/* =====================================================================
   BioReagent 基础样式层 —— 变量 / 重置 / 通用组件
   配色：医疗蓝 + 科研青绿，国际化生物医疗视觉
   ===================================================================== */
:root{
  --c-primary:#0f88c4;
  --c-primary-d:#0a6c9e;
  --c-primary-l:#e5f4fc;
  --c-teal:#12b5a4;
  --c-teal-l:#e3f8f5;
  --c-deep:#0b3b56;
  --c-ink:#1e3346;
  --c-ink-2:#4a6377;
  --c-ink-3:#7d95a8;
  --c-line:#e2edf5;
  --c-line-2:#eef5fa;
  --c-bg:#f4f9fc;
  --c-white:#fff;
  --c-warn:#f59e0b;
  --c-danger:#e5484d;
  --c-ok:#12b5a4;
  --r-sm:6px; --r:10px; --r-lg:14px; --r-xl:20px;
  --sh-1:0 1px 3px rgba(16,63,89,.06);
  --sh-2:0 4px 16px rgba(16,63,89,.08);
  --sh-3:0 10px 34px rgba(16,63,89,.12);
  --fs:14px;
  --max-w:1240px;
  --sp:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-size:var(--fs);line-height:1.65;color:var(--c-ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--c-bg);
}
h1,h2,h3,h4,h5{margin:0 0 .6em;font-weight:600;line-height:1.35;color:var(--c-deep)}
h1{font-size:26px}h2{font-size:22px}h3{font-size:17px}h4{font-size:15px}
p{margin:0 0 1em}
a{color:var(--c-primary);text-decoration:none;transition:color .18s}
a:hover{color:var(--c-primary-d)}
img{max-width:100%;border:0;vertical-align:middle}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
input,select,textarea,button{font-family:inherit;font-size:14px}
input[type=text],input[type=password],input[type=email],input[type=number],input[type=tel],input[type=search],select,textarea{
  width:100%;padding:9px 12px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;color:var(--c-ink);outline:none;transition:border-color .18s,box-shadow .18s;
}
input:focus,select:focus,textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,136,196,.12)}
textarea{resize:vertical;min-height:96px}
label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:5px}
button{cursor:pointer}
.wrap{max-width:var(--max-w);margin:0 auto;padding:0 16px;width:100%}
.hide{display:none!important}
.clearfix::after{content:"";display:table;clear:both}
.tc{text-align:center}.tr{text-align:right}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.f12{font-size:12px}.f13{font-size:13px}.f16{font-size:16px}
.c-gray{color:var(--c-ink-3)}.c-primary{color:var(--c-primary)}.c-teal{color:var(--c-teal)}.c-danger{color:var(--c-danger)}
.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ellipsis2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ellipsis3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 20px;border:1px solid var(--c-primary);background:var(--c-primary);color:#fff;
  border-radius:var(--r-sm);font-size:14px;line-height:1.2;cursor:pointer;transition:all .18s;
}
.btn:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff}
.btn-lg{padding:12px 30px;font-size:15px;border-radius:var(--r)}
.btn-sm{padding:6px 13px;font-size:13px}
.btn-block{display:flex;width:100%}
.btn-ghost{background:#fff;color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.btn-teal{background:var(--c-teal);border-color:var(--c-teal)}
.btn-teal:hover{background:#0e9c8e;border-color:#0e9c8e}
.btn-warn{background:var(--c-warn);border-color:var(--c-warn)}
.btn-warn:hover{background:#d98a06;border-color:#d98a06}
.btn-danger{background:var(--c-danger);border-color:var(--c-danger)}
.btn-danger:hover{background:#cc3b40;border-color:#cc3b40}
.btn-gray{background:#fff;border-color:var(--c-line);color:var(--c-ink-2)}
.btn-gray:hover{background:var(--c-line-2);color:var(--c-ink)}
.btn[disabled],.btn.disabled{opacity:.55;cursor:not-allowed;pointer-events:none}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}

/* ---------------- 卡片 / 区块 ---------------- */
.card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);box-shadow:var(--sh-1)}
.card-pad{padding:20px}
.panel{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);margin-bottom:var(--sp);overflow:hidden}
.panel-hd{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 18px;border-bottom:1px solid var(--c-line-2);background:linear-gradient(180deg,#fbfdff,#f6fbfe);
}
.panel-hd h2,.panel-hd h3{margin:0;font-size:16px;display:flex;align-items:center;gap:8px}
.panel-hd h2::before,.panel-hd h3::before{content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--c-primary),var(--c-teal))}
.panel-bd{padding:18px}
.panel-more{font-size:13px;color:var(--c-ink-3)}
.panel-more:hover{color:var(--c-primary)}

/* 区块标题（首页通用） */
.sec-title{display:flex;align-items:flex-end;justify-content:space-between;margin:0 0 16px;gap:14px;flex-wrap:wrap}
.sec-title h2{margin:0;font-size:21px;position:relative;padding-left:14px}
.sec-title h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--c-primary),var(--c-teal))}
.sec-title p{margin:2px 0 0 14px;color:var(--c-ink-3);font-size:13px}

/* ---------------- 徽标 / 标签 ---------------- */
.badge{display:inline-block;padding:1px 7px;border-radius:4px;font-size:12px;line-height:18px;background:var(--c-primary-l);color:var(--c-primary-d);white-space:nowrap}
.badge-teal{background:var(--c-teal-l);color:#0b8a7d}
.badge-warn{background:#fef3e2;color:#b87400}
.badge-danger{background:#fdecec;color:#c93b40}
.badge-gray{background:var(--c-line-2);color:var(--c-ink-2)}
.tag{display:inline-block;padding:2px 9px;background:var(--c-line-2);border-radius:12px;font-size:12px;color:var(--c-ink-2);margin:0 5px 5px 0}
.tag:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.corner-top{position:absolute;top:0;left:0;background:var(--c-danger);color:#fff;font-size:11px;padding:1px 8px;border-radius:0 0 8px 0}

/* ---------------- 表单网格 ---------------- */
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-grid.col3{grid-template-columns:repeat(3,minmax(0,1fr))}
.form-grid .full{grid-column:1/-1}
.form-item{margin-bottom:0}
.form-item .req{color:var(--c-danger);margin-left:3px}
.form-tip{font-size:12px;color:var(--c-ink-3);margin-top:4px}
.form-actions{margin-top:22px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}

/* ---------------- 消息条 ---------------- */
.alert{padding:11px 15px;border-radius:var(--r-sm);margin-bottom:16px;font-size:13.5px;border:1px solid transparent}
.alert-info{background:var(--c-primary-l);border-color:#c8e6f7;color:#0a5c86}
.alert-ok{background:var(--c-teal-l);border-color:#bfeae4;color:#0a7568}
.alert-warn{background:#fef6e7;border-color:#f9e3b6;color:#95610a}
.alert-danger{background:#fdeeee;border-color:#f8d0d1;color:#b8333a}

/* ---------------- 空态 ---------------- */
.empty{padding:52px 20px;text-align:center;color:var(--c-ink-3)}
.empty .ico{font-size:40px;opacity:.35;margin-bottom:10px;display:block}
.empty p{margin:0 0 16px}

/* ---------------- 面包屑 ---------------- */
.crumb{font-size:13px;color:var(--c-ink-3);padding:14px 0;display:flex;align-items:center;flex-wrap:wrap;gap:4px}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{font-style:normal;color:#c3d6e3;margin:0 4px}
.crumb span{color:var(--c-ink-3)}

/* ---------------- 分页 ---------------- */
.pager{display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:center;padding:24px 0 6px}
.pager .pg-total{color:var(--c-ink-3);font-size:13px;margin-right:8px}
.pager .pg{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:34px;padding:0 10px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;color:var(--c-ink-2);font-size:13.5px}
.pager .pg:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pager .pg.current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.pager .pg-dot{color:var(--c-ink-3)}

/* ---------------- 表格 ---------------- */
.tb{width:100%;font-size:13.5px}
.tb th{background:var(--c-line-2);color:var(--c-ink-2);font-weight:600;text-align:left;padding:11px 12px;border-bottom:1px solid var(--c-line);white-space:nowrap}
.tb td{padding:11px 12px;border-bottom:1px solid var(--c-line-2);vertical-align:middle}
.tb tr:hover td{background:#fafdff}
.tb-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------------- 参数表 ---------------- */
.param-tb{font-size:13.5px}
.param-tb th,.param-tb td{border:1px solid var(--c-line);padding:9px 13px}
.param-tb th{background:var(--c-line-2);width:150px;color:var(--c-ink-2);font-weight:500;text-align:left}

/* ---------------- 弹窗 ---------------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(9,38,56,.45);z-index:9000;
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;visibility:hidden;transition:opacity .22s,visibility .22s;
}
.modal-mask.on{opacity:1;visibility:visible}
.modal{
  background:#fff;border-radius:var(--r-lg);width:100%;max-width:440px;box-shadow:var(--sh-3);
  transform:translateY(14px) scale(.97);transition:transform .24s;overflow:hidden;
}
.modal-mask.on .modal{transform:none}
.modal-hd{padding:17px 20px;border-bottom:1px solid var(--c-line-2);display:flex;align-items:center;justify-content:space-between;gap:12px}
.modal-hd h3{margin:0;font-size:16px}
.modal-close{background:none;border:0;font-size:22px;line-height:1;color:var(--c-ink-3);padding:0 2px}
.modal-close:hover{color:var(--c-danger)}
.modal-bd{padding:20px;color:var(--c-ink-2);font-size:14px;max-height:60vh;overflow:auto}
.modal-ft{padding:14px 20px;border-top:1px solid var(--c-line-2);display:flex;justify-content:flex-end;gap:10px;background:#fcfdfe;flex-wrap:wrap}

/* Toast */
.toast-box{position:fixed;top:22px;left:50%;transform:translateX(-50%);z-index:9500;display:flex;flex-direction:column;gap:9px;align-items:center;pointer-events:none;max-width:92vw}
.toast{
  background:rgba(11,59,86,.94);color:#fff;padding:11px 22px;border-radius:22px;font-size:13.5px;
  box-shadow:var(--sh-3);animation:toastIn .26s ease;max-width:100%;word-break:break-word;
}
.toast.ok{background:rgba(10,133,120,.95)}
.toast.err{background:rgba(190,52,58,.95)}
@keyframes toastIn{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:none}}

/* ---------------- 浮动工具条 ---------------- */
.float-bar{position:fixed;right:14px;bottom:80px;z-index:800;display:flex;flex-direction:column;gap:8px}
.float-bar .fb{
  width:48px;height:48px;border-radius:12px;background:#fff;border:1px solid var(--c-line);
  box-shadow:var(--sh-2);display:flex;flex-direction:column;align-items:center;justify-content:center;
  cursor:pointer;color:var(--c-ink-2);font-size:11px;gap:2px;transition:all .18s;
}
.float-bar .fb:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}
.float-bar .fb .i{font-size:17px;line-height:1}
.float-bar .fb-top{opacity:0;visibility:hidden}
.float-bar .fb-top.on{opacity:1;visibility:visible}

/* ---------------- 右下角消息提醒 ---------------- */
.notify-dock{position:fixed;right:16px;bottom:16px;z-index:860;width:330px;max-width:calc(100vw - 32px);display:flex;flex-direction:column;gap:10px}
.notify-item{
  background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-primary);
  border-radius:var(--r);box-shadow:var(--sh-3);padding:13px 15px;
  animation:notifyIn .28s ease;position:relative;
}
.notify-item .ni-top{display:flex;align-items:center;gap:7px;margin-bottom:5px}
.notify-item .ni-top strong{font-size:13.5px;color:var(--c-deep);flex:1;min-width:0}
.notify-item .ni-x{background:none;border:0;color:var(--c-ink-3);font-size:15px;line-height:1;padding:0 2px}
.notify-item .ni-x:hover{color:var(--c-danger)}
.notify-item p{margin:0;font-size:12.8px;color:var(--c-ink-2);line-height:1.55}
.notify-item a.ni-go{display:inline-block;margin-top:7px;font-size:12.5px}
.notify-item.t-inquiry{border-left-color:var(--c-primary)}
.notify-item.t-quote{border-left-color:var(--c-teal)}
.notify-item.t-order{border-left-color:var(--c-warn)}
.notify-item.t-qa{border-left-color:#a855f7}
.notify-item.t-message{border-left-color:#ef4444}
@keyframes notifyIn{from{opacity:0;transform:translateX(26px)}to{opacity:1;transform:none}}

/* ---------------- 滚动快讯 ---------------- */
.flash-bar{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r);padding:9px 15px;margin:0 0 18px;overflow:hidden;
}
.flash-bar .fb-label{
  flex:0 0 auto;display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary-d);
  padding-right:12px;border-right:1px solid var(--c-line);
}
.flash-bar .fb-label::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-danger);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}}
.flash-track{flex:1;min-width:0;overflow:hidden;height:22px;position:relative}
.flash-track ul{position:absolute;inset:0;animation:flashUp linear infinite}
.flash-track li{height:22px;line-height:22px;font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.flash-track li a{color:var(--c-ink-2)}
.flash-track li a:hover{color:var(--c-primary)}
@keyframes flashUp{from{transform:translateY(0)}to{transform:translateY(-100%)}}

/* ---------------- 广告 ---------------- */
.advert-wrap{margin:0 0 18px;text-align:center;overflow:hidden;border-radius:var(--r)}
.advert-wrap img{border-radius:var(--r);display:block;margin:0 auto}
.advert-label{font-size:11px;color:var(--c-ink-3);letter-spacing:1px;text-align:center;margin-bottom:5px}

/* ---------------- 富文本正文 ---------------- */
.article{font-size:15px;line-height:1.95;color:#26445a;word-wrap:break-word;overflow-wrap:break-word}
.article h2{font-size:21px;margin:1.7em 0 .7em;padding-left:12px;border-left:4px solid var(--c-primary)}
.article h3{font-size:17.5px;margin:1.5em 0 .6em;color:var(--c-primary-d)}
.article h4{font-size:15.5px;margin:1.3em 0 .5em}
.article p{margin:0 0 1.15em}
/* 正文图片：不超过正文栏宽度，小图保持原大不拉伸（width:auto）；
   大图自动缩到栏宽以内，避免 2000px 原图把版面撑爆 */
.article img{max-width:100%;width:auto;height:auto;border-radius:var(--r);margin:14px auto;display:block}
.article ul,.article ol{margin:0 0 1.15em;padding-left:1.6em;list-style:disc}
.article ol{list-style:decimal}
.article li{margin-bottom:.45em}
.article blockquote{margin:0 0 1.15em;padding:12px 18px;background:var(--c-line-2);border-left:4px solid var(--c-teal);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-ink-2)}
.article table{margin:0 0 1.3em;font-size:14px}
.article table th,.article table td{border:1px solid var(--c-line);padding:9px 12px}
.article table th{background:var(--c-line-2)}
.article a.inner-link{color:var(--c-primary);border-bottom:1px dashed rgba(15,136,196,.5)}
.article a.inner-link:hover{background:var(--c-primary-l)}
.article code{background:var(--c-line-2);padding:1px 6px;border-radius:4px;font-size:13px}

/* ---------------- 页面通用 ---------------- */
.page-head{background:#fff;border-bottom:1px solid var(--c-line);padding:0}
.page-head .inner{max-width:var(--max-w);margin:0 auto;padding:26px 16px 22px}
.page-head h1{margin:0 0 6px;font-size:24px}
.page-head .desc{color:var(--c-ink-3);font-size:13.5px;margin:0;max-width:900px}
.page-head .cat-links{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap}
.page-head .cat-links a{padding:5px 14px;border:1px solid var(--c-line);border-radius:16px;font-size:13px;color:var(--c-ink-2);background:#fff}
.page-head .cat-links a:hover,.page-head .cat-links a.on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* 状态色点 */
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px;vertical-align:middle}
.dot-0{background:var(--c-warn)}.dot-1{background:var(--c-primary)}.dot-2{background:var(--c-teal)}.dot-3{background:#12b5a4}.dot-4{background:var(--c-ink-3)}

/* 筛选条 */
.filter-bar{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:13px 16px;margin-bottom:16px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.filter-bar .fi{display:flex;align-items:center;gap:7px}
.filter-bar .fi label{margin:0;white-space:nowrap;font-size:13px}
.filter-bar select,.filter-bar input{min-width:130px}
.filter-bar .fi-grow{flex:1;min-width:200px}

/* 排序条 */
.sort-bar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:0 0 12px}
.sort-bar a{padding:5px 13px;border:1px solid var(--c-line);border-radius:15px;font-size:13px;color:var(--c-ink-2);background:#fff}
.sort-bar a:hover{border-color:var(--c-primary);color:var(--c-primary)}
.sort-bar a.on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.sort-bar .sp{flex:1}
.sort-bar .cnt{font-size:13px;color:var(--c-ink-3)}

/* =====================================================================
   共享组件层 —— PC / 手机端都会加载
   原先这些组件样式误放在 pc.css 里，而手机端只加载 base.css + mobile.css，
   结果手机端渲染 PC 页面片段时组件样式全部丢失（卡片/栅格/详情页/会员中心全裸）。
   设备差异（列数、间距、方向）交给 pc.css / mobile.css 各自覆盖，本层只放设备无关样式。
   ===================================================================== */
.side-panel{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);margin-bottom:18px;overflow:hidden}
.side-panel .sh{display:flex;align-items:center;justify-content:space-between;padding:12px 15px;border-bottom:1px solid var(--c-line-2);background:linear-gradient(180deg,#fbfdff,#f6fbfe)}
.side-panel .sh h3{margin:0;font-size:15px;display:flex;align-items:center;gap:7px}
.side-panel .sh h3::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--c-primary),var(--c-teal))}
.side-panel .sb{padding:12px 15px}
.side-panel .sb.tight{padding:6px 15px}

/* 侧栏小列表 */
.mini-list li{display:flex;gap:9px;padding:9px 0;border-bottom:1px dashed var(--c-line-2);line-height:1.5}
.mini-list li:last-child{border-bottom:0}
.mini-list .idx{flex:0 0 19px;height:19px;line-height:19px;text-align:center;border-radius:4px;background:var(--c-line-2);color:var(--c-ink-3);font-size:11.5px;font-weight:600;margin-top:2px}
.mini-list li:nth-child(1) .idx{background:var(--c-danger);color:#fff}
.mini-list li:nth-child(2) .idx{background:#f97316;color:#fff}
.mini-list li:nth-child(3) .idx{background:var(--c-warn);color:#fff}
.mini-list .t{flex:1;min-width:0;font-size:13.5px;color:var(--c-ink)}
.mini-list .t a{color:var(--c-ink)}
.mini-list .t a:hover{color:var(--c-primary)}
.mini-list .m{display:block;font-size:12px;color:var(--c-ink-3);margin-top:3px}
.side-thumb-list li{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed var(--c-line-2)}
.side-thumb-list li:last-child{border-bottom:0}
.side-thumb-list img{width:76px;height:57px;flex:0 0 76px;object-fit:cover;border-radius:var(--r-sm);background:var(--c-line-2)}
.side-thumb-list .t{flex:1;min-width:0;font-size:13.5px;line-height:1.5}
.cat-side-list li{border-bottom:1px dashed var(--c-line-2)}
.cat-side-list li:last-child{border-bottom:0}
.cat-side-list a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 0;font-size:13.5px;color:var(--c-ink-2)}
.cat-side-list a:hover{color:var(--c-primary);padding-left:4px}
.cat-side-list .n{color:var(--c-ink-3);font-size:12px}

/* ---------------- 产品卡片栅格 ---------------- */
.pro-grid{display:grid;gap:16px}
.pro-grid.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.pro-grid.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.pro-grid.c4{grid-template-columns:repeat(4,minmax(0,1fr))}
.pro-grid.c5{grid-template-columns:repeat(5,minmax(0,1fr))}
.pro-grid.c6{grid-template-columns:repeat(6,minmax(0,1fr))}
@media (max-width:1100px){.pro-grid.c5,.pro-grid.c6{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:900px){.pro-grid.c4,.pro-grid.c5,.pro-grid.c6{grid-template-columns:repeat(3,minmax(0,1fr))}}
.pro-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);overflow:hidden;transition:all .2s;display:flex;flex-direction:column;position:relative}
.pro-card:hover{border-color:#bfe0f0;box-shadow:var(--sh-3);transform:translateY(-3px)}
.pro-card .pic{display:block;aspect-ratio:4/3;background:#f8fbfd;overflow:hidden;position:relative}
.pro-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.pro-card:hover .pic img{transform:scale(1.05)}
.pro-card .pic .ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#c3d6e3;font-size:12px}
.pro-card .bd{padding:12px 13px 14px;display:flex;flex-direction:column;flex:1;min-width:0}
.pro-card .nm{font-size:14px;line-height:1.45;height:2.9em;overflow:hidden;margin-bottom:6px;font-weight:500;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pro-card .nm a{color:var(--c-ink)}
.pro-card .nm a:hover{color:var(--c-primary)}
.pro-card .meta{font-size:12px;color:var(--c-ink-3);line-height:1.6;margin-bottom:8px;flex:1}
.pro-card .meta span{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pro-card .bt{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-top:auto}
.pro-card .price{color:var(--c-danger);font-size:17px;font-weight:700;white-space:nowrap}
.pro-card .price small{font-size:12px;font-weight:400;color:var(--c-ink-3);margin-left:3px}
.pro-card .btns{display:flex;gap:6px}
.pro-card .btns .btn{padding:5px 11px;font-size:12.5px}
.pro-card .corner{position:absolute;top:0;right:0;display:flex;flex-direction:column;align-items:flex-end;z-index:2}
.pro-card .corner i{font-style:normal;font-size:11px;color:#fff;padding:1px 8px;border-bottom-left-radius:8px}
.pro-card .corner .top{background:var(--c-danger)}
.pro-card .corner .rec{background:var(--c-warn)}
.pro-card .corner .hot{background:#f97316}

/* ---------------- 列表项（询单/需求/资讯） ---------------- */
.item-list{display:flex;flex-direction:column;gap:14px}
.lt-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:16px 18px;transition:all .18s;position:relative}
.lt-item:hover{border-color:#bfe0f0;box-shadow:var(--sh-2)}
.lt-item .hd{display:flex;align-items:flex-start;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.lt-item .hd h3{margin:0;font-size:16px;flex:1;min-width:200px;line-height:1.5}
.lt-item .hd h3 a{color:var(--c-deep)}
.lt-item .hd h3 a:hover{color:var(--c-primary)}
.lt-item .desc{color:var(--c-ink-2);font-size:13.5px;line-height:1.7;margin:0 0 10px}
.lt-item .info{display:flex;gap:18px;flex-wrap:wrap;font-size:12.5px;color:var(--c-ink-3);border-top:1px dashed var(--c-line-2);padding-top:10px}
.lt-item .info b{color:var(--c-ink-2);font-weight:500}
.lt-item .kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px 16px;font-size:13px;color:var(--c-ink-2);margin:0 0 10px}
.lt-item .kv .k{color:var(--c-ink-3)}
.lt-item .side-st{position:absolute;right:18px;top:16px;text-align:right}
.lt-item .price-big{color:var(--c-danger);font-size:19px;font-weight:700}

/* ---------------- 资讯图文 ---------------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media (max-width:1000px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.news-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);overflow:hidden;transition:all .2s;display:flex;flex-direction:column}
.news-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px);border-color:#bfe0f0}
.news-card .pic{display:block;aspect-ratio:16/9;overflow:hidden;background:#f8fbfd}
.news-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.news-card:hover .pic img{transform:scale(1.05)}
.news-card .bd{padding:14px 15px 16px;flex:1;display:flex;flex-direction:column}
.news-card h3{margin:0 0 8px;font-size:15px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a{color:var(--c-deep)}
.news-card h3 a:hover{color:var(--c-primary)}
.news-card .sm{font-size:13px;color:var(--c-ink-2);line-height:1.65;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 10px}
.news-card .ft{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-3);border-top:1px dashed var(--c-line-2);padding-top:9px}
.news-row{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--c-line)}
.news-row:last-child{border-bottom:0}
.news-row .pic{flex:0 0 190px;height:126px;border-radius:var(--r-sm);overflow:hidden;background:#f8fbfd}
.news-row .pic img{width:100%;height:100%;object-fit:cover}
.news-row .bd{flex:1;min-width:0}
.news-row h3{margin:0 0 8px;font-size:16.5px;line-height:1.5}
.news-row h3 a{color:var(--c-deep)}
.news-row h3 a:hover{color:var(--c-primary)}
.news-row .sm{color:var(--c-ink-2);font-size:13.5px;line-height:1.72;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .ft{font-size:12.5px;color:var(--c-ink-3);display:flex;gap:16px;flex-wrap:wrap;align-items:center}

/* ---------------- 供应商卡片 ---------------- */
.sup-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:1000px){.sup-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.sup-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:16px;display:flex;gap:13px;transition:all .2s}
.sup-card:hover{box-shadow:var(--sh-3);border-color:#bfe0f0;transform:translateY(-2px)}
.sup-card .logo{flex:0 0 66px;height:66px;border:1px solid var(--c-line-2);border-radius:var(--r-sm);overflow:hidden;background:#fbfdff;display:flex;align-items:center;justify-content:center}
.sup-card .logo img{max-width:100%;max-height:100%;object-fit:contain}
.sup-card .bd{flex:1;min-width:0}
.sup-card .nm{font-size:14.5px;font-weight:600;line-height:1.45;margin-bottom:5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sup-card .nm a{color:var(--c-deep)}
.sup-card .nm a:hover{color:var(--c-primary)}
.sup-card .tags-line{font-size:12px;color:var(--c-ink-3);margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sup-card .loc{font-size:12px;color:var(--c-ink-3)}

/* ---------------- 品牌卡片 ---------------- */
.brand-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:1000px){.brand-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.brand-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:20px 16px;text-align:center;transition:all .2s;position:relative}
.brand-card:hover{box-shadow:var(--sh-3);border-color:#bfe0f0;transform:translateY(-3px)}
.brand-card .lg{height:60px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.brand-card .lg img{max-height:60px;max-width:88%;object-fit:contain}
.brand-card .lg .ph{font-size:19px;font-weight:700;color:var(--c-ink-3)}
.brand-card .nm{font-size:14.5px;font-weight:600;margin-bottom:4px;color:var(--c-deep)}
.brand-card .cn{font-size:12.5px;color:var(--c-ink-3)}

/* ---------------- 问答 ---------------- */
.qa-item{display:flex;gap:16px;padding:16px 18px;border-bottom:1px solid var(--c-line-2);background:#fff;transition:background .18s}
.qa-item:last-child{border-bottom:0}
.qa-item:hover{background:#fafdff}
.qa-stats{flex:0 0 88px;display:flex;gap:8px;flex-direction:column;text-align:center}
.qa-stats .st{background:var(--c-line-2);border-radius:var(--r-sm);padding:5px 0;font-size:11.5px;color:var(--c-ink-3);line-height:1.3}
.qa-stats .st b{display:block;font-size:15px;color:var(--c-primary-d)}
.qa-stats .st.answered{background:var(--c-teal-l)}
.qa-stats .st.answered b{color:#0b8a7d}
.qa-body{flex:1;min-width:0}
.qa-body h3{margin:0 0 7px;font-size:15.5px;line-height:1.5}
.qa-body h3 a{color:var(--c-deep)}
.qa-body h3 a:hover{color:var(--c-primary)}
.qa-body .sm{font-size:13.5px;color:var(--c-ink-2);line-height:1.7;margin:0 0 9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.qa-body .ft{display:flex;gap:14px;align-items:center;flex-wrap:wrap;font-size:12.5px;color:var(--c-ink-3)}
.answer-item{padding:18px;border-bottom:1px solid var(--c-line-2);display:flex;gap:14px}
.answer-item.best{background:var(--c-teal-l)}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-teal));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px;flex:0 0 42px;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}

/* ---------------- 详情页 ---------------- */
.detail-top{display:grid;grid-template-columns:355px minmax(0,1fr);gap:26px;padding:22px 0}
@media (max-width:900px){.detail-top{grid-template-columns:1fr}}
.gallery .main-pic{border:1px solid var(--c-line);border-radius:var(--r);overflow:hidden;aspect-ratio:1/1;background:#fbfdff;display:flex;align-items:center;justify-content:center}
.gallery .main-pic img{max-width:100%;max-height:100%;object-fit:contain}
.gallery .thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.gallery .thumbs img{width:62px;height:62px;object-fit:cover;border:2px solid var(--c-line);border-radius:var(--r-sm);cursor:pointer}
.gallery .thumbs img.on{border-color:var(--c-primary)}
.pro-info h1{font-size:21px;line-height:1.45;margin:0 0 12px}
.pro-price-box{background:linear-gradient(135deg,#fff5f5,#fff);border:1px solid #fbdada;border-radius:var(--r);padding:16px 18px;margin-bottom:18px}
.pro-price-box .p{color:var(--c-danger);font-size:30px;font-weight:700;line-height:1.15}
.pro-price-box .p small{font-size:14px;font-weight:400;color:var(--c-ink-3);margin-left:6px}
.pro-price-box .mkt{font-size:13px;color:var(--c-ink-3);text-decoration:line-through;margin-left:10px}
.pro-attrs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px 22px;font-size:13.5px;margin-bottom:18px}
.pro-attrs .a{display:flex;gap:8px;overflow:hidden}
.pro-attrs .a .k{color:var(--c-ink-3);flex:0 0 76px}
.pro-attrs .a .v{color:var(--c-ink);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pro-acts{display:flex;gap:10px;flex-wrap:wrap;padding-top:16px;border-top:1px dashed var(--c-line)}
.detail-tabs{display:flex;gap:0;border-bottom:2px solid var(--c-line);margin-bottom:0;flex-wrap:wrap}
.detail-tabs a{padding:12px 26px;font-size:15px;color:var(--c-ink-2);border-bottom:2px solid transparent;margin-bottom:-2px}
.detail-tabs a.on{color:var(--c-primary);border-bottom-color:var(--c-primary);font-weight:600}
.detail-tabs a:hover{color:var(--c-primary)}

/* ---------------- 会员中心 ---------------- */
.member-wrap{display:grid;grid-template-columns:216px minmax(0,1fr);gap:22px;align-items:start;padding:20px 0 46px}
.member-side{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);overflow:hidden;position:sticky;top:14px}
.ms-user{padding:20px 16px;text-align:center;background:linear-gradient(135deg,var(--c-primary-d),var(--c-primary));color:#fff}
.ms-user .avatar{margin:0 auto 10px;width:60px;height:60px;font-size:22px;background:rgba(255,255,255,.22)}
.ms-user .nm{font-size:15px;font-weight:600;margin-bottom:3px;word-break:break-all}
.ms-user .lv{display:inline-block;font-size:11.5px;padding:1px 10px;border-radius:10px;background:rgba(255,255,255,.22)}
.ms-menu{padding:8px 0}
.ms-menu a{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;font-size:13.8px;color:var(--c-ink-2);border-left:3px solid transparent}
.ms-menu a:hover{background:var(--c-line-2);color:var(--c-primary)}
.ms-menu a.on{background:var(--c-primary-l);color:var(--c-primary-d);border-left-color:var(--c-primary);font-weight:600}
.ms-menu .gp{padding:12px 18px 5px;font-size:11.5px;color:var(--c-ink-3);letter-spacing:.6px}
.ms-menu .cnt{background:var(--c-danger);color:#fff;font-size:11px;min-width:18px;height:18px;line-height:18px;text-align:center;border-radius:9px;padding:0 5px}
.member-main{min-width:0}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:20px}
@media (max-width:900px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.stat-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:16px 18px;position:relative;overflow:hidden}
.stat-card .n{font-size:26px;font-weight:700;color:var(--c-primary-d);line-height:1.15}
.stat-card .l{font-size:13px;color:var(--c-ink-3);margin-top:3px}
.stat-card::after{content:"";position:absolute;right:-16px;bottom:-16px;width:64px;height:64px;border-radius:50%;background:var(--c-primary-l);opacity:.65}

/* ---------------- 页脚 ---------------- */
.site-footer{background:var(--c-deep);color:#9dc0d4;margin-top:30px;font-size:13px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.1fr;gap:26px;padding:38px 0 30px}
.footer-top h4{color:#fff;font-size:14.5px;margin:0 0 14px;font-weight:600}
.footer-top a{color:#9dc0d4;display:block;padding:4px 0;font-size:13px}
.footer-top a:hover{color:#fff}
.footer-top .intro{line-height:1.85;color:#8fb6cb;margin:12px 0 0;font-size:12.8px}
.footer-top .fd-logo{color:#fff;font-size:18px;font-weight:700}
.footer-top .contact-line{display:flex;gap:8px;padding:4px 0;font-size:12.8px;line-height:1.6}
.footer-top .contact-line b{color:#fff;font-weight:500}
.footer-bot{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7fa5bb}
.footer-bot a{color:#7fa5bb}
.footer-bot a:hover{color:#fff}

/* 数据下拉 */
.dd-select{position:relative}
.dd-select .dds-input{display:flex;gap:6px}
.dd-select .dds-list{position:absolute;top:100%;left:0;right:0;max-height:250px;overflow:auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);box-shadow:var(--sh-3);z-index:60;display:none}
.dd-select .dds-list.on{display:block}
.dd-select .dds-list div{padding:8px 13px;cursor:pointer;font-size:13.5px}
.dd-select .dds-list div:hover{background:var(--c-primary-l)}

/* 比价表 */
.cmp-wrap{overflow-x:auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r)}
.cmp-tb{min-width:820px;font-size:13.5px}
.cmp-tb th,.cmp-tb td{border:1px solid var(--c-line);padding:12px 14px;vertical-align:top}
.cmp-tb thead th{background:#f7fbfe;text-align:center;width:22%;position:relative}
.cmp-tb thead th:first-child{width:130px;background:var(--c-line-2);text-align:left}
.cmp-tb tbody th{background:var(--c-line-2);text-align:left;font-weight:500;color:var(--c-ink-2);white-space:nowrap}
.cmp-tb .cp-pic{width:80%;max-width:130px;aspect-ratio:1;object-fit:contain;margin-bottom:8px;background:#fbfdff;border:1px solid var(--c-line-2);border-radius:var(--r-sm)}
.cmp-tb .cp-price{color:var(--c-danger);font-size:17px;font-weight:700}
.cmp-tb .rm{position:absolute;top:6px;right:6px;border:0;background:var(--c-line-2);color:var(--c-ink-3);width:22px;height:22px;border-radius:50%;line-height:1}
.cmp-tb .rm:hover{background:var(--c-danger);color:#fff}
.cmp-picker{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;max-height:420px;overflow:auto}
.cmp-picker .p{padding:10px;border:1px solid var(--c-line);border-radius:var(--r-sm);display:flex;gap:9px;cursor:pointer}
.cmp-picker .p.on{border-color:var(--c-primary);background:var(--c-primary-l)}
.cmp-picker .p img{width:52px;height:52px;object-fit:cover;border-radius:4px;flex:0 0 52px}
.cmp-picker .p .t{font-size:13px;line-height:1.4;min-width:0}

/* 流程图（状态时间轴） */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--c-line)}
.timeline .tl{position:relative;padding-bottom:18px}
.timeline .tl:last-child{padding-bottom:0}
.timeline .tl::before{content:"";position:absolute;left:-24px;top:4px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--c-line)}
.timeline .tl.on::before{border-color:var(--c-primary);background:var(--c-primary)}
.timeline .tl .t{font-size:14px;font-weight:500;color:var(--c-deep)}
.timeline .tl .d{font-size:12.5px;color:var(--c-ink-3);margin-top:2px}

/* 导航站 */
.navsite-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:1000px){.navsite-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.navsite-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:16px;display:flex;gap:13px;transition:all .2s}
.navsite-card:hover{box-shadow:var(--sh-3);border-color:#bfe0f0;transform:translateY(-2px)}
.navsite-card .lg{flex:0 0 60px;height:60px;border:1px solid var(--c-line-2);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fbfdff}
.navsite-card .lg img{max-width:100%;max-height:100%;object-fit:contain}
.navsite-card .bd{flex:1;min-width:0}
.navsite-card .nm{font-size:14px;font-weight:600;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.navsite-card .nm a{color:var(--c-deep)}
.navsite-card .sm{font-size:12.5px;color:var(--c-ink-3);line-height:1.6;height:3.2em;overflow:hidden;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.navsite-card .meta{font-size:12px;color:var(--c-ink-3);display:flex;gap:8px;flex-wrap:wrap}

/* 首页 hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:18px;margin-bottom:18px}
@media (max-width:1000px){.hero{grid-template-columns:1fr}}
.hero-slider{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#dceaf3;height:342px}
.hero-slider .slide{position:absolute;inset:0;opacity:0;transition:opacity .6s;background-size:cover;background-position:center}
.hero-slider .slide.on{opacity:1}
.hero-slider .slide .inner{position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,47,71,.82) 0%,rgba(9,47,71,.5) 46%,rgba(9,47,71,.06) 100%);display:flex;flex-direction:column;justify-content:center;padding:0 46px;color:#fff}
.hero-slider .slide h2{color:#fff;font-size:30px;margin:0 0 10px;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.hero-slider .slide p{color:#d7ecf7;font-size:15px;margin:0 0 20px;max-width:520px}
.hero-slider .dots{position:absolute;left:46px;bottom:20px;display:flex;gap:7px;z-index:3}
.hero-slider .dots i{width:22px;height:4px;border-radius:2px;background:rgba(255,255,255,.42);cursor:pointer}
.hero-slider .dots i.on{background:#fff}
.hero-side{display:flex;flex-direction:column;gap:14px}
.hero-side .quick{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:16px;flex:1}
.hero-side .quick h3{margin:0 0 12px;font-size:15px}
.hero-side .quick .items{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.hero-side .quick .items a{display:flex;flex-direction:column;align-items:center;gap:5px;padding:11px 4px;border-radius:var(--r-sm);background:#f7fbfe;font-size:12.5px;color:var(--c-ink-2);text-align:center}
.hero-side .quick .items a:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.hero-side .quick .items .i{font-size:19px}
.hero-side .stats{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:14px 16px}
.hero-side .stats .row{display:flex;justify-content:space-between;padding:6px 0;font-size:13px;color:var(--c-ink-2)}
.hero-side .stats .row b{color:var(--c-primary);font-size:15px}

/* 分类宫格（首页） */
.cat-tiles{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
@media (max-width:1000px){.cat-tiles{grid-template-columns:repeat(4,minmax(0,1fr))}}
.cat-tiles a{background:#fff;border:1px solid var(--c-line);border-radius:var(--r);padding:16px 10px;text-align:center;transition:all .2s}
.cat-tiles a:hover{border-color:#bfe0f0;box-shadow:var(--sh-2);transform:translateY(-3px)}
.cat-tiles .i{font-size:24px;display:block;margin-bottom:7px}
.cat-tiles .n{font-size:13px;color:var(--c-ink);line-height:1.4}
.cat-tiles .c{font-size:11.5px;color:var(--c-ink-3);margin-top:2px}