/* 产品中心（products/） */
nav a.current{color:var(--blue);font-weight:600}
.pc main{background:#fff}
.pc-crumbs{padding:22px 5% 0;font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px}
.pc-crumbs a:hover{color:var(--blue)}.pc-crumbs b{font-weight:500;color:var(--ink)}
.pc-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:50px;padding:30px 5% 90px}
/* 左侧产品目录 */
.pc-side details{position:sticky;top:120px;border-top:3px solid var(--blue)}
.pc-side summary{list-style:none;font-size:13px;letter-spacing:2px;color:var(--blue);padding:16px 0 10px;cursor:default}
.pc-side summary::-webkit-details-marker{display:none}
.pc-side-all{display:block;font-size:13px;color:var(--muted);padding:8px 0 14px;border-bottom:1px solid var(--line)}
.pc-side-all:hover{color:var(--blue)}
.pc-cats{list-style:none;margin:0;padding:0}
.pc-cats>li{border-bottom:1px solid var(--line)}
.pc-cats .cat{display:flex;justify-content:space-between;align-items:center;padding:15px 0;font-size:15px}
.pc-cats .cat i{font-style:normal;color:#9fb1c0;font-size:18px;transition:transform .2s}
.pc-cats li.open>.cat{color:var(--blue);font-weight:600}.pc-cats li.open>.cat i{transform:rotate(90deg);color:var(--blue)}
.pc-cats .cat:hover{color:var(--blue)}
.pc-cats ul{list-style:none;margin:0 0 12px;padding:0 0 0 12px;border-left:2px solid #e3ebf1}
.pc-cats ul a{display:block;font-size:13px;color:var(--muted);padding:7px 0 7px 10px;line-height:1.5}
.pc-cats ul a:hover{color:var(--blue)}
.pc-cats ul a.on{color:var(--blue);font-weight:600;margin-left:-14px;padding-left:22px;border-left:2px solid var(--red)}
/* 标题区 */
.pc-head{padding-bottom:30px;border-bottom:1px solid var(--line);margin-bottom:10px}
.pc-head h1{font-size:clamp(32px,3.2vw,48px);letter-spacing:-1px;margin:0 0 18px;line-height:1.3}
.pc-head p{max-width:820px;font-size:14px;color:var(--muted);margin:0}
.pc-head .section-label{margin-bottom:18px}
/* 图片与无图占位 */
.pc-visual,.pc-thumb,.pc-card-img{position:relative;background:linear-gradient(145deg,#eef4f8,#fbfdfe);overflow:hidden;display:flex;align-items:center;justify-content:center}
.pc-visual img,.pc-thumb img,.pc-card-img img{width:100%;height:100%;object-fit:contain}
.pc-visual>span,.pc-thumb>span,.pc-card-img>span{display:none}
.noimg>span{display:block;position:absolute;left:16px;bottom:10px;right:10px;color:#c3d2de;font-weight:700;letter-spacing:-1px;line-height:1;font-size:30px}
.pc-thumb.noimg>span{font-size:9px;letter-spacing:0;left:6px;bottom:6px;color:#9fb3c3;overflow:hidden;white-space:nowrap}
.noimg:before{content:'';position:absolute;width:46%;max-width:230px;aspect-ratio:1;border-radius:50%;border:16px solid #cfdce6;box-shadow:inset 0 0 0 10px #f6f9fb,inset 0 0 0 26px #dbe5ed}
.pc-thumb.noimg:before{border-width:6px;box-shadow:inset 0 0 0 4px #f6f9fb,inset 0 0 0 10px #dbe5ed;width:52%}
/* 总览：一级分类列表 */
.pc-rows{display:flex;flex-direction:column}
.pc-row{display:grid;grid-template-columns:88px 1fr auto 24px;align-items:center;gap:26px;padding:20px 6px;border-bottom:1px solid var(--line);transition:background .2s}
.pc-row:hover{background:#f6f9fb}.pc-row:hover h3{color:var(--blue)}
.pc-thumb{width:88px;height:88px}
.pc-row h3{font-size:20px;font-weight:500;margin:0 0 6px}
.pc-row p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}
.pc-row small{font-size:12px;color:#8a9aa8}
.pc-row i{font-style:normal;font-size:26px;color:var(--ink)}
/* 分类页：卡片 */
.pc-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:22px;margin-top:30px}
.pc-card{display:flex;flex-direction:column;border:1px solid var(--line);background:#fff;transition:border-color .2s,box-shadow .2s}
.pc-card:hover{border-color:#9ab9d4;box-shadow:0 10px 24px #0b2e4d12}
.pc-card-img{height:190px}
.pc-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.pc-card h3{font-size:18px;font-weight:500;margin:0 0 10px}
.pc-card p{font-size:13px;color:var(--muted);margin:0 0 16px;line-height:1.8;flex:1}
.pc-card span{font-size:12px;color:var(--blue)}
/* 详情页 */
.pc-detail-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:45px;align-items:center;padding-bottom:40px;border-bottom:1px solid var(--line)}
.pc-visual{aspect-ratio:1/1;max-height:430px}
.pc-detail h1{font-size:clamp(30px,3vw,44px);letter-spacing:-1px;margin:0 0 20px;line-height:1.3}
.pc-detail .lead{font-size:16px;color:var(--ink);margin:0 0 28px}
.pc-blocks{display:grid;grid-template-columns:1fr 1fr;gap:0 50px}
.pc-blocks section{padding:32px 0;border-bottom:1px solid var(--line)}
.pc-blocks h2{font-size:20px;letter-spacing:0;margin:0 0 14px}
.pc-blocks ul{list-style:none;margin:0;padding:0}
.pc-blocks li{font-size:14px;color:var(--muted);line-height:1.8;padding:5px 0 5px 22px;position:relative}
.pc-blocks li:before{content:'';position:absolute;left:0;top:15px;width:10px;height:2px;background:var(--blue)}
.pc-blocks .offer li:before{background:var(--red)}
.pc-note{font-size:12px;color:#8a9aa8;margin:22px 0 0}
.pc-pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.pc-pager a{display:flex;flex-direction:column;gap:6px;padding:20px 24px;border:1px solid var(--line);transition:border-color .2s}
.pc-pager a:hover{border-color:var(--blue)}
.pc-pager small{font-size:12px;color:var(--blue)}
.pc-pager b{font-size:16px;font-weight:500}
.pc-pager .next{text-align:right}
/* 咨询条 */
.pc-cta{margin-top:50px;background:var(--paper);padding:32px 36px;display:flex;align-items:center;gap:30px;flex-wrap:wrap}
.pc-cta>div{flex:1;min-width:240px}.pc-cta b{font-size:19px;font-weight:500}.pc-cta p{font-size:13px;color:var(--muted);margin:6px 0 0}
.pc-phone{font-size:20px;color:var(--blue)}
@media(max-width:1100px){.pc-layout{grid-template-columns:210px minmax(0,1fr);gap:35px}.pc-detail-top{gap:30px}}
@media(max-width:800px){.pc-layout{grid-template-columns:1fr;gap:0;padding-top:16px}
 .pc-side details{position:static;border:1px solid var(--line);border-top:3px solid var(--blue);padding:0 16px;margin-bottom:28px}
 .pc-side details:not([open]){padding-bottom:0}
 .pc-side summary{cursor:pointer;display:flex;justify-content:space-between;font-size:14px;padding:15px 0}
 .pc-side summary:after{content:'展开 ▾';font-size:12px;letter-spacing:0;color:var(--muted)}
 .pc-side details[open] summary:after{content:'收起 ▴'}
 .pc-detail-top,.pc-blocks{grid-template-columns:1fr}.pc-visual{max-height:none}}
@media(max-width:600px){.pc-crumbs{padding:16px 7% 0}.pc-layout{padding:14px 7% 60px}
 .pc-row{grid-template-columns:64px 1fr 18px;gap:16px;padding:16px 0}.pc-row small{display:none}.pc-thumb{width:64px;height:64px}.pc-row h3{font-size:17px}.pc-row p{font-size:12px}
 .pc-cards{grid-template-columns:1fr}.pc-card-img{height:170px}
 .pc-pager{grid-template-columns:1fr 1fr;gap:10px}.pc-pager a{padding:14px}.pc-pager b{font-size:14px}
 .pc-cta{padding:24px}.pc-detail .lead{font-size:15px}}
.pc-visual,.pc-thumb,.pc-card-img{background:#fff}.noimg{background:linear-gradient(145deg,#eef4f8,#fbfdfe)!important}