/* ===== 黄石工业淘宝 · 交易版样式 ===== */
:root{
  --bronze:#c79a3f; --bronze-2:#e8c66a; --ink:#16181d; --ink-2:#2b2f37;
  --bg:#f4f5f7; --card:#ffffff; --line:#e7e9ec; --txt:#1f2329; --txt-2:#6b7280;
  --red:#d83a2c; --green:#1f9d55; --blue:#2f80ed;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--txt);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;
  border:none;border-radius:8px;padding:9px 18px;font-size:14px;font-weight:600;transition:.18s}
.btn-bronze{background:linear-gradient(135deg,var(--bronze),var(--bronze-2));color:#2a1d05}
.btn-bronze:hover{filter:brightness(1.06)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2)}
.btn-ghost{background:#fff;color:var(--txt);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--bronze);color:var(--bronze)}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ===== 顶栏 ===== */
.mh{position:sticky;top:0;z-index:40;background:linear-gradient(100deg,#1a1d24,#262a33);
  border-bottom:1px solid rgba(255,255,255,.06);box-shadow:0 2px 14px rgba(0,0,0,.18)}
.mh-inner{display:flex;align-items:center;gap:18px;height:64px}
.mh-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px}
.mh-logo img{height:34px;width:34px}
.mh-logo small{display:block;font-size:11px;font-weight:500;color:#c9ccd3;letter-spacing:.5px}
.mh-search{flex:1;max-width:560px;display:flex;background:#fff;border-radius:24px;overflow:hidden}
.mh-search input{flex:1;border:none;outline:none;padding:10px 18px;font-size:14px}
.mh-search button{background:linear-gradient(135deg,var(--bronze),var(--bronze-2));color:#2a1d05;
  border:none;padding:0 26px;font-weight:700;cursor:pointer}
.mh-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.mh-cart{position:relative;display:flex;align-items:center;gap:6px;color:#fff;font-size:14px;cursor:pointer}
.mh-cart svg{width:22px;height:22px}
.cart-badge{position:absolute;top:-8px;right:-10px;min-width:18px;height:18px;line-height:18px;
  text-align:center;background:var(--red);color:#fff;font-size:11px;border-radius:9px;padding:0 4px;display:none}

/* ===== Hero ===== */
.mhero{background:radial-gradient(1200px 400px at 80% -10%,rgba(199,154,63,.18),transparent),
  linear-gradient(180deg,#ffffff,#f4f5f7);border-bottom:1px solid var(--line)}
.mhero-inner{padding:34px 0 30px;display:flex;align-items:center;gap:30px;flex-wrap:wrap}
.mhero-txt{flex:1;min-width:280px}
.mhero-txt .eyebrow{color:var(--bronze);font-weight:700;letter-spacing:1px;font-size:13px}
.mhero-txt h1{font-size:34px;line-height:1.25;margin:10px 0 12px;color:var(--ink)}
.mhero-txt h1 b{color:var(--bronze)}
.mhero-txt p{color:var(--txt-2);max-width:520px}
.mhero-stats{display:flex;gap:26px;margin-top:18px}
.mhero-stats div b{display:block;font-size:22px;color:var(--ink)}
.mhero-stats div span{font-size:12px;color:var(--txt-2)}
.mhero-card{flex:0 0 320px;background:linear-gradient(135deg,#1a1d24,#2b2f37);color:#fff;
  border-radius:16px;padding:22px;box-shadow:0 16px 40px rgba(0,0,0,.22)}
.mhero-card h3{font-size:16px;margin-bottom:12px;color:var(--bronze-2)}
.mhero-card .row{display:flex;justify-content:space-between;font-size:13px;padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.12)}
.mhero-card .row span:last-child{color:var(--bronze-2);font-weight:700}

/* ===== 分类导航 ===== */
.mnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:64px;z-index:30}
.mnav-inner{display:flex;gap:6px;overflow-x:auto;padding:10px 0;scrollbar-width:none}
.mnav-inner::-webkit-scrollbar{display:none}
.mnav a{padding:7px 16px;border-radius:20px;font-size:13.5px;color:var(--txt);white-space:nowrap;
  border:1px solid transparent;transition:.15s}
.mnav a:hover{background:#f1f2f4}
.mnav a.active{background:linear-gradient(135deg,var(--bronze),var(--bronze-2));color:#2a1d05;font-weight:700}

/* ===== 区块标题 ===== */
.sec{padding:30px 0}
.sec-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.sec-hd h2{font-size:22px;color:var(--ink)}
.sec-hd h2 i{color:var(--bronze);font-style:normal;margin-right:8px}
.sec-hd .more{font-size:13px;color:var(--txt-2)}

/* ===== 商品网格 ===== */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:.18s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.1);border-color:var(--bronze)}
.pcard .ph{position:relative;height:172px;background:#eee;overflow:hidden}
.pcard .ph img{width:100%;height:100%;object-fit:cover;display:block}
.pcard .chain-tag{position:absolute;left:10px;top:10px;background:rgba(22,24,29,.78);color:#fff;
  font-size:11px;padding:3px 9px;border-radius:12px}
.pcard .stock-tag{position:absolute;right:10px;top:10px;background:rgba(31,157,85,.92);color:#fff;
  font-size:11px;padding:3px 9px;border-radius:12px}
.pcard .pb{padding:12px 13px 14px;display:flex;flex-direction:column;flex:1}
.pcard .brand{font-size:12px;color:var(--txt-2)}
.pcard .name{font-size:14.5px;font-weight:600;color:var(--ink);margin:3px 0 6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px}
.pcard .spec{font-size:12px;color:var(--txt-2);margin-bottom:8px}
.pcard .price-row{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:10px}
.pcard .price{font-size:17px;font-weight:800;color:var(--red)}
.pcard .price.inq{font-size:14px;color:var(--bronze)}
.pcard .sales{font-size:11px;color:var(--txt-2)}
.pcard .pact{margin-top:auto;display:flex;gap:8px}
.pcard .pact .btn{flex:1;padding:8px 0;font-size:13px}
.pcard .pact .buy{background:var(--ink);color:#fff}
.pcard .pact .buy:hover{background:var(--ink-2)}

/* ===== 通用页 ===== */
.page{padding:26px 0 60px}
.page-hd{margin-bottom:20px}
.page-hd h1{font-size:26px;color:var(--ink)}
.page-hd p{color:var(--txt-2);margin-top:6px}
.empty{text-align:center;padding:60px 0;color:var(--txt-2)}
.empty svg{width:64px;height:64px;opacity:.4;margin-bottom:12px}

/* ===== 采购车 / 订单列表 ===== */
.ctable{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.ctable .crow{display:grid;grid-template-columns:64px 1fr 110px 130px 110px 40px;align-items:center;
  gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}
.ctable .crow.head{background:#fafbfc;font-size:13px;color:var(--txt-2);font-weight:600}
.ctable .crow:last-child{border-bottom:none}
.ctable .ci img{width:64px;height:64px;object-fit:cover;border-radius:8px;background:#eee}
.ctable .cname{font-weight:600;color:var(--ink);font-size:14px}
.ctable .cbrand{font-size:12px;color:var(--txt-2)}
.ctable .cprice{font-weight:700;color:var(--red)}
.ctable .cprice.inq{color:var(--bronze);font-weight:600}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.qty button{width:30px;height:30px;border:none;background:#f6f7f9;cursor:pointer;font-size:16px;color:var(--txt)}
.qty button:hover{background:#eceef1}
.qty input{width:42px;height:30px;border:none;text-align:center;font-size:13px;outline:none}
.cdel{color:var(--txt-2);cursor:pointer;font-size:18px;text-align:center}
.cdel:hover{color:var(--red)}
.cfoot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;flex-wrap:wrap;gap:14px}
.cfoot .total{font-size:15px}
.cfoot .total b{font-size:24px;color:var(--red);margin-left:6px}
.cfoot .total .inq-note{font-size:12px;color:var(--txt-2);margin-left:8px}

/* ===== 结算表单 ===== */
.cols{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.panel h3{font-size:16px;margin-bottom:14px;color:var(--ink)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--txt-2);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:8px;
  padding:10px 12px;font-size:14px;outline:none;font-family:inherit}
.field input:focus,.field textarea:focus{border-color:var(--bronze)}
.field .two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.summary .srow{display:flex;justify-content:space-between;font-size:13px;padding:7px 0;border-bottom:1px dashed var(--line)}
.summary .stotal{display:flex;justify-content:space-between;font-weight:800;font-size:16px;margin-top:10px}
.summary .stotal b{color:var(--red)}
.notice{background:#fff8e9;border:1px solid #f3e0b0;color:#8a6d1f;border-radius:10px;
  padding:12px 14px;font-size:13px;margin-bottom:16px}

/* ===== 订单卡 ===== */
.ocard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:14px}
.ocard .ohd{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);
  padding-bottom:10px;margin-bottom:12px}
.ocard .ono{font-weight:700;color:var(--ink)}
.ocard .otime{font-size:12px;color:var(--txt-2)}
.ocard .ostatus{background:var(--bronze);color:#2a1d05;font-size:12px;padding:3px 10px;border-radius:10px;font-weight:700}
.ocard .oi{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line)}
.ocard .oi img{width:48px;height:48px;object-fit:cover;border-radius:8px;background:#eee}
.ocard .oi .nm{flex:1;font-size:13.5px;font-weight:600}
.ocard .oi .qy{font-size:12px;color:var(--txt-2)}
.ocard .of{display:flex;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--txt-2)}
.ocard .of b{color:var(--ink)}

/* ===== 页脚 ===== */
.mfoot{background:#16181d;color:#aeb2ba;padding:34px 0;margin-top:30px;font-size:13px}
.mfoot .fg{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.mfoot h4{color:#fff;font-size:14px;margin-bottom:10px}
.mfoot a{color:#aeb2ba;display:block;padding:3px 0}
.mfoot a:hover{color:var(--bronze-2)}
.mfoot .copy{border-top:1px solid rgba(255,255,255,.08);margin-top:22px;padding-top:16px;text-align:center;color:#7c8189}

/* ===== 悬浮客服（弱化） ===== */
.mfab{position:fixed;right:20px;bottom:20px;display:flex;align-items:center;gap:7px;
  background:linear-gradient(135deg,var(--bronze),var(--bronze-2));color:#2a1d05;font-weight:700;
  padding:11px 16px;border-radius:30px;cursor:pointer;box-shadow:0 10px 28px rgba(199,154,63,.5);z-index:60}
.mfab svg{width:20px;height:20px}

/* ===== 响应式 ===== */
@media(max-width:980px){.pgrid{grid-template-columns:repeat(3,1fr)}.cols{grid-template-columns:1fr}
  .mhero-card{display:none}.ctable .crow{grid-template-columns:54px 1fr 90px 100px 36px}}
@media(max-width:680px){.pgrid{grid-template-columns:repeat(2,1fr)}.mh-search{display:none}
  .mhero-txt h1{font-size:26px}.ctable .crow.head{display:none}.ctable .crow{grid-template-columns:54px 1fr;gap:10px}
  .ctable .cprice,.ctable .qty{display:none}.mfoot .fg{grid-template-columns:1fr}}

/* ===== AI 撮合 ===== */
.ai-match{background:linear-gradient(135deg,#1a1d24,#2b2f37);border-radius:16px;padding:24px;color:#fff}
.ai-match-in{display:flex;gap:10px}
.ai-match-in input{flex:1;border:none;border-radius:10px;padding:13px 16px;font-size:15px;outline:none}
.ai-match-in .btn{padding:0 26px}
.ai-match-tip{font-size:12.5px;color:#c9a24a;margin-top:12px}
.ai-match-res{margin-top:16px}
.ai-match-head{font-size:14px;color:var(--bronze-2);margin-bottom:10px}
.ai-match-item{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px 14px;margin-bottom:10px}
.ai-match-item>img{width:56px;height:56px;object-fit:cover;border-radius:8px;background:#333}
.ai-match-item .ami-info{flex:1;min-width:0}
.ai-match-item .ami-name{font-weight:600}
.ai-match-item .ami-meta{font-size:12px;color:#b9bdc6}
.ai-match-item .ami-price{font-weight:700;color:var(--bronze-2)}
.ai-match-item .ami-price.inq{color:#f0c14b}

/* ===== AI 客服面板 ===== */
.ai-panel{position:fixed;right:20px;bottom:78px;width:330px;max-width:92vw;height:440px;max-height:78vh;
  background:#fff;border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.28);z-index:61;
  display:flex;flex-direction:column;overflow:hidden}
.ai-panel-hd{background:linear-gradient(135deg,var(--bronze),var(--bronze-2));color:#2a1d05;
  padding:12px 14px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.ai-panel-hd button{border:none;background:transparent;font-size:20px;cursor:pointer;color:#2a1d05;line-height:1}
.ai-msgs{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;background:#f7f8fa}
.ai-msg{max-width:80%;padding:9px 12px;border-radius:12px;font-size:13.5px;line-height:1.5;word-break:break-word}
.ai-msg.bot{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.ai-msg.user{background:linear-gradient(135deg,var(--bronze),var(--bronze-2));color:#2a1d05;align-self:flex-end;border-bottom-right-radius:4px}
.ai-input{display:flex;border-top:1px solid var(--line)}
.ai-input input{flex:1;border:none;padding:12px;outline:none;font-size:14px}
.ai-input button{border:none;background:var(--ink);color:#fff;padding:0 18px;cursor:pointer;font-weight:600}
@media(max-width:680px){.ai-panel{right:10px;left:10px;width:auto}.ai-match-in{flex-direction:column}.ai-match-in .btn{padding:11px}}