/* ==========================================================================
   Toprecision 在线商城 · 设计系统
   品牌蓝体系 · 中文 · 响应式
   ========================================================================== */
:root{
  --brand:#1B57C4;
  --brand-dark:#14439A;
  --brand-deep:#0E2F6E;
  --brand-soft:#EAF1FE;
  --accent:#1B57C4;
  --ink:#22303F;
  --muted:#66788E;
  --line:#E3E8F0;
  --line-soft:#EEF2F7;
  --bg:#F7F9FC;
  --white:#fff;
  --danger:#D0342C;
  --ok:#27AE60;
  --radius:10px;
  --shadow:0 2px 12px rgba(20,50,110,.08);
  --shadow-lg:0 8px 30px rgba(20,50,110,.14);
  --font:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:var(--font);cursor:pointer}
input,select,textarea{font-family:var(--font);font-size:14px;color:var(--ink)}

.container{width:100%;max-width:none;margin:0 auto;padding:0 20px}
@media(max-width:560px){.container{padding:0 12px}}
.hidden{display:none!important}

/* ---------- 头部（slogan行 + 导航 合并整体，统一背景图） ---------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--white) url("../images/bj-1.png") center 45% / cover no-repeat;box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 8px 26px rgba(6,22,48,.30)}
.site-header::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,28,60,.82) 0%,rgba(9,28,60,.66) 42%,rgba(9,28,60,.74) 100%);pointer-events:none}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,rgba(27,87,196,0),#1B57C4 16%,#1B57C4 84%,rgba(27,87,196,0));pointer-events:none;z-index:1}
.topbar{position:relative;z-index:2;background:transparent;color:#FFFFFF;font-size:12px;letter-spacing:.3px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar a{color:rgba(255,255,255,.75);transition:color .2s}
.topbar a:hover{color:#FFFFFF;opacity:.85}
.topbar .tb-contact{display:flex;gap:16px;align-items:center}
.topbar .tb-slogan{font-weight:600;color:#FFFFFF;text-shadow:0 1px 2px rgba(0,0,0,.25)}
.topbar .tb-contact .sep{color:rgba(255,255,255,.35)}
.header-main{position:relative;z-index:2;display:grid;grid-template-columns:auto 1fr auto;align-items:center;height:126px}
.hdr-mid{display:flex;align-items:center;justify-content:center;gap:22px;min-width:0;flex:1}
.hdr-quick{display:flex;align-items:center;gap:20px;flex-wrap:nowrap}
.hdr-quick a{color:rgba(255,255,255,.9);font-size:13px;font-weight:600;letter-spacing:.3px;white-space:nowrap;padding:2px 0;border-bottom:1px solid transparent;transition:.2s}
.hdr-quick a:hover{color:#fff;border-bottom-color:rgba(255,215,94,.8)}
.hdr-quick a .badge{background:var(--accent);color:#fff;font-size:10.5px;border-radius:9px;padding:0 6px;margin-left:3px}
.logo{justify-self:start;display:flex;align-items:center;gap:12px}
.logo .logo-mark{height:46px;width:auto}
.logo-txt{display:flex;flex-direction:column;align-items:center;line-height:1.15;text-shadow:0 1px 4px rgba(0,0,0,.35)}
.logo-txt b{font-size:18px;font-weight:800;color:#fff;letter-spacing:2.5px;font-family:Arial,'Helvetica Neue',sans-serif;text-shadow:0 1px 3px rgba(0,0,0,.45)}
.logo-txt i{font-style:normal;font-size:12.5px;font-weight:600;color:rgba(255,255,255,.94);letter-spacing:7px;margin-top:2px;text-indent:7px;text-shadow:0 1px 2px rgba(0,0,0,.4)}
.header-actions{justify-self:end;display:flex;align-items:center;gap:8px}
.icon-btn{position:relative;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--white);display:flex;align-items:center;justify-content:center;color:var(--ink)}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.icon-btn .badge{position:absolute;top:-6px;right:-6px;background:var(--danger);color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px;font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:8px;padding:0 18px;height:40px;font-size:14px;font-weight:600;transition:.2s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-gold{background:var(--accent);color:#fff}
.btn-gold:hover{background:var(--brand-dark);color:#fff}
.btn-outline{background:transparent;border:1px solid var(--brand);color:var(--brand)}
.btn-outline:hover{background:var(--brand-soft)}
.header-actions .btn-outline{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.55);color:#FFFFFF}
.header-actions .btn-outline:hover{background:#FFFFFF;color:var(--brand-deep)}
.header-actions .btn-ghost{background:rgba(255,255,255,.16);color:#FFFFFF;border:1px solid rgba(255,255,255,.28)}
.header-actions .btn-ghost:hover{background:rgba(255,255,255,.28);color:#FFFFFF}
.header-actions .dropdown a{color:var(--ink)}
.header-actions .icon-btn{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.40);color:#fff}
.header-actions .icon-btn:hover{background:#fff;color:var(--brand);border-color:#fff}
.btn-ghost{background:#F5F9FF;color:var(--ink)}
.btn-ghost:hover{background:#EAF1FE}
.btn-sm{height:32px;padding:0 12px;font-size:13px}
.btn-block{width:100%}

/* ---------- 搜索 ---------- */
.search-box{display:flex;flex:0 1 420px}
.search-box input{flex:1;height:40px;border:2px solid var(--brand);border-right:none;border-radius:10px 0 0 10px;padding:0 14px;outline:none}
.search-box button{width:52px;height:40px;border:none;background:var(--brand);color:#fff;border-radius:0 10px 10px 0;font-size:15px}

/* ---------- 搜索浮层 ---------- */
.search-panel{position:fixed;inset:0;background:rgba(14,40,80,.5);z-index:200;display:none;align-items:flex-start;justify-content:center;padding-top:90px}
.search-panel.open{display:flex}
.search-panel .panel{background:#fff;border-radius:14px;width:min(680px,92vw);padding:18px;box-shadow:var(--shadow-lg)}
.search-panel .panel input{width:100%;height:46px;border:2px solid var(--brand);border-radius:10px;padding:0 14px;font-size:15px;outline:none}
.hot-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.hot-words a{background:var(--brand-soft);color:var(--brand);padding:4px 12px;border-radius:16px;font-size:13px}
.hot-words a:hover{background:var(--brand);color:#fff}
.suggest{max-height:320px;overflow:auto;margin-top:8px}
.suggest a{display:flex;justify-content:space-between;padding:9px 12px;border-radius:8px;color:var(--ink)}
.suggest a:hover{background:var(--brand-soft)}

/* ---------- 主导航条（替换原分类条，高度 52px 不变） ---------- */
.hdr-navbar{position:relative;z-index:2;background:transparent}
.hdr-navbar-inner{display:flex;align-items:center;justify-content:flex-start;height:52px;gap:2px;overflow-x:auto;scrollbar-width:none}
.hdr-navbar-inner::-webkit-scrollbar{display:none}
.hdr-navbar a{display:flex;align-items:center;height:52px;padding:0 26px;color:rgba(255,255,255,.92);font-size:15px;font-weight:600;letter-spacing:.2px;text-shadow:0 1px 2px rgba(0,0,0,.35);white-space:nowrap;transition:all .18s;border-radius:0;text-decoration:none;position:relative}
.hdr-navbar a:hover{color:#fff;background:rgba(255,255,255,.12)}
.hdr-navbar a .badge{color:#fff}
@media(max-width:900px){.hdr-navbar{display:none}.hdr-quick{display:none}}
/* ---------- 主栏搜索区（logo 右侧通栏大搜索 + 热门词 + 联想） ---------- */
.hdr-search-zone{justify-self:stretch;width:100%;max-width:560px;margin:0;position:relative}
.hdr-search-zone:focus-within .search-box input{border-color:#1B57C4;box-shadow:0 0 0 3px rgba(27,87,196,.22)}
.hdr-search-zone .search-box{flex:1}
.hdr-search-zone .search-box input{height:46px;font-size:14.5px;background:#fff;border-radius:12px 0 0 12px;box-shadow:inset 0 1px 2px rgba(12,35,70,.06)}
.hdr-search-zone .search-box button{width:80px;height:46px;font-size:15px;font-weight:700;border-radius:0 12px 12px 0;background:linear-gradient(180deg,#1B57C4,#14439A);box-shadow:inset 0 -2px 0 rgba(0,0,0,.12)}

.hdr-suggest{position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);max-height:320px;overflow:auto;z-index:80;display:none}
.hdr-suggest.show{display:block}
.hdr-suggest a{display:flex;justify-content:space-between;align-items:center;padding:9px 14px;color:var(--ink);font-size:13.5px;text-decoration:none}
.hdr-suggest a:hover{background:var(--brand-soft)}

/* ---------- 轮播 ---------- */
.banner{position:relative;border-radius:14px;overflow:hidden;margin:18px 0;box-shadow:var(--shadow)}
.banner .slides{position:relative}
.banner .slide{display:none}
.banner .slide.active{display:block}
.banner .slide img{width:100%;height:360px;object-fit:cover}
.banner .dots{position:absolute;bottom:14px;left:0;right:0;display:flex;justify-content:center;gap:8px}
.banner .dots span{width:8px;height:8px;border-radius:4px;background:rgba(255,255,255,.6);cursor:pointer}
.banner .dots span.active{background:#fff;width:22px}

/* ---------- 分区 ---------- */
.section{margin:44px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px}
.section-head h2{font-size:20px;font-weight:700;color:var(--brand-deep);display:flex;align-items:center;gap:10px}
.section-head h2::before{content:"";width:4px;height:20px;background:var(--brand);border-radius:2px}
.section-head .more{font-size:13px;color:var(--muted)}
.section-head .more:hover{color:var(--brand)}

/* ---------- 维度入口卡片 ---------- */
.dim-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.dim-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:20px;transition:.25s}
.dim-card:hover{box-shadow:var(--shadow);border-color:var(--brand)}
.dim-card .d-name{font-size:17px;font-weight:700;color:var(--brand-deep);margin-bottom:4px;display:flex;align-items:center;gap:8px}
.dim-card .d-desc{font-size:12.5px;color:var(--muted);margin-bottom:12px}
.dim-card .d-list{display:flex;flex-wrap:wrap;gap:6px}
.dim-card .d-list a{background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;padding:4px 10px;border-radius:14px;border:1px solid transparent}
.dim-card .d-list a:hover{background:var(--brand);color:#fff}

/* ---------- 行业方案卡片（图片居左 + 文字居右） ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ind-card{display:flex;background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;box-shadow:0 2px 8px rgba(20,50,100,.05)}
.ind-card:hover{box-shadow:var(--shadow);border-color:var(--brand)}
.ind-img{width:42%;flex-shrink:0;background:#F5F9FF;min-height:150px;overflow:hidden}
.ind-img img{width:100%;height:100%;object-fit:cover;display:block}
.ind-body{padding:16px 16px 14px;display:flex;flex-direction:column;justify-content:center;gap:6px;min-width:0}
.ind-title{font-size:17px;font-weight:800;color:var(--brand-deep)}
.ind-tag{font-size:12px;font-weight:600;color:var(--brand);background:rgba(27,87,196,.08);border:1px solid rgba(27,87,196,.25);padding:2px 9px;border-radius:12px;width:fit-content}
.ind-desc{font-size:12.5px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ind-more a{font-size:13px;color:var(--brand-dark);font-weight:700}
.ind-more a:hover{color:var(--accent)}

/* ---------- 客户晒单 ---------- */
.showoff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.showoff-card{display:flex;gap:14px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:14px;transition:.25s;align-items:center}
.showoff-card:hover{box-shadow:var(--shadow);border-color:var(--brand)}
.so-img{width:86px;height:86px;flex:0 0 auto;background:#F5F9FF;border-radius:10px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.so-img img{width:100%;height:100%;object-fit:contain}
.so-body{min-width:0;display:flex;flex-direction:column;gap:6px}
.so-stars{color:#F0A020;font-size:13px;letter-spacing:1px}
.so-text{font-size:13px;color:var(--ink);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.so-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.so-name{font-size:12px;font-weight:700;color:var(--brand-deep)}
.so-prod{font-size:11.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:120px}

/* ---------- 畅销爆款：一行 6 款 ---------- */
.hot6{grid-template-columns:repeat(6,1fr);gap:12px}

/* ---------- 列表视图切换 ---------- */
.toolbar-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.view-switch{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.view-switch button{border:0;background:transparent;padding:6px 14px;font-size:13px;color:var(--muted);cursor:pointer;display:flex;align-items:center;gap:5px}
.view-switch button.active{background:var(--brand);color:#fff}
.sort-bar{display:flex;align-items:center;gap:8px}

/* ---------- 规格对比表格视图 ---------- */
.tg-card{margin-bottom:18px}
.tg-head{display:flex;align-items:center;gap:10px;padding:10px 14px;background:linear-gradient(90deg,#0E2F6E,#14439A);color:#fff;border-radius:12px 12px 0 0}
.tg-title{font-size:15px;font-weight:700;letter-spacing:.5px}
.tg-cat{font-size:12px;color:rgba(255,255,255,.75);background:rgba(255,255,255,.14);padding:2px 10px;border-radius:20px}
.tg-count{margin-left:auto;font-size:12.5px;color:rgba(255,255,255,.85);background:rgba(255,255,255,.14);padding:2px 12px;border-radius:20px}
.table-view{display:none}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow-sm)}
.spec-table{width:100%;border-collapse:collapse;font-size:12.5px;min-width:720px}
.spec-table th{position:sticky;top:0;background:linear-gradient(180deg,#F5F9FF,#EAF1FE);color:#0E2F6E;font-weight:700;padding:9px 10px;border-bottom:2px solid #E3E8F0;white-space:nowrap;text-align:left;z-index:2}
.spec-table th.col-spec{cursor:pointer;user-select:none}
.spec-table th.col-spec:hover{background:#EAF1FE}
.spec-table th .th-inner{display:flex;align-items:center;gap:4px}
.spec-table th .f-icon{font-size:10px;color:var(--brand);opacity:.7}
.spec-table th.filtered .f-icon{opacity:1}
.spec-table td{padding:8px 10px;border-bottom:1px solid #E3E8F0;color:#22303F;white-space:nowrap}
.spec-table tr:nth-child(even) td{background:#F5F9FF}
.spec-table tr:hover td{background:#EAF1FE}
.spec-table td.td-prod{min-width:190px}
.spec-table td.td-prod .tp-row{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.spec-table td.td-prod img{width:44px;height:44px;object-fit:contain;background:#F5F9FF;border-radius:8px;border:1px solid var(--line-soft);flex:0 0 auto}
.spec-table td.td-prod .tp-name{font-weight:600;color:#0E2F6E;font-size:12.5px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.spec-table td.td-prod .tp-sub{font-size:11px;color:var(--muted);margin-top:2px}
.spec-table td.td-price{color:#D63031;font-weight:700;font-size:13px}
.spec-table td.td-no{color:var(--muted);font-size:11.5px}
.spec-table td.td-op{white-space:nowrap}
.spec-table .btn-xs{padding:3px 9px;font-size:12px;border-radius:6px}
/* 筛选下拉 */
.th-filter{position:relative}
.filter-panel{position:absolute;top:calc(100% + 4px);left:0;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(15,42,80,.14);z-index:50;min-width:220px;max-width:300px;padding:8px;display:none}
.filter-panel.open{display:block}
.fp-head{display:flex;justify-content:space-between;align-items:center;padding:2px 2px 8px;border-bottom:1px solid var(--line-soft);margin-bottom:6px}
.fp-head b{font-size:12.5px;color:#0E2F6E}
.fp-clear{font-size:12px;color:var(--brand);cursor:pointer;border:0;background:none;padding:0}
.fp-list{max-height:260px;overflow:auto}
.fp-item{display:flex;align-items:center;gap:8px;padding:5px 4px;border-radius:6px;cursor:pointer;font-size:12.5px;color:var(--ink)}
.fp-item:hover{background:var(--brand-soft)}
.fp-item input{accent-color:var(--brand)}
.fp-item .fp-cnt{margin-left:auto;font-size:11px;color:var(--muted)}
.fp-item.off{opacity:.5}
.fp-range{display:flex;align-items:center;gap:6px;padding:4px 0}
.fp-range input{width:70px;border:1px solid var(--line);border-radius:6px;padding:4px 6px;font-size:12px;outline:none}
.fp-range input:focus{border-color:var(--brand)}
.fp-range span{font-size:11px;color:var(--muted)}
.fp-search{width:100%;border:1px solid var(--line);border-radius:6px;padding:5px 8px;font-size:12px;margin-bottom:6px;outline:none;box-sizing:border-box}
.fp-search:focus{border-color:var(--brand)}
.fp-apply{width:100%;margin-top:6px}
.th-filter .badge-dot{position:absolute;top:2px;right:2px;width:6px;height:6px;background:var(--accent);border-radius:50%}
.fp-none{font-size:12px;color:var(--muted);text-align:center;padding:8px 0}

/* ---------- 商品卡片 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.prod-card{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.prod-card:hover{box-shadow:var(--shadow);border-color:var(--line-soft)}
.prod-card .p-img{aspect-ratio:1/1;background:#fff;overflow:hidden;display:flex;align-items:center;justify-content:center;position:relative}
.prod-card .p-img img{width:100%;height:100%;object-fit:contain;transition:.3s}
.prod-card:hover .p-img img{transform:scale(1.05)}
.prod-card .p-info{padding:12px 14px 14px;flex:1;display:flex;flex-direction:column;gap:6px}
.prod-card .p-name{font-size:14px;font-weight:600;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:41px}
.prod-card .p-summary{font-size:12px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.prod-card .p-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:2px}
.prod-card .p-tags span{font-size:11px;color:var(--brand);background:var(--brand-soft);border-radius:4px;padding:1px 6px}
.prod-card .p-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px}
.prod-card .p-price{font-size:16px;font-weight:700;color:var(--ink)}
.prod-card .p-price small{font-size:12px;font-weight:400;color:var(--muted);margin-right:2px}
.prod-card .p-price .rfq{font-size:13px;font-weight:600;color:var(--brand)}
.prod-card .p-cart{width:34px;height:34px;border-radius:9px;border:none;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px}
.prod-card .p-cart:hover{background:var(--brand);color:#fff}

/* ---------- 列表页布局 ---------- */
.list-layout{display:grid;grid-template-columns:260px 1fr;gap:18px;margin:18px 0;align-items:start}
.facet-panel{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:14px 12px;position:sticky;top:76px}
.facet-group{border-bottom:1px solid var(--line-soft);padding:12px 0}
.facet-group:last-child{border-bottom:none}
.facet-group h4{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.5px;margin:0 0 6px;padding:0 8px}
.facet-group h4 span{color:var(--muted);font-weight:400;font-size:12px}
.facet-group .f-item{display:flex;align-items:center;gap:8px;padding:5px 8px;border-radius:8px;font-size:13.5px;color:var(--ink);cursor:pointer;position:relative}
.facet-group .f-item:hover{background:var(--brand-soft)}
.facet-group .f-item input{accent-color:var(--brand);width:15px;height:15px}
.facet-group .f-item .cnt{margin-left:auto;color:var(--muted);font-size:12px}
.facet-group .f-item.selected{background:var(--brand-soft);color:var(--brand);font-weight:600}
.facet-group .f-item .num{position:absolute;right:8px;font-size:11.5px;color:var(--muted)}
.facet-sub{padding-left:22px}
.facet-actions{display:flex;gap:8px;margin-top:12px}
.list-main{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.list-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.list-toolbar .crumb{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.list-toolbar .crumb a{color:var(--muted)}
.list-toolbar .crumb a:hover{color:var(--brand)}
.crumbs-sep{color:#C6D2E2}
.sort-bar{display:flex;gap:6px;flex-wrap:wrap}
.sort-bar button{border:1px solid var(--line);background:var(--white);border-radius:8px;padding:6px 12px;font-size:13px;color:var(--ink)}
.sort-bar button.active{background:var(--brand);border-color:var(--brand);color:#fff}
.filter-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.chip{background:var(--brand-soft);border:1px solid #E3E8F0;color:var(--brand-dark);font-size:12.5px;border-radius:14px;padding:3px 10px;display:inline-flex;align-items:center;gap:6px}
.chip button{border:none;background:none;color:var(--brand);font-size:13px;padding:0}
.result-count{font-size:13px;color:var(--muted);margin-bottom:10px}
.result-count b{color:var(--brand);font-size:15px}

/* ---------- 详情页 ---------- */
.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:20px 0;align-items:start}
.gallery{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px}
.gallery .main-img{aspect-ratio:1/1;background:#fff;border-radius:10px;overflow:hidden;display:flex;align-items:center;justify-content:center;margin-bottom:12px;position:relative}
.gallery .main-img img{max-width:100%;max-height:100%;object-fit:contain;cursor:zoom-in;transition:transform .18s ease}
.gallery .main-img img.zoom-in{transform:scale(2.2);transition:transform .05s ease}
/* 主图放大镜：右上角提示图标 */
.main-img .zoom-ico{position:absolute;top:12px;right:12px;z-index:5;width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,.94);color:var(--brand-deep);display:flex;align-items:center;justify-content:center;box-shadow:0 3px 10px rgba(15,42,80,.25);pointer-events:none;transition:.2s}
.main-img .zoom-ico svg{width:15px;height:15px}
.gallery .thumbs{display:flex;gap:8px;flex-wrap:wrap}
.gallery .thumbs img{width:46px;height:46px;object-fit:contain;border:2px solid var(--line);border-radius:8px;cursor:pointer;background:#fff;padding:3px;transition:border-color .2s ease}
.gallery .thumbs img:hover{border-color:var(--brand)}
.gallery .thumbs img.active{border-color:var(--brand)}

/* 详情页：描述层次化 */
.d-sec-h{font-size:17px;font-weight:700;color:var(--brand-deep);margin:30px 0 14px;padding-left:12px;border-left:4px solid var(--brand);line-height:1.4}
.d-sec-h:first-child{margin-top:0}
.d-sec-h2{font-size:14.5px;font-weight:600;color:var(--brand-deep);margin:18px 0 8px;line-height:1.5}
.d-para{font-size:14px;line-height:2.1;color:#22303F;margin:10px 0;text-align:justify}
/* 详情页相关推荐：2 行 × 6 款 */
.tab-pane .prod-grid{grid-template-columns:repeat(6,1fr);gap:12px}
.d-ul{list-style:none;margin:8px 0 14px;padding:0}
.d-ul li{font-size:14px;line-height:2;color:#22303F;padding:9px 14px;margin:6px 0;background:#F5F9FF;border:1px solid #E3E8F0;border-radius:10px}
.d-ul li b{color:var(--brand-deep)}
.d-spec{margin:8px 0 14px;background:#F5F9FF;border:1px solid #E3E8F0;border-radius:12px;overflow:hidden}
.d-spec-inner{display:grid;grid-template-columns:1fr 1fr;gap:0}
.d-spec-row{display:flex;align-items:flex-start;gap:10px;padding:11px 16px;border-bottom:1px dashed #E3E8F0}
.d-spec-row:nth-child(odd){border-right:1px dashed #E3E8F0}
.d-spec-row.full{grid-column:1/-1;border-right:none}
.d-spec .d-sk{flex:0 0 auto;min-width:84px;font-weight:600;color:var(--brand-deep);font-size:13px}
.d-spec .d-sv{font-size:13px;color:#66788E;line-height:1.8}
.d-foot{margin-top:24px;padding-top:14px;border-top:1px dashed #E3E8F0;color:var(--muted);font-size:13px}
@media(max-width:700px){.d-spec-inner{grid-template-columns:1fr}.d-spec-row:nth-child(odd){border-right:none}}

/* 详情页：用户评论 */
.comment-wrap{max-width:980px}
.c-head{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#F5F9FF;border:1px solid #E3E8F0;border-radius:14px;padding:18px 22px;margin-bottom:18px;flex-wrap:wrap}
.c-score{display:flex;align-items:center;gap:12px}
.c-score>b{font-size:34px;color:var(--brand-deep);line-height:1}
.c-stars{display:flex;gap:2px;color:#D9A53B;font-size:16px;letter-spacing:1px}
.c-stars .star.on{color:#F0A020}
.c-total{font-size:13px;color:var(--muted)}
.c-rating-tip{font-size:12.5px;color:var(--muted);margin-left:10px}
.c-form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:18px;box-shadow:var(--shadow-sm)}
.c-form-h{font-size:15px;font-weight:600;color:var(--brand-deep);margin-bottom:12px}
.c-rating{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--ink);margin-bottom:10px}
.star-box{display:inline-flex;gap:4px;font-size:26px;color:#D9A53B;cursor:pointer;user-select:none}
.star-box .star-sel{transition:.15s}
.star-box .star-sel:hover{transform:scale(1.15)}
.c-form textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;font-size:14px;font-family:inherit;line-height:1.8;resize:vertical;box-sizing:border-box;color:var(--ink);background:#F5F9FF}
.c-form textarea:focus{outline:none;border-color:var(--brand);background:#fff}
.c-form-actions{display:flex;gap:10px;margin-top:12px;justify-content:flex-end}
.c-list{display:flex;flex-direction:column;gap:12px}
.c-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;transition:.2s}
.c-item:hover{border-color:#E3E8F0;box-shadow:var(--shadow-sm)}
.c-top{display:flex;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.c-name{font-size:13.5px;font-weight:600;color:var(--brand-deep)}
.c-time{font-size:12px;color:var(--muted);margin-left:auto}
.c-text{font-size:14px;line-height:1.95;color:#22303F}
.c-empty{text-align:center;color:var(--muted);font-size:14px;background:#F5F9FF;border:1px dashed #E3E8F0;border-radius:14px;padding:36px 20px}
/* 评论关键词聚合（淘宝/拼多多风格） */
.c-kw{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#F5F9FF;border:1px solid var(--line-soft);border-radius:12px;padding:12px 16px;margin-bottom:16px}
.c-kw-t{font-size:13px;color:var(--muted);flex:0 0 auto}
.c-kw-chips{display:flex;flex-wrap:wrap;gap:8px}
.c-kw-chip{display:inline-flex;align-items:center;gap:5px;border:1px solid #E3E8F0;background:#fff;color:#22303F;font-size:12.5px;padding:5px 11px;border-radius:999px;cursor:pointer;transition:.18s}
.c-kw-chip i{font-style:normal;font-size:11px;color:var(--brand);background:#EAF1FE;border-radius:999px;padding:1px 7px;font-weight:600}
.c-kw-chip:hover{border-color:var(--brand);color:var(--brand)}
.c-kw-chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.c-kw-chip.on i{background:rgba(255,255,255,.22);color:#fff}
.c-filter-tip{font-size:13px;color:#66788E;background:#F5F9FF;border:1px dashed #E3E8F0;border-radius:10px;padding:9px 14px;margin-bottom:12px}
.c-filter-tip a{color:var(--brand);font-weight:600;text-decoration:none}
.buy-panel{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px}
.buy-panel h1{font-size:22px;font-weight:700;color:var(--ink);line-height:1.4;margin-bottom:6px}
.buy-panel .d-sub{font-size:13.5px;color:var(--muted);margin-bottom:14px}
.price-row{background:#F5F9FF;border:1px solid #E3E8F0;border-radius:10px;padding:12px 16px;margin-bottom:14px;display:flex;align-items:baseline;gap:8px}
.price-row .now{font-size:26px;font-weight:800;color:var(--ink)}
.price-row .now small{font-size:13px}
.price-row .rfq{font-size:18px;font-weight:700;color:var(--brand)}
.price-row .unit{font-size:12.5px;color:var(--muted)}
.price-tax-tip{font-size:11.5px;color:#66788E;margin-top:4px;width:100%}
.spec-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px}
.spec-table th,.spec-table td{border:1px solid var(--line-soft);padding:8px 12px;text-align:left}
.spec-table th{background:var(--bg);color:var(--brand-deep);width:130px;font-weight:600}
/* 购买面板：查看全部规格 */
.attr-more{margin:-6px 0 6px;text-align:right}
.attr-more a{font-size:12.5px;color:var(--brand);font-weight:600;text-decoration:none}
.attr-more a:hover{text-decoration:underline}
.qty-row{display:flex;align-items:center;gap:10px;margin:14px 0}
.qty-box{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden}
.qty-box button{width:36px;height:38px;border:none;background:var(--bg);font-size:16px}
.qty-box input{width:56px;height:38px;border:none;text-align:center;outline:none;font-size:14px}
.action-row{display:flex;gap:10px;margin:16px 0;flex-wrap:wrap}
.action-row .btn{flex:1;min-width:140px}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.tag-row .tag{background:var(--brand-soft);color:var(--brand-dark);font-size:12px;border-radius:5px;padding:2px 9px}
.detail-tabs{margin:24px 0}
.tab-nav{display:flex;gap:2px;border-bottom:2px solid var(--line);margin-bottom:0}
.tab-nav button{border:none;background:none;padding:12px 22px;font-size:15px;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-2px}
.tab-nav button.active{color:var(--brand);border-color:var(--brand)}
.tab-panel{background:var(--white);border:1px solid var(--line);border-top:none;border-radius:0 0 12px 12px;padding:22px}
.tab-panel p{margin:8px 0;color:#66788E;font-size:14px;line-height:1.9}
.tab-panel ul{list-style:disc;padding-left:22px;margin:8px 0}
.tab-panel li{margin:5px 0;color:#66788E;font-size:14px}

/* ---------- 购物车 ---------- */
.cart-layout{display:grid;grid-template-columns:1fr 320px;gap:18px;margin:18px 0;align-items:start}
.cart-list{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.cart-head,.cart-row{display:grid;grid-template-columns:40px 90px 1fr 100px 110px 80px 50px;align-items:center;gap:10px;padding:12px 16px}
.cart-head{background:var(--bg);font-size:13px;color:var(--muted);font-weight:600}
.cart-row{border-top:1px solid var(--line-soft)}
.cart-row .c-img{width:80px;height:80px;background:#fff;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.cart-row .c-img img{width:100%;height:100%;object-fit:contain}
.cart-row .c-name{font-size:14px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cart-row .c-price{color:var(--ink);font-weight:600}
.cart-row .c-rm{color:#C6D2E2;font-size:17px;border:none;background:none}
.cart-row .c-rm:hover{color:var(--danger)}
.cart-side{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:18px;position:sticky;top:76px}
.cart-side h3{font-size:15px;font-weight:700;color:var(--brand-deep);margin-bottom:14px}
.cart-total-row{display:flex;justify-content:space-between;margin:8px 0;font-size:14px}
.cart-total-row.total{border-top:1px dashed var(--line);padding-top:12px;margin-top:12px;font-weight:700;font-size:15px}
.cart-total-row.total .num{color:var(--ink);font-size:20px}

/* ---------- 表单 ---------- */
.form-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:26px;max-width:520px;margin:0 auto}
.form-card h2{font-size:20px;font-weight:700;color:var(--brand-deep);margin-bottom:18px;text-align:center}
.form-item{margin-bottom:16px}
.form-item label{display:block;font-size:13.5px;font-weight:600;color:var(--brand-deep);margin-bottom:6px}
.form-item input,.form-item select,.form-item textarea{width:100%;height:42px;border:1px solid var(--line);border-radius:9px;padding:0 12px;outline:none;transition:.2s}
.form-item textarea{height:auto;padding:10px 12px;resize:vertical}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(27,87,196,.12)}
.form-item .err{color:var(--danger);font-size:12.5px;margin-top:4px;display:none}
.form-item.has-err input,.form-item.has-err select{border-color:var(--danger)}
.form-item.has-err .err{display:block}
.form-tip{font-size:12.5px;color:var(--muted);text-align:center;margin-top:12px}
.form-tip a{color:var(--brand)}
.form-actions{margin-top:20px}

/* ---------- 结算 ---------- */
.checkout-layout{display:grid;grid-template-columns:1fr 360px;gap:18px;margin:18px 0;align-items:start}
.panel-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:16px}
.panel-card h3{font-size:15.5px;font-weight:700;color:var(--brand-deep);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.panel-card h3 .step-no{width:22px;height:22px;border-radius:50%;background:var(--brand);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center}
.pay-options{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.pay-option{border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;cursor:pointer;display:flex;gap:10px;align-items:center}
.pay-option.active{border-color:var(--brand);background:var(--brand-soft)}
.pay-option .po-radio{width:16px;height:16px;border-radius:50%;border:2px solid #C6D2E2}
.pay-option.active .po-radio{border-color:var(--brand)}
.pay-option.active .po-radio::after{content:"";display:block;width:8px;height:8px;border-radius:50%;background:var(--brand);margin:2px}
.pay-option b{font-size:14px}
.pay-option p{font-size:12px;color:var(--muted)}
.order-summary .os-row{display:flex;justify-content:space-between;font-size:14px;margin:7px 0}
.order-summary .os-row.total{border-top:1px dashed var(--line);margin-top:12px;padding-top:12px;font-weight:700}
.order-summary .os-row.total .num{color:var(--ink);font-size:22px}
.order-summary .note{font-size:12px;color:var(--muted);background:#F7F9FC;border-radius:8px;padding:10px;margin-top:12px}

/* ---------- 订单列表 ---------- */
.order-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:14px}
.order-card .o-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:10px;border-bottom:1px solid var(--line-soft);font-size:13px;color:var(--muted)}
.order-card .o-head .o-no{color:var(--brand);font-weight:600}
.order-card .o-status{color:var(--ok);font-weight:600}
.order-card .o-status.warn{color:var(--accent)}
.order-card .o-item{display:flex;align-items:center;gap:12px;padding:10px 0}
.order-card .o-item img{width:56px;height:56px;object-fit:contain;background:#fff;border-radius:8px;padding:4px}
.order-card .o-item .oi-name{flex:1;font-size:14px}
.order-card .o-item .oi-qty{color:var(--muted);font-size:13px}
.order-card .o-item .oi-price{font-weight:600;color:var(--ink)}
.order-card .o-foot{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;justify-content:flex-end;padding-top:10px;border-top:1px solid var(--line-soft)}
.order-card .o-amount{font-size:14px;margin-left:auto}
.order-card .o-amount b{color:var(--ink);font-size:17px}
.order-card .o-fee{color:var(--muted)}
.order-card .o-fee b{color:#22303F;font-size:13.5px}
.order-card .o-fee small{color:#66788E;font-size:11px}

/* ---------- 悬浮窗（PC 右侧 / 移动端底部磁吸） ---------- */
.float-nav{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:160;display:flex;flex-direction:column;gap:10px}
.float-nav .fn-btn{position:relative;width:52px;height:52px;border-radius:12px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;font-size:19px;color:var(--brand-deep);cursor:pointer;transition:.2s}
.float-nav .fn-btn:hover{border-color:var(--brand)}
.float-nav .fn-btn small{font-size:10px;line-height:1.1;color:var(--muted);font-weight:600}
.float-nav .fn-btn .badge{position:absolute;top:-5px;right:-5px;background:var(--danger);color:#fff;font-size:11px;min-width:17px;height:17px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px;font-weight:600}
.float-nav .fn-top{background:var(--brand-deep);color:#fff}
.float-nav .fn-top small{color:#C6D2E2}
.float-nav .fn-pop{position:absolute;right:calc(100% + 14px);top:50%;transform:translateY(-50%);background:var(--white);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:14px 18px;display:none;align-items:center;gap:12px;white-space:nowrap;z-index:2}
.float-nav .fn-btn:hover .fn-pop{display:flex}
.float-nav .fn-btn.open .fn-pop{display:flex}
.fn-pop .fp-num{font-size:17px;font-weight:800;color:var(--brand-deep)}
.fn-pop .fp-num small{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:2px}
.fn-pop .fp-qr{text-align:center}
.fn-pop .fp-qr img{width:150px;height:150px;border-radius:8px;background:#F5F9FF;border:1px solid var(--line)}
.fn-pop .fp-qr p{font-size:12px;color:var(--muted);margin-top:6px}
.fn-pop .fp-qr b{color:var(--brand-deep)}

/* ---------- 页脚（深蓝渐变 + 服务条 + 四栏 + 认证） ---------- */
.site-footer{background:linear-gradient(180deg,#14367F 0%,#0E2F6E 40%,#0A2456 100%);color:#A9BCDC;margin-top:50px;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--brand);z-index:1}

.footer-svc{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:34px 20px 6px;position:relative;z-index:1}
.footer-svc .sv{background:transparent;border:none;padding:12px 6px;display:flex;gap:13px;align-items:center;transition:.25s}
.footer-svc .sv:hover .ic{background:var(--brand-dark)}
.footer-svc .sv .ic{width:42px;height:42px;border-radius:10px;background:var(--brand);display:flex;align-items:center;justify-content:center;font-size:20px;flex:0 0 auto}
.footer-svc .sv b{font-size:14.5px;color:#fff;display:block}
.footer-svc .sv span{font-size:12px;color:#8CA3C8}
.footer-main{display:grid;grid-template-columns:1.5fr repeat(4,1fr) 1.15fr;gap:30px;padding:48px 20px 40px;position:relative;z-index:1}
.f-contact-col a{display:block;padding:7px 0;font-size:13.5px;color:#B9CBEB;transition:.2s}
.f-contact-col a:hover{color:#9CC0FF}
.f-contact-col .f-qr{margin-top:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:12px}
.f-contact-col .f-qr img{width:88px;height:88px;border-radius:8px}
.f-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;position:relative;padding-left:14px;letter-spacing:.5px}
.f-col h4::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:2px;background:var(--brand)}
.f-col a{display:block;color:#A9BCDC;font-size:13.5px;padding:5.5px 0;transition:.2s}
.f-col a:hover{color:#9CC0FF}
.f-brand p{font-size:13px;line-height:2.05;margin-top:14px;color:#9DB2D4}
.f-logo{display:flex;align-items:center;gap:14px}
.f-logo .logo-mark{height:58px;width:auto}
.f-logo .logo-txt{display:flex;flex-direction:column;align-items:center;line-height:1.15}
.f-logo .logo-txt b{font-size:19px;font-weight:800;color:#fff;letter-spacing:3.5px;font-family:Arial,'Helvetica Neue',sans-serif}
.f-logo .logo-txt i{font-style:normal;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.92);letter-spacing:8px;margin-top:3px;text-indent:8px}
.f-contact{margin-top:14px;display:flex;flex-direction:column;gap:6px}
.f-contact a{color:#E6EEFB;font-size:13.5px}
.f-contact a:hover{color:#9CC0FF;padding-left:0}
.f-qr{margin-top:16px;display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:10px 14px;width:fit-content}
.f-qr img{width:64px;height:64px;border-radius:8px;background:#fff;padding:3px}
.f-qr span{font-size:12px;line-height:1.7;color:#A9BCDC}
.f-badges{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.f-badges span{font-size:11px;font-weight:600;letter-spacing:.5px;color:#C9D8F2;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:4px 12px}
.footer-links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px 10px;padding:14px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:12.5px;color:#8CA3C8;position:relative;z-index:1;line-height:1.9}
.footer-links .fl-t{color:#8CA3C8;font-weight:600}
.footer-links a{color:#C3D3EA;text-decoration:none;transition:color .2s}
.footer-links a:hover{color:#9CC0FF}
.footer-links>span{color:#6E87AC}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:12.5px;color:#7E93B8;position:relative;z-index:1}
.footer-bottom-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:0 20px}
.footer-bottom-inner .fb-admin{color:#8CA3C8;text-decoration:none;font-size:12.5px;transition:.2s}
.footer-bottom-inner .fb-admin:hover{color:#9CC0FF}
.fb-slogan{color:#93AACD;letter-spacing:.6px}

/* ---------- 提示 ---------- */
.toast{position:fixed;top:80px;left:50%;transform:translateX(-50%);background:#22303F;color:#fff;padding:12px 24px;border-radius:10px;font-size:14px;z-index:300;box-shadow:var(--shadow-lg);opacity:0;transition:.3s;pointer-events:none}
.toast.show{opacity:1}
.toast.ok{background:var(--ok)}
.toast.err{background:var(--danger)}
.empty-state{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-state .icon{font-size:48px;margin-bottom:12px}
.empty-state h3{font-size:17px;color:var(--ink);margin-bottom:6px}
.empty-state p{font-size:13.5px}

/* ---------- 移动端 ---------- */
.nav-toggle{display:none}
/* ---------- 移动端抽屉菜单（PC 隐藏） ---------- */
.m-menu{display:none}
.nav-toggle.active{background:#fff;color:#14439A;border-color:#fff}
@media(max-width:1400px){.footer-main{grid-template-columns:1.3fr repeat(4,1fr) 1.05fr;gap:20px}}@media(max-width:1200px){.footer-main{grid-template-columns:1fr 1fr;gap:26px 24px}.footer-main .f-brand,.footer-main .f-contact-col{grid-column:1/-1}.footer-main .f-col h4{margin-bottom:8px}.footer-main .f-col a{padding:4px 0}}
@media(max-width:900px){
  body{padding-bottom:66px} /* 给底部磁吸悬浮窗让位，不遮挡主体 */
  .footer-svc{grid-template-columns:repeat(2,1fr);padding:20px 20px 0}
  .main-nav{display:none}
  .m-menu{display:block;position:absolute;top:100%;left:0;right:0;z-index:90;background:#fff;box-shadow:0 16px 34px rgba(6,22,48,.22);max-height:72vh;overflow-y:auto;padding:8px 0;transform:translateY(-10px);opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease}
  .m-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .m-menu>a{display:block;padding:12px 22px;font-size:15px;font-weight:500;color:var(--ink);border-bottom:1px solid #E3E8F0}
  .m-menu>a:active{background:var(--brand-soft)}
  .m-menu .m-group{padding:12px 22px 5px;font-size:12px;font-weight:700;color:var(--brand-deep);background:#F5F9FF;letter-spacing:1px}
  /* 一级分类折叠 */
  .m-cat{border-bottom:1px solid #E3E8F0}
  .m-cat-head{display:flex;align-items:center;justify-content:space-between;width:100%;padding:12px 22px;font-size:15px;font-weight:600;color:var(--brand-deep);background:#F5F9FF;border:none;cursor:pointer;text-align:left}
  .m-cat-head .m-arrow{transition:transform .2s;font-size:12px;color:var(--brand)}
  .m-cat.open .m-cat-head .m-arrow{transform:rotate(180deg)}
  .m-cat-body{display:none}
  .m-cat.open .m-cat-body{display:block}
  .m-cat-body a{display:block;padding:10px 22px 10px 32px;font-size:14px;color:#66788E;border-bottom:1px solid #F7F9FC}
  .m-cat-body a:last-child{border-bottom:none}
  .m-cat-body a:active{background:var(--brand-soft)}
  .nav-toggle{display:flex}
  .dim-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:1fr}
  .ind-img{width:38%}
  .ind-body{padding:12px 14px}
  .ind-desc{display:none}
  .showoff-grid{grid-template-columns:1fr;gap:12px}
  .hot6{grid-template-columns:repeat(2,1fr);gap:10px}
  .list-layout{grid-template-columns:1fr}
  .facet-panel{position:static}
  .detail-layout{grid-template-columns:1fr}
  .cart-layout,.checkout-layout{grid-template-columns:1fr}
  /* 防 grid 子项被内容固有宽撑开（图片/输入框/表格），避免移动端横向溢出 */
  .detail-layout>*,.cart-layout>*,.checkout-layout>*{min-width:0}
  .gallery,.buy-panel,.panel-card,.form-item{min-width:0}
  .form-item input,.form-item select,.form-item textarea{min-width:0}
  .cart-head{display:none}
  .cart-row{grid-template-columns:70px 1fr auto;grid-template-areas:"img name rm" "img qty price"}
  .cart-row .c-img{grid-area:img}
  .cart-row .c-name{grid-area:name}
  .cart-row .c-rm{grid-area:rm}
  .cart-row .c-qty{grid-area:qty}
  .cart-row .c-price{grid-area:price}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding:26px 12px 22px}
  .footer-links{display:none}
  .header-main{gap:8px;height:64px;display:flex}
  .hdr-search-zone{max-width:100%;margin:0}
  .hdr-hot{display:none}
  .hdr-search-zone .search-box input{height:38px;font-size:13.5px}
  .hdr-search-zone .search-box button{width:58px;height:38px;font-size:14px}
  .logo .logo-mark{height:34px}
  .logo-txt{display:none}
  .logo-txt{display:none}
  .header-actions .btn{display:none}
  .header-actions .icon-btn{width:38px;height:38px}
  /* 详情页移动端 */
  .buy-panel h1{font-size:18px}
  .action-row .btn{min-width:0;flex:1;padding:0 8px;font-size:13.5px}
  .tab-nav{overflow-x:auto;white-space:nowrap}
  .tab-nav button{padding:10px 14px;font-size:14px}
  /* 规格表移动端横向滚动 */
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .table-scroll .spec-table{min-width:480px}
  /* 移动端主图：隐藏放大镜图标，触屏无悬停放大 */
  .main-img .zoom-ico{display:none}
  .gallery .main-img img{cursor:default}
  /* 结算支付选项移动端单列 */
  .pay-options{grid-template-columns:1fr}
  /* 悬浮窗：底部磁吸横排 */
  .float-nav{left:0;right:0;top:auto;bottom:0;transform:none;width:100vw;max-width:100vw;flex-direction:row;justify-content:space-around;gap:0;background:rgba(255,255,255,.97);border-top:1px solid var(--line);padding:5px 2px calc(5px + env(safe-area-inset-bottom));box-shadow:0 -2px 12px rgba(20,50,110,.08)}
  .float-nav .fn-btn{width:auto;flex:1;max-width:90px;height:52px;border:none;border-radius:0;background:none;box-shadow:none;flex-direction:column}
  .float-nav .fn-btn:hover{transform:none}
  .float-nav .fn-top{background:none;color:var(--brand-deep)}
  .float-nav .fn-top small{color:var(--muted)}
  /* 弹层改为向上弹出 */
  .float-nav .fn-pop{top:auto;bottom:calc(100% + 14px);right:50%;left:auto;transform:translateX(50%);white-space:normal}
  .float-nav .fn-pop .fp-qr img{width:140px;height:140px}
}
@media(max-width:560px){
  .dim-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .tab-pane .prod-grid{grid-template-columns:repeat(2,1fr)}
  .banner .slide img{height:190px}
  .topbar .tb-contact .hide-m{display:none}
  .topbar-inner{height:30px;font-size:12px}
  .site-header::before{background:linear-gradient(180deg,rgba(12,44,88,.50) 0%,rgba(12,44,88,.58) 100%)}
  .footer-main{grid-template-columns:1fr 1fr;gap:22px 14px}
  .footer-main .f-brand,.footer-main .f-contact-col{grid-column:1/-1}
  .footer-bottom-inner{flex-direction:column;align-items:center;text-align:center;gap:4px}
  .section-head h2{font-size:17px}
  .dim-card{padding:14px}
  .list-main{padding:12px}
  .buy-panel{padding:16px}
  .tab-panel{padding:14px}
  .checkout-layout,.cart-layout{margin:12px 0}
}

/* ---------- 在线计算器 ---------- */
.calc-page{padding-top:26px;padding-bottom:40px}
.calc-hero{background:linear-gradient(120deg,var(--brand) 0%,var(--brand-deep) 100%);border-radius:18px;color:#fff;padding:34px 36px;margin-bottom:22px}
.calc-hero h1{font-size:28px;margin-bottom:10px}
.calc-hero p{font-size:14px;color:#C6D2E2;line-height:1.9;max-width:900px}
.calc-index{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:30px}
.ci-card{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;transition:.2s}
.ci-card:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.ci-card .ci-no{font-size:13px;font-weight:700;color:var(--brand);background:var(--brand-soft);border-radius:8px;padding:4px 7px;flex:0 0 auto}
.ci-card b{display:block;font-size:13.5px;color:var(--ink)}
.ci-card small{font-size:11px;color:var(--muted)}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.calc-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-sm)}
.cc-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.cc-no{font-size:12px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-deep));border-radius:8px;padding:3px 8px;flex:0 0 auto}
.cc-head h2{font-size:17px;color:var(--ink)}
.cc-desc{font-size:12.5px;color:var(--muted);margin-bottom:14px}
.cc-form{display:flex;flex-direction:column;gap:12px}
.cc-form label{font-size:13px;color:#66788E;display:flex;flex-direction:column;gap:6px}
.cc-form input,.cc-form select{height:40px;border:1px solid var(--line);border-radius:10px;padding:0 12px;font-size:14px;background:#F5F9FF;outline:none;transition:.2s}
.cc-form input:focus,.cc-form select:focus{border-color:var(--brand);background:#fff}
.cc-form .btn{margin-top:2px}
.calc-result{background:#F5F9FF;border:1px dashed #E3E8F0;border-radius:12px;padding:14px 16px;margin-top:14px;font-size:13.5px;line-height:2;color:#22303F;min-height:46px}
.calc-result .r-hi{font-size:14.5px;font-weight:700;color:var(--brand-deep);margin-bottom:4px}
.calc-result .r-num{font-size:20px;font-weight:800;color:#D0342C;margin:0 3px}
.cc-formula{background:#F5F9FF;border-radius:10px;padding:10px 14px;margin-top:12px;font-size:12px;color:#66788E;line-height:1.8}
.cc-formula b{color:var(--brand);margin-right:6px}
.calc-card{scroll-margin-top:96px}
.calc-foot{margin-top:26px;background:#F5F9FF;border:1px solid #E3E8F0;border-radius:14px;padding:18px 22px;font-size:13px;line-height:2;color:#66788E}
.calc-foot a{color:var(--brand);font-weight:600}
@media(max-width:1100px){.calc-index{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){.calc-index{grid-template-columns:repeat(2,1fr)}.calc-grid{grid-template-columns:1fr}.calc-hero{padding:24px 20px}.calc-hero h1{font-size:22px}}
@media(max-width:560px){.calc-index{grid-template-columns:1fr}}

/* ---------- 同类型号对比（全量型号 · Excel 式列头多维筛选） ---------- */
.compare-sec{margin-top:34px}
.cmp-toolbar{display:flex;align-items:center;gap:14px;margin-bottom:10px;flex-wrap:wrap}
.cmp-count{font-size:13px;color:var(--muted)}
.cmp-count b{color:var(--brand);font-weight:700;font-size:14px}
.flt-reset{border:1px solid #F5C6C6;background:#FEF2F2;color:#D0342C;border-radius:8px;padding:4px 12px;font-size:12.5px;cursor:pointer}
.flt-reset:hover{background:#FBE0E0}
.cmp-hint{font-size:12px;color:#66788E;margin-left:auto}
.cmp-wrap{overflow:auto;max-height:66vh;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:var(--shadow-sm)}
.cmp-wrap.cmp-open{max-height:none}   /* 默认展示前N行时全部直接可见（列表页对比表） */
.cmp-table{min-width:100%}
.cmp-row{display:grid;grid-template-columns:170px repeat(var(--cmp-cols,12),minmax(96px,1fr));border-bottom:1px solid #E3E8F0}
.cmp-row:last-child{border-bottom:0}
.cmp-cell{padding:9px 10px;font-size:12.5px;color:#22303F;border-left:1px solid #E3E8F0;display:flex;align-items:center;justify-content:center;text-align:center;min-height:20px;min-width:0;box-sizing:border-box}
.cmp-row .cmp-cell:first-child{border-left:0}
.cmp-head .cmp-cell{background:linear-gradient(180deg,#F5F9FF,#EAF1FE);font-weight:700;color:#0E2F6E;border-bottom:2px solid #E3E8F0;font-size:12px;cursor:pointer;gap:4px;user-select:none;transition:.15s}
.cmp-head .cmp-cell:hover{background:#EAF1FE;color:var(--brand)}
.cmp-head{position:sticky;top:0;z-index:5}
.cmp-row:nth-child(even) .cmp-cell{background:#F5F9FF}
.cmp-first{position:sticky;left:0;z-index:4;background:#fff;justify-content:flex-start;gap:6px;flex-direction:column;font-weight:600;color:#0E2F6E;border-right:1px solid var(--line)}
.cmp-head .cmp-first{background:linear-gradient(180deg,#F5F9FF,#EAF1FE);z-index:6;justify-content:center}
.cmp-row:nth-child(even) .cmp-first{background:#F5F9FF}
.cmp-row.cur{outline:2px solid var(--brand);outline-offset:-2px}
.cmp-row.cur .cmp-first{background:#EAF1FE}
.cmp-first img{width:44px;height:44px;object-fit:contain;background:#fff;border-radius:8px;border:1px solid var(--line-soft)}
.cmp-first .cp-name a{color:#0E2F6E;font-weight:600;text-decoration:none;font-size:12px;line-height:1.4;text-align:center}
.cmp-first .cp-name a:hover{color:var(--brand)}
.cmp-first .cp-price{color:#D63031;font-weight:700;font-size:13px}
/* 对比表：每行加入购物车 */
.cmp-first .cp-cart{display:flex;align-items:center;gap:6px;margin-top:4px;width:100%}
.cmp-first .cp-qty{display:flex;align-items:center;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff}
.cmp-first .cp-qty button{width:20px;height:22px;border:0;background:#F5F9FF;color:#66788E;font-size:13px;cursor:pointer;line-height:1}
.cmp-first .cp-qty button:hover{background:var(--brand);color:#fff}
.cmp-first .cp-qty input{width:26px;height:22px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);text-align:center;font-size:12px;outline:none;padding:0}
.cmp-first .cmp-add{flex:1;min-width:0;height:24px;border:0;border-radius:6px;background:var(--brand);color:#fff;font-size:11.5px;cursor:pointer;white-space:nowrap;padding:0 6px}
.cmp-first .cmp-add:hover{background:var(--brand-deep)}
.cmp-first .cmp-add.added{background:#27AE60}
.cmp-empty{text-align:center;padding:30px;color:var(--muted);font-size:13px}
.cmp-more{display:flex;justify-content:center;padding:12px 0;border-top:1px solid var(--line);background:#F5F9FF;position:sticky;left:0}
.cmp-more button{border:1px solid var(--brand);background:#fff;color:var(--brand);border-radius:8px;padding:8px 26px;font-size:13px;font-weight:600;cursor:pointer;transition:.2s}
.cmp-more button:hover{background:var(--brand);color:#fff}
/* 列头筛选图标 */
.flt-ico{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:4px;background:#E3E8F0;color:#66788E;font-size:10px;line-height:1}
.cmp-head .cmp-cell:hover .flt-ico{background:var(--brand);color:#fff}
.flt-ico.on{background:var(--brand);color:#fff}
/* 筛选面板（Excel 式） */
.flt-panel{position:fixed;z-index:1200;width:264px;background:#fff;border:1px solid #E3E8F0;border-radius:12px;box-shadow:0 10px 32px rgba(15,40,90,.18);padding:10px;font-size:13px}
.flt-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.flt-head b{color:#0E2F6E;font-size:13.5px}
.flt-close{border:0;background:#EAF1FE;border-radius:6px;width:24px;height:24px;cursor:pointer;color:#66788E;font-size:12px}
.flt-close:hover{background:#E3E8F0}
.flt-search{width:100%;box-sizing:border-box;height:34px;border:1px solid var(--line);border-radius:8px;padding:0 10px;font-size:12.5px;outline:none;margin-bottom:8px}
.flt-search:focus{border-color:var(--brand)}
.flt-actions{display:flex;align-items:center;gap:10px;margin-bottom:8px;color:#66788E;font-size:12.5px}
.flt-all-lb{display:flex;align-items:center;gap:5px;cursor:pointer}
.flt-clear-all{border:0;background:none;color:var(--brand);cursor:pointer;font-size:12.5px;padding:0}
.flt-n{margin-left:auto;color:#66788E;font-size:12px}
.flt-list{max-height:232px;overflow:auto;border-top:1px solid #E3E8F0;padding-top:6px}
.flt-opt{display:flex;align-items:center;gap:7px;padding:5px 6px;border-radius:6px;cursor:pointer;font-size:12.5px;color:#22303F}
.flt-opt:hover{background:#F5F9FF}
.flt-opt span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.flt-opt em{font-style:normal;font-size:11px;color:#66788E}
.flt-none{padding:14px;text-align:center;color:#66788E;font-size:12.5px}
/* 对比表移动端：首列收窄、属性列压缩 */
@media(max-width:900px){
  .cmp-row{grid-template-columns:128px repeat(var(--cmp-cols,12),minmax(88px,1fr))}
  .cmp-cell{padding:8px 8px;font-size:12px}
  .cmp-hint{display:none}
  .cmp-wrap{max-height:60vh}
}


/* ---------- 产品详情页 · 工程信息外置块 ---------- */
.eng-extras{margin:26px 0}
.ek-sec{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px}
.ek-sec h3{font-size:15.5px;font-weight:700;color:var(--brand-deep);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.ek-sec h3::before{content:"";width:4px;height:16px;background:var(--brand);border-radius:2px}
.ek-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.ek-card{display:flex;gap:12px;background:#F7F9FC;border:1px solid #E3E8F0;border-radius:10px;padding:12px 14px}
.ek-card .ek-ic{width:38px;height:38px;border-radius:9px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;font-size:18px;flex:0 0 auto}
.ek-card b{font-size:13.5px;color:var(--brand-deep);display:block;margin-bottom:3px}
.ek-card p{font-size:12.5px;color:#66788E;line-height:1.7;margin:0}
.ek-links{display:flex;flex-wrap:wrap;gap:10px}
.ek-links a{display:inline-flex;align-items:center;gap:6px;background:#F7F9FC;border:1px solid #E3E8F0;border-radius:20px;padding:8px 16px;font-size:13px;color:#14439A;transition:.2s}
.ek-links a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
@media(max-width:600px){.ek-grid{grid-template-columns:1fr}}


/* ---------- 列表页 · 子分类矩阵（McMaster 分类页目录体验） ---------- */
.subcat-matrix{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:12px 0}
.subcat-matrix .sm-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.subcat-matrix .sm-head b{font-size:16px;color:var(--brand-deep)}
.subcat-matrix .sm-all{font-size:13px;color:var(--brand)}
.subcat-matrix .sm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.subcat-matrix .sm-item{display:flex;flex-direction:column;align-items:center;gap:8px;background:#F5F9FF;border:1px solid #E3E8F0;border-radius:12px;padding:14px 10px 12px;transition:.22s;text-align:center}
.subcat-matrix .sm-item:hover{border-color:var(--brand);background:var(--brand-soft)}
.subcat-matrix .sm-img{width:64px;height:64px;border-radius:10px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.subcat-matrix .sm-img img{max-width:100%;max-height:100%;object-fit:contain}
.subcat-matrix .sm-name{font-size:13.5px;font-weight:600;color:var(--ink)}
.subcat-matrix .sm-cnt{font-size:12px;color:var(--muted)}
@media(max-width:520px){.subcat-matrix .sm-grid{grid-template-columns:repeat(3,1fr)}}

/* ===== 线描图标基础样式 ===== */
.ico{display:inline-block;vertical-align:-0.18em;flex:0 0 auto;line-height:0}
.icon .ico{display:block;margin:0 auto}
.ci-ic .ico,.d-name .ico,.tcc-ic .ico,.v-ic .ico,.b-ic .ico,.p-ic .ico,.s-ic .ico,.c-ic .ico,.ek-ic .ico,.ip-cover .ico{color:var(--brand)}
.equip-tags span .ico{color:var(--brand);vertical-align:-0.25em}
.tc-cover .ico{color:var(--brand)}
.art-calc .ico{vertical-align:-0.2em}
.a-meta .ico{color:var(--muted)}

/* ---------- 四维导航·目录组件（公共：首页左栏 / 头部浏览全部目录浮层复用） ---------- */
.nav4-sec{border-bottom:1px solid var(--line-soft);padding:9px 0 7px}
.nav4-sec:last-child{border-bottom:none;padding-bottom:0}
.nav4-sec-head{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.nav4-sec-head .ns-ic{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;color:#fff;flex:none}
.nav4-sec-head b{font-size:14.5px;font-weight:700;color:var(--brand-deep);flex:1}
.nav4-sec-head .ns-more{font-size:12px;color:var(--muted);text-decoration:none}
.nav4-sec-head .ns-more:hover{color:var(--brand)}
.nav4-links{display:grid;grid-template-columns:1fr 1fr;gap:2px 8px}
.nav4-link{display:flex;justify-content:space-between;align-items:center;gap:6px;padding:4px 8px;border-radius:7px;font-size:13px;color:#22303F;text-decoration:none;transition:background .15s}
.nav4-link:hover{background:var(--brand-soft);color:var(--brand)}
.nav4-link .nl-name{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav4-link .nl-cnt{flex:none;font-size:11px;color:var(--muted);background:#F5F9FF;border-radius:9px;padding:0 7px}
.nav4-sec.s1 .ns-ic{background:#1B57C4}
.nav4-sec.s2 .ns-ic{background:#1B57C4}
.nav4-sec.s3 .ns-ic{background:#14439A}
.nav4-sec.s4 .ns-ic{background:#0E2F6E}


/* ---------- 技术选型 · 左右结构（列表页/文章页共用） ---------- */
.tech-layout{display:grid;grid-template-columns:260px 1fr;gap:18px;margin:18px 0;align-items:start}
.tech-main{min-width:0}
.tech-side{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:14px 12px;position:sticky;top:76px}
.tech-side .ts-title{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.5px;padding:0 8px 10px;border-bottom:1px solid var(--line-soft);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.tech-side .ts-cats{display:flex;flex-direction:column}
.tech-side .ts-cat{display:flex;align-items:center;gap:8px;padding:9px 8px;border-radius:8px;font-size:13.5px;color:var(--ink);cursor:pointer;border-left:2px solid transparent;text-decoration:none}
.tech-side .ts-cat:hover{background:var(--brand-soft)}
.tech-side .ts-cat.active{background:var(--brand-soft);color:var(--brand);font-weight:600;border-left-color:var(--brand)}
.tech-side .ts-cat .cnt{margin-left:auto;color:var(--muted);font-size:12px;font-weight:400;font-style:normal}
.tech-intro{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:24px 28px;margin-bottom:16px}
.tech-intro h1{font-size:22px;color:var(--brand-deep);margin-bottom:8px}
.tech-intro p{font-size:13.5px;color:#66788E;line-height:1.9;max-width:1200px;margin:0}
@media(max-width:900px){.tech-layout{grid-template-columns:1fr}.tech-side{position:static}.tech-side .ts-cats{flex-direction:row;flex-wrap:wrap;gap:6px}.tech-side .ts-cat{padding:7px 12px;border-left:none}}