12px 14px;border-bottom:1px solid var(--line)}
.fgroup:last-child{border-bottom:0}
.fgroup h4{font-size:13px;margin-bottom:8px}
.fitem{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink2);padding:3px 0;cursor:pointer}
.fitem input{accent-color:var(--pur)}
.fitem span.n{margin-left:auto;color:var(--ink3);font-size:11.5px}

/* 表格 */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:#faf9ff;font-weight:700;white-space:nowrap}
td.diff{background:#fff8e8;font-weight:700}
.tbl-wrap{overflow-x:auto}

/* 步骤/闸门 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;box-shadow:var(--shadow)}
.numtag{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:999px;background:var(--purl);color:var(--purd);font-weight:850;font-size:13px;border:1px solid var(--line2);margin-bottom:9px}
.gate{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--pur);border-radius:var(--r2);padding:14px 16px}
.gate.b{border-left-color:var(--pur2)}
.gate.c{border-left-color:var(--warn)}
.gate h3{font-size:15px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:6px}

/* 深色简报 */
.brief{background:var(--dark);border-radius:var(--r);padding:20px;color:#e9e6ff}
.brief h3{color:#fff;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.brief .bt{font-family:ui-monospace,Menlo,monospace;font-size:12.5px;background:var(--dark2);border:1px solid #35296b;border-radius:10px;padding:12px 14px;margin-top:12px;overflow-x:auto;white-space:pre;line-height:1.9}
.brief .bt b{color:#c4b5fd}.brief .bt u{text-decoration:none;color:#7ee2b8}.brief .bt i{font-style:normal;color:#f5c26b}.brief .bt s{text-decoration:none;color:#ff9d9d}

/* 类目卡 */
.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.catcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.catcard img{aspect-ratio:16/9;object-fit:cover;width:100%}
.catcard .cb{padding:10px 12px 12px}
.catcard .cb b{font-size:14.5px}
.catcard .cb .tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:6px}

/* 弹层 */
.modal{position:fixed;inset:0;background:rgba(20,16,51,.55);display:none;align-items:center;justify-content:center;z-index:60;padding:18px}
.modal.on{display:flex}
.mbox{background:#fff;border-radius:16px;max-width:720px;width:100%;max-height:88vh;overflow:auto}
.mhead{display:flex;gap:14px;padding:16px;border-bottom:1px solid var(--line)}
.mhead img{width:220px;aspect-ratio:16/9;object-fit:cover;border-radius:12px;flex:none;background:#eceaf4}
.mbody{padding:16px}
.mclose{margin-left:auto;border:0;background:transparent;font-size:22px;cursor:pointer;color:var(--ink3)}
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 18px;margin-top:10px}
.kv div{display:flex;gap:10px;font-size:13.5px}
.kv i{font-style:normal;color:var(--ink);font-weight:700;flex:none;width:80px}
.kv span{color:var(--ink2)}

/* 页脚 */
footer{background:#fff;border-top:1px solid var(--line);margin-top:30px;padding:26px 0 22px}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:22px}
footer b.t{display:block;font-size:13px;margin-bottom:8px}
footer ul{margin:0;padding:0}
footer li{list-style:none;font-size:13px;color:var(--ink2);margin-bottom:5px}
.fine{font-size:12px;color:var(--ink3);border-top:1px dashed var(--line);margin-top:20px;padding-top:14px;line-height:1.9}


/* 紧凑首屏条（B2B 平台感：不放标语占满首屏） */
.herobar{display:flex;gap:18px;align-items:center;flex-wrap:wrap;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:14px 18px}
.hb-l{flex:1;min-width:260px}
.hstats{display:flex;gap:22px;flex:none}
.hstats div{text-align:right}
.hstats b{display:block;font-size:22px;font-weight:850;color:var(--purd);line-height:1.1}
.hstats span{font-size:12px;color:var(--ink3)}
.kwbox{width:100%;border:1px solid var(--line2);border-radius:8px;padding:7px 10px;font:inherit;font-size:13px}
.fbtn{width:100%;margin-top:8px}
.chips{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px}
#empty{margin-top:14px}
.chips .chip{display:inline-flex;gap:6px;align-items:center;background:var(--purl);color:var(--purd);border:1px solid var(--line2);border-radius:999px;padding:3px 10px;font-size:12.5px;font-weight:700}
.chips .chip button{border:0;background:transparent;color:var(--purd);cursor:pointer;font-size:13px;line-height:1}
.trust{font-size:12px;color:var(--ink3);line-height:1.5;border-top:1px dashed var(--line);padding-top:6px}
/* 底部对比栏（B2B 版购物车，勾选后浮出） */
body{padding-bottom:64px}
.hmini{display:flex;gap:8px;flex-wrap:wrap;min-width:0;max-width:100%}
.hmini .mcard{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 9px;box-shadow:var(--shadow)}
.hmini .mcard img{width:52px;height:32px;object-fit:cover;border-radius:7px}
.hmini .mcard span{font-size:11.5px;color:var(--ink3);line-height:1.35}
.hmini .mcard span b{display:block;color:var(--purd);font-size:12.5px}
.cmpbar{position:fixed;left:50%;transform:translateX(-50%) translateY(240%);opacity:0;visibility:hidden;bottom:18px;z-index:45;
  background:var(--dark);color:#fff;border-radius:999px;padding:9px 10px 9px 18px;display:flex;gap:12px;align-items:center;
  box-shadow:0 12px 30px rgba(20,16,51,.35);transition:transform .18s ease}
.cmpbar.on{transform:translateX(-50%) translateY(0);opacity:1;visibility:visible}
.cmpbar .cbt{font-size:13.5px}
.cmpbar b{color:#c4b5fd}
.cmpbar .btn{padding:6px 14px;font-size:13px}

/* ── 商品卡（1688 口径：主图 + 品名 + 阶梯价 + 起订量 + 发货地）── */
.crumb{font-size:12.5px;color:var(--ink3);margin:4px 0 12px}
.crumb a{color:var(--purd);font-weight:700}
.ggrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gcard{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.18s}
.gcard:hover{transform:translateY(-2px);border-color:var(--line2);box-shadow:0 10px 26px rgba(74,44,150,.13)}
.gcov{position:relative;aspect-ratio:16/10;background:#f4f4f8;overflow:hidden}
.gcov img{width:100%;height:100%;object-fit:cover;display:block}
.gcat{position:absolute;left:8px;bottom:8px;background:rgba(255,255,255,.92);color:var(--ink2);font-size:11.5px;font-weight:700;border-radius:999px;padding:3px 10px}
.tierbadge{position:absolute;left:8px;top:8px;font-size:11.5px;font-weight:800;border-radius:999px;padding:3px 10px;color:#fff}
.tierbadge.gj{background:linear-gradient(135deg,#8B5CF6,#5B21B6)}
.tierbadge.gy{background:linear-gradient(135deg,#9AA4B2,#5B6472)}
.tierbadge.gx{background:linear-gradient(135deg,#22B07D,#128A60)}
.gbody{padding:11px 12px 12px;display:flex;flex-direction:column;gap:8px;flex:1}
.gname{font-size:14px;line-height:1.45;margin:0;font-weight:800}
.gname a{color:var(--ink);text-decoration:none}
.gname a:hover{color:var(--purd)}
.gtiers{list-style:none;margin:0;display:flex;flex-direction:column;gap:3px;background:var(--purl);border:1px dashed var(--line2);border-radius:10px;padding:7px 9px}
.gtiers li{font-size:12.5px;color:var(--ink2)}
.gtiers b{color:var(--purd);font-weight:800}
.gmeta{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px;font-size:11.5px;color:var(--ink3)}
.gmeta span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gmeta b{color:var(--ink2);font-weight:700}
.gcerts{display:flex;gap:6px;flex-wrap:wrap;min-height:42px;align-content:flex-start;align-items:flex-start}
.gbadge{font-size:11px;font-weight:700;color:var(--purd);background:var(--purl);border:1px solid var(--line2);border-radius:999px;padding:2px 8px}
.gfoot{display:flex;gap:8px;align-items:center;margin-top:auto;padding-top:2px}
.shopline{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--ink3);text-decoration:none;min-width:0;flex:1}
.shopline img{width:26px;height:26px;border-radius:8px;object-fit:cover;flex:none}
.gserv{display:flex;gap:6px;flex-wrap:wrap;min-height:22px}
.sbadge{font-size:11px;font-weight:700;color:#128A60;background:#E9F8F1;border:1px solid #BFE8D5;border-radius:999px;padding:2px 8px}
.sortbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:10px;font-size:12.5px;color:var(--ink2)}
.sortbar label{display:inline-flex;gap:5px;align-items:center;cursor:pointer}
.pager{display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:16px}
.dhead{display:flex;gap:18px;align-items:flex-start;flex-wrap:wrap}
.dgal{flex:0 0 46%;min-width:280px}
.dmain{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
.dthumb{display:flex;gap:8px;margin-top:8px}
.dthumb img{width:76px;height:48px;object-fit:cover;border-radius:9px;border:2px solid transparent;cursor:pointer;opacity:.75}
.dthumb img.on,.dthumb img:hover{border-color:var(--pur);opacity:1}
.dside{flex:1;min-width:280px}
.dtitle{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.dtitle h2{margin:0;font-size:19px;line-height:1.4}
.tierbadge2{font-size:11.5px;font-weight:800;border-radius:999px;padding:3px 10px;color:#fff}
.tierbadge2.gj{background:linear-gradient(135deg,#8B5CF6,#5B21B6)}
.tierbadge2.gy{background:linear-gradient(135deg,#9AA4B2,#5B6472)}
.tierbadge2.gx{background:linear-gradient(135deg,#22B07D,#128A60)}
.dtable{margin-top:12px}
.dtable b{display:block;font-size:12.5px;color:var(--ink2);margin-bottom:6px}
.dtable td.pr{color:var(--purd);font-weight:800}
.dactions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

.shopline:hover{color:var(--purd)}
.sl-t{display:flex;flex-direction:column;line-height:1.35;min-width:0;overflow:hidden;gap:2px}
.sl-t b{font-size:12px;color:var(--ink2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sl-t i{font-style:normal;color:var(--ink3);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gsel{position:absolute;right:8px;top:8px;background:rgba(255,255,255,.94);border:1px solid var(--line2);border-radius:999px;padding:3px 9px;font-size:11.5px;font-weight:700;color:var(--ink2);display:flex;gap:5px;align-items:center;cursor:pointer}
.shoplogo{width:74px;height:56px;border-radius:12px;object-fit:cover;flex:none}
.shophead{display:flex;gap:14px;align-items:flex-start;flex-wrap:wrap}
.inqrow{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-top:8px;flex-wrap:wrap}
.inqrow .ii{flex:1;min-width:200px}
.inqrow .m{font-size:12.5px;color:var(--ink3);margin-top:3px}
.toast{position:fixed;left:50%;transform:translateX(-50%) translateY(24px);bottom:84px;background:var(--purd);color:#fff;font-size:13.5px;font-weight:700;border-radius:12px;padding:11px 18px;box-shadow:0 14px 34px rgba(74,44,150,.3);opacity:0;transition:.25s;z-index:60;max-width:min(92vw,560px);text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:1000px){
  .cols{grid-template-columns:1fr}
  .sgrid,.catgrid{grid-template-columns:repeat(2,1fr)}
  .layout{grid-template-columns:1fr}
  .filter{position:static}
  .steps{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .ggrid{grid-template-columns:1fr 1fr;gap:10px}
  .gname{font-size:13px}
  .gtiers li{font-size:12px}
  .hmini{flex-basis:100%}
  .hmini .mcard:nth-child(n+3){display:none}   /* 手机只留 2 张，避免横向溢出 */
  .tb1{flex-wrap:wrap;gap:10px}
  .search{order:3;flex-basis:100%}
  .search select{max-width:110px}
  .sgrid,.catgrid{grid-template-columns:1fr}
  .kv{grid-template-columns:1fr}
  .mhead{flex-direction:column}
  .mhead img{width:100%}
  .fgrid{grid-template-columns:1fr}
}