:root{--or:#ff6a00;--or2:#e85d00;--ink:#222;--mut:#666;--line:#e4e4e4;--bg:#f4f4f4;--ok:#0a9b4b}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 "Segoe UI",Arial,"Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}
a{color:inherit;text-decoration:none}a:hover{color:var(--or)}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 16px}
.topbar{background:#333;color:#ccc;font-size:12px}.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:6px;padding-bottom:6px}
.tb-r a{margin-left:16px;color:#ddd}.tb-r a:hover{color:#fff}.tb-r .join{color:var(--or);font-weight:600}
.head{background:#fff;border-bottom:1px solid var(--line)}
.hrow{display:flex;align-items:center;gap:20px;padding-top:14px;padding-bottom:14px}
.logo{display:flex;align-items:center;gap:10px}.logo b{display:block;font-size:20px;letter-spacing:.5px;line-height:1}.logo small{color:var(--mut);font-size:11px}
.search{flex:1;display:flex;border:2px solid var(--or);border-radius:4px;overflow:hidden;min-width:0}
.search select,.search input{border:0;padding:0 10px;height:40px;font:inherit;outline:0;background:#fff}
.search select{border-right:1px solid var(--line);background:#fafafa}.search input{flex:1;min-width:0}
.search button{background:var(--or);color:#fff;border:0;padding:0 24px;font-weight:600;cursor:pointer}
.hact{display:flex;gap:8px;white-space:nowrap}
.btn{display:inline-block;background:var(--or);color:#fff;border:1px solid var(--or);padding:8px 16px;border-radius:4px;font:600 13px/1.3 inherit;cursor:pointer;text-align:center}
.btn:hover{background:var(--or2);color:#fff}.btn.ghost{background:#fff;color:var(--or)}.btn.ghost:hover{background:#fff4ec;color:var(--or2)}
.btn.sm{padding:6px 10px;font-size:12px}.btn.lg{padding:11px 26px;font-size:15px}.btn.block{display:block;margin-top:8px}
.burger{display:none;background:none;border:0;font-size:26px;cursor:pointer}
.nav{background:#fff;border-top:1px solid var(--line)}.nav .wrap{display:flex}
.nav a{padding:11px 20px;font-weight:600}.nav a.on,.nav a:hover{color:var(--or);box-shadow:inset 0 -3px var(--or)}
.hero{display:grid;grid-template-columns:230px 1fr 250px;gap:14px;margin-top:16px}
.cats{background:#fff;border:1px solid var(--line)}.cats h4{margin:0;padding:10px 14px;background:var(--or);color:#fff}
.cats a{display:flex;justify-content:space-between;padding:10px 14px;border-bottom:1px solid #f0f0f0}.cats a:hover{background:#fff4ec}.cats i{font-style:normal;color:#aaa}
.banner{position:relative;min-height:380px;overflow:hidden;background:#222}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .6s;display:flex;align-items:center}
.slide.on{opacity:1}.st{color:#fff;padding:0 40px;max-width:520px}.st h2{font-size:34px;margin:0 0 10px;line-height:1.15}.st p{font-size:16px;margin:0 0 20px;color:#eee}
.dots{position:absolute;bottom:12px;left:0;right:0;text-align:center}.dots i{display:inline-block;width:28px;height:4px;background:#fff6;margin:0 3px;cursor:pointer}.dots i.on{background:var(--or)}
.scard{background:#fff;border:1px solid var(--line);padding:14px}.sc-h b{display:block;font-size:16px;margin-top:4px}
.vb{background:#e8f7ee;color:var(--ok);font-size:11px;padding:2px 8px;border-radius:10px;font-weight:600}
.scard ul{list-style:none;padding:0;margin:12px 0;color:var(--mut);font-size:13px}.scard li{padding:4px 0;border-bottom:1px dashed #eee}
.stats{display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border:1px solid var(--line);margin-top:14px;padding:0}
.stats div{padding:16px;text-align:center;border-right:1px solid #f0f0f0}.stats div:last-child{border:0}.stats b{display:block;font-size:22px;color:var(--or)}.stats span{color:var(--mut);font-size:12px}
.sec{background:#fff;border:1px solid var(--line);margin-top:14px;padding:16px}
.sh{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.sh h2{margin:0;font-size:20px;border-left:4px solid var(--or);padding-left:10px}.sh small{font-size:13px;font-weight:400;color:var(--mut)}
.sh>a{color:var(--or)}
.tabs button{background:#fff;border:1px solid var(--line);padding:6px 14px;cursor:pointer;font:inherit}.tabs button.on{background:var(--or);color:#fff;border-color:var(--or)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.grid.g4{grid-template-columns:repeat(4,1fr)}
.pc{border:1px solid var(--line);background:#fff;padding:10px;display:flex;flex-direction:column;transition:box-shadow .2s}.pc:hover{box-shadow:0 4px 16px #0002}
.pi{position:relative;display:block;aspect-ratio:1/1;overflow:hidden;background:#f2efe9}.pi img{width:100%;height:100%;object-fit:cover}
.b{position:absolute;top:6px;left:6px;font-style:normal;font-size:11px;font-weight:700;background:var(--or);color:#fff;padding:1px 7px;border-radius:2px}.b.hw{left:auto;right:6px;background:#6b2fb3}
.pt{margin:8px 0 4px;font-size:13px;line-height:1.35;height:35px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pp b{font-size:16px;color:var(--or2)}.pp small{color:var(--mut)}.pm{font-size:12px;color:var(--mut)}.pm span{color:var(--or)}
.pm2{display:flex;justify-content:space-between;font-size:12px;color:var(--mut);margin:4px 0 8px}.ok{color:var(--ok)}
.pb{display:flex;gap:6px;margin-top:auto}.pb .btn{flex:1;padding:6px 4px}
.more{text-align:center;margin:16px 0 0}
.how ol{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0;margin:0}.how li{background:#fafafa;border:1px solid var(--line);padding:16px;position:relative}.how li b{position:absolute;top:-1px;right:-1px;background:var(--or);color:#fff;width:30px;height:30px;text-align:center;line-height:30px}.how h4{margin:0 0 6px}.how p{margin:0;color:var(--mut)}
.two-col{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}
.ticks{list-style:none;padding:0;margin:0}.ticks li{padding:7px 0 7px 26px;position:relative;border-bottom:1px dashed #eee}.ticks li:before{content:"\2713";position:absolute;left:0;color:var(--ok);font-weight:700}
.rfq{background:#fff8f2;border:1px solid #ffd9bd;padding:18px;border-radius:4px;align-self:start}.rfq h3{margin:0}.rfq .sub{color:var(--mut);margin:4px 0 12px}
.rfq label{display:block;font-size:12px;font-weight:600;margin-bottom:10px}.rfq input,.rfq textarea,.rfq select{display:block;width:100%;margin-top:3px;padding:9px;border:1px solid #ccc;border-radius:3px;font:inherit;background:#fff}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.fine{font-size:12px;color:var(--mut)}
.crumbs{padding-top:14px;padding-bottom:2px;color:var(--mut);font-size:13px}
.plist{display:grid;grid-template-columns:220px 1fr;gap:14px;margin-top:6px;align-items:start}
.filters{background:#fff;border:1px solid var(--line);padding:12px}.filters h4{margin:8px 0}.filters a{display:flex;justify-content:space-between;padding:7px 8px}.filters a.on{background:#fff4ec;color:var(--or);font-weight:600}.filters em{font-style:normal;color:#aaa}
.bar{background:#fff;border:1px solid var(--line);padding:10px 14px;margin-bottom:14px;display:flex;align-items:center;gap:10px}.sp{flex:1}.bar select{padding:5px}
.empty{background:#fff;padding:30px;text-align:center}
.pd{display:grid;grid-template-columns:480px 1fr;gap:28px;background:#fff;border:1px solid var(--line);margin-top:8px;padding:20px}
.gal .main{aspect-ratio:1/1;background:#f2efe9;border:1px solid var(--line)}.gal .main img{width:100%;height:100%;object-fit:contain}
.th{display:flex;gap:8px;margin-top:8px}.th img{width:70px;height:70px;object-fit:cover;border:2px solid transparent;cursor:pointer}.th img.on{border-color:var(--or)}
.info h1{font-size:19px;line-height:1.35;margin:0 0 8px}.meta{color:var(--mut);margin-bottom:12px}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);background:#fff4ec;margin-bottom:14px}.tiers div{padding:12px;border-right:1px solid #ffe0cc}.tiers small{display:block;color:var(--mut)}.tiers b{font-size:20px;color:var(--or2)}
.opt{display:grid;grid-template-columns:100px 1fr;gap:8px 10px;margin:0 0 16px}.opt dt{color:var(--mut)}.opt dd{margin:0}
.chip{display:inline-block;border:1px solid #ccc;padding:3px 12px;margin-right:6px;cursor:pointer}.chip.on{border-color:var(--or);color:var(--or)}
.cta{display:flex;gap:10px;margin-bottom:14px}.sup{border-top:1px solid var(--line);padding-top:10px;color:var(--mut)}
.dcols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.spec{border-collapse:collapse;width:100%}.spec th,.spec td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}.spec th{background:#fafafa;width:34%;font-weight:600}.spec.wide th{width:auto}
.doc{background:#fff;border:1px solid var(--line);padding:24px;margin-top:8px;margin-bottom:24px}.doc h1{margin:0 0 6px}.doc h3{margin:22px 0 8px}.lead{color:var(--mut);font-size:16px}
details{border:1px solid var(--line);margin:8px 0;padding:10px 14px}summary{cursor:pointer;font-weight:600}
.news{border-bottom:1px solid var(--line);padding:14px 0}.news time{color:var(--or);font-size:12px}.news h3{margin:2px 0 4px}.news p{margin:0;color:var(--mut)}
.wh{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.wh div{background:#fafafa;border:1px solid var(--line);padding:14px}.wh h3{margin:0 0 6px;color:var(--or)}.wh p{margin:0}
.foot{background:#2b2b2b;color:#bbb;margin-top:24px}.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:24px;padding-top:28px;padding-bottom:20px}
.foot h4{color:#fff;margin:0 0 10px}.foot a{display:block;padding:2px 0}.foot p{margin:0 0 8px}.foot .cn{color:#888}
.copy{background:#222;font-size:12px;color:#888}.copy .wrap{padding-top:12px;padding-bottom:12px}
.chat{position:fixed;right:16px;bottom:16px;z-index:50}
.chat>button{background:var(--or);color:#fff;border:0;border-radius:24px;padding:11px 18px;font-weight:600;cursor:pointer;box-shadow:0 3px 12px #0004}
.chatbox{position:absolute;right:0;bottom:50px;width:300px;background:#fff;border:1px solid #ccc;box-shadow:0 6px 24px #0003}
.ch{background:var(--or);color:#fff;padding:9px 12px;display:flex;justify-content:space-between}.ch b{cursor:pointer}
.cb{height:200px;overflow:auto;padding:10px;background:#fafafa}.cb p{margin:0 0 8px;padding:7px 10px;border-radius:6px;max-width:85%}.cb .bot{background:#fff;border:1px solid var(--line)}.cb .me{background:#ffe9d9;margin-left:auto}
#cf{display:flex}#cf input{flex:1;border:0;border-top:1px solid var(--line);padding:9px;outline:0}#cf button{border:0;background:var(--or);color:#fff;padding:0 14px;cursor:pointer}
#totop{position:fixed;right:16px;bottom:70px;background:#fff;border:1px solid var(--line);width:38px;height:38px;line-height:38px;text-align:center;display:none;z-index:40}
.modal{position:fixed;inset:0;background:#0008;display:flex;align-items:center;justify-content:center;z-index:100}.modal[hidden]{display:none}
.mb{background:#fff;padding:26px;max-width:420px;width:90%;position:relative;border-radius:4px}.mx{position:absolute;top:8px;right:14px;font-size:24px;cursor:pointer}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:#333;color:#fff;padding:10px 20px;border-radius:4px;z-index:120}.toast[hidden]{display:none}
@media(max-width:1000px){.hero{grid-template-columns:1fr}.cats,.scard{display:none}.grid,.grid.g4{grid-template-columns:repeat(2,1fr)}.pd,.two-col,.dcols{grid-template-columns:1fr}.plist{grid-template-columns:1fr}.filters{display:none}.stats{grid-template-columns:repeat(2,1fr)}.how ol,.wh{grid-template-columns:1fr 1fr}.fgrid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.hrow{flex-wrap:wrap;gap:10px}.search{order:3;flex-basis:100%}.hact{display:none}.burger{display:block;margin-left:auto}.nav{display:none}.nav.open{display:block}.nav .wrap{flex-direction:column}.topbar .tb-r a:not(.join){display:none}.banner{min-height:300px}.st{padding:0 20px}.st h2{font-size:24px}.how ol,.wh,.fgrid{grid-template-columns:1fr}.search select{display:none}.grid{gap:8px}.pb{flex-direction:column}.tiers b{font-size:16px}.doc{padding:16px}}

.catgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ct{display:block;border:1px solid var(--line);padding:10px;background:#fff;position:relative}.ct:hover{box-shadow:0 4px 16px #0002}
.ct img{width:100%;aspect-ratio:4/3;object-fit:cover;margin-bottom:8px}.ct b{display:block;font-size:15px}.ct span{display:block;color:var(--mut);font-size:12px}.ct em{font-style:normal;color:var(--or);font-size:12px;font-weight:600}
.svcgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.svcgrid div{background:#fafafa;border:1px solid var(--line);padding:16px;display:grid;grid-template-columns:44px 1fr;gap:0 12px}
.svcgrid i{grid-row:span 2;font-style:normal;font-size:30px;line-height:44px;text-align:center;background:#fff4ec;border-radius:50%;height:44px}.svcgrid h4{margin:0}.svcgrid p{margin:2px 0 0;color:var(--mut);font-size:13px}
.tabs{overflow-x:auto;white-space:nowrap}
@media(max-width:1000px){.catgrid{grid-template-columns:repeat(2,1fr)}.svcgrid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.svcgrid{grid-template-columns:1fr}}