*,*::before,*::after{box-sizing:border-box}
:root{
--ink:#0a2a7d;--ink-2:#123586;--deep:#061a4f;--steel:#3f5583;
--line:#d8dee9;--paper:#ffffff;
--wash:#f2f5fa;--wash-2:#e5eaf3;--copper:#c09838;--copper-d:#8d6612;
--sand:#f8f5ec;
--max:1240px;
}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
font:16px/1.65 "Inter","Helvetica Neue",Arial,"Microsoft YaHei",sans-serif;
-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.18}
h1{font-size:clamp(30px,4.2vw,50px)}
h2{font-size:clamp(24px,2.9vw,34px)}
h3{font-size:19px}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--copper-d);font-weight:600}
.lead{color:var(--steel);font-size:17px;max-width:72ch}
.util{background:var(--ink);color:#ccd8ee;font-size:13px}
.util .wrap{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px;flex-wrap:wrap}
.util a{color:#e6ecf0}
.util .u-r{display:flex;gap:22px;flex-wrap:wrap}
header.site{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:32px}
.brand{display:flex;align-items:center;gap:12px}
.mark{width:38px;height:38px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;letter-spacing:.02em}
.brand img.mark{width:auto;height:38px;background:none;display:block;object-fit:contain}
.brand .n{font-size:19px;font-weight:700;letter-spacing:.06em}
.brand .s{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--steel)}
nav.main{display:flex;gap:26px;align-items:stretch;align-self:stretch;font-size:14.5px;font-weight:500}
nav.main>a,nav.main .nav-item>a{position:relative;display:flex;align-items:center;padding:6px 0;color:var(--ink-2)}
nav.main a:hover{color:var(--copper-d)}
nav.main a.on{color:var(--copper-d)}
nav.main>a.on::after,nav.main .nav-item>a.on::after{content:"";position:absolute;left:0;right:0;bottom:20px;height:2px;background:var(--copper)}
nav.main .nav-item{position:relative;display:flex;align-items:stretch}
nav.main .sub{position:absolute;top:100%;left:-18px;background:#fff;border:1px solid var(--line);border-top:2px solid var(--copper);box-shadow:0 22px 48px rgba(8,40,120,.16);padding:10px;display:grid;gap:1px;min-width:252px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .16s,transform .16s,visibility .16s;z-index:90}
nav.main .sub.wide{grid-template-columns:1fr 1fr;min-width:470px}
nav.main .nav-item:hover .sub,nav.main .nav-item:focus-within .sub{opacity:1;visibility:visible;transform:none}
nav.main .sub a{display:block;padding:9px 12px;font-size:13.5px;font-weight:500;color:var(--ink-2);white-space:nowrap}
nav.main .sub a:hover{background:var(--wash);color:var(--copper-d)}
nav.main .sub a.all{grid-column:1/-1;border-top:1px solid var(--line);margin-top:3px;padding-top:11px;font-weight:600;color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;font-size:14px;font-weight:600;border:1px solid var(--ink);background:var(--ink);color:#fff;transition:.18s}
.btn:hover{background:var(--copper);border-color:var(--copper);color:var(--deep)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.sm{padding:9px 16px;font-size:13px}
.burger{display:none}
.hero{background:var(--deep);color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column}
.hero .slides{position:absolute;inset:0;z-index:0}
.hero .slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;animation:heroCycle 28s infinite ease-in-out}
.hero .slides img:nth-child(1){animation-delay:0s}
.hero .slides img:nth-child(2){animation-delay:7s}
.hero .slides img:nth-child(3){animation-delay:14s}
.hero .slides img:nth-child(4){animation-delay:21s}
@keyframes heroCycle{0%{opacity:0}2.2%{opacity:1}21.5%{opacity:1}25.7%{opacity:0}100%{opacity:0}}
.hero .scrim{position:absolute;inset:0;z-index:1;
background:linear-gradient(92deg,rgba(4,18,56,.88) 0%,rgba(4,18,56,.62) 42%,rgba(4,18,56,.16) 74%,rgba(4,18,56,.34) 100%),
linear-gradient(0deg,rgba(4,18,56,.62) 0%,rgba(4,18,56,.08) 46%,rgba(4,18,56,0) 100%)}
.hero .body{position:relative;z-index:2;flex:1;display:flex;align-items:center;min-height:440px}
.hero .wrap{width:100%;padding:80px 24px 56px}
.hero .hcopy{max-width:660px}
.hero h1{color:#fff}
.hero .eyebrow{color:#e2b463}
.hero p.lead{color:#c9d6ea;margin-top:20px;max-width:560px}
.hero .acts{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero .btn{background:#fff;color:var(--ink);border-color:#fff}
.hero .btn:hover{background:var(--copper);border-color:var(--copper);color:var(--deep)}
.hero .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.hero .btn.ghost:hover{background:#fff;color:var(--ink)}
.hero-dots{position:absolute;right:26px;bottom:126px;z-index:3;display:flex;gap:7px}
.hero-dots span{display:block;height:8px;width:8px;border-radius:4px;background:rgba(255,255,255,.34);
animation:dotOn 28s infinite ease-in-out}
.hero-dots span:nth-child(1){animation-delay:0s}
.hero-dots span:nth-child(2){animation-delay:7s}
.hero-dots span:nth-child(3){animation-delay:14s}
.hero-dots span:nth-child(4){animation-delay:21s}
@keyframes dotOn{0%,2.2%{width:8px;background:rgba(255,255,255,.34)}4.5%,21.5%{width:22px;background:var(--copper)}25.7%,100%{width:8px;background:rgba(255,255,255,.34)}}
@media (prefers-reduced-motion: reduce){
.hero .slides img,.hero-dots span{animation:none}
.hero .slides img{opacity:0}
.hero .slides img:nth-child(1){opacity:1}
.hero-dots span:nth-child(2),.hero-dots span:nth-child(3),.hero-dots span:nth-child(4){display:none}
}
.hero-tag{position:absolute;left:0;bottom:0;background:var(--copper);color:#fff;padding:14px 20px;font-size:13px;letter-spacing:.04em;max-width:270px}
.hero .stats{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.12);background:rgba(4,18,56,.42)}
.stats .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:12px;padding:24px 24px 34px}
.stats .i{color:#fff;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.17);padding:14px 17px}
.stats .v{font-size:24px;font-weight:700;letter-spacing:-.01em}
.stats .k{font-size:12px;color:#c2cfe6;letter-spacing:.06em;text-transform:uppercase;margin-top:3px}
section{padding:74px 0}
section.tight{padding:48px 0}
section.wash{background:var(--wash)}
section.dark{background:var(--deep);color:#fff}
section.dark .lead,section.dark p{color:#b9c7de}
.shead{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:38px;flex-wrap:wrap}
.shead .lead{margin-top:12px}
.cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.cat{background:#fff;padding:30px 28px;display:flex;flex-direction:column;min-height:210px;transition:.2s}
.cat:hover{background:var(--sand)}
.cat .num{font-size:12px;letter-spacing:.14em;color:var(--copper-d);font-weight:600}
.cat h3{margin-top:12px}
.cat p{font-size:14px;color:var(--steel);margin-top:10px;flex:1}
.cat .more{margin-top:18px;font-size:13px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--ink);align-self:flex-start;padding-bottom:2px}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px 22px}
.card{border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;transition:.18s}
.card:hover{border-color:var(--ink);box-shadow:0 12px 30px rgba(8,40,120,.12)}
.card .ph{aspect-ratio:1/1;background:#fff;display:grid;place-items:center;padding:16px;border-bottom:1px solid var(--line)}
.card .ph img{max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.card .bd{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1}
.card .bd h4{font-size:14.5px;line-height:1.4;font-weight:600;letter-spacing:0}
.card .bd .meta{font-size:12px;color:#8089a0;margin-top:8px;letter-spacing:.03em}
.card .bd .go{margin-top:auto;padding-top:12px;font-size:12.5px;font-weight:600;color:var(--copper-d)}
.istrip{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.ic{position:relative;overflow:hidden;border:1px solid var(--line)}
.ic img{height:132px;width:100%;object-fit:cover;transition:.4s}
.ic:hover img{transform:scale(1.05)}
.ic span{position:absolute;left:0;bottom:0;right:0;background:linear-gradient(transparent,rgba(4,18,56,.86));color:#fff;font-size:13px;font-weight:600;padding:22px 12px 10px;letter-spacing:.02em}
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.adv .a{background:#fff;padding:26px 24px}
.adv .a .n{font-size:12px;color:var(--copper);font-weight:700;letter-spacing:.1em}
.adv .a .m{font-size:31px;font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1;font-variant-numeric:tabular-nums}
.adv .a .ml{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--copper);margin-top:7px;line-height:1.45}
.adv .a h4{font-size:16px;margin-top:10px}
.adv .a p{font-size:13.5px;color:var(--steel);margin-top:8px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.split img{width:100%;height:430px;object-fit:cover}
.kv{display:grid;gap:22px;margin-top:26px}
.kv .r{border-top:1px solid var(--line);padding-top:18px}
.kv .r .h{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--copper);font-weight:600}
.kv .r .t{font-size:19px;font-weight:600;margin-top:6px}
.kv .r .d{font-size:14px;color:var(--steel);margin-top:6px}
.brands{display:grid;grid-template-columns:repeat(7,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.brands .b{background:#fff;padding:22px 14px;text-align:center}
.brands .b .e{font-size:14px;font-weight:700;letter-spacing:.04em}
.brands .b .c{font-size:12px;color:#7d88a0;margin-top:4px}
.crumb{background:var(--wash);border-bottom:1px solid var(--line);font-size:13px;color:#4d5f85}
.crumb .wrap{padding:12px 24px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb a:hover{color:var(--copper)}
.crumb .sep{color:#9aa6bd}
.phead{background:var(--deep);color:#fff;padding:54px 0 46px}
.phead .eyebrow{color:#e2b463}
.phead h1{color:#fff;margin-top:12px;max-width:22ch}
.phead .lead{color:#b9c7de;margin-top:16px}
.phead .count{font-size:13px;color:#9aabc6;margin-top:18px;letter-spacing:.05em}
.chips{display:flex;gap:10px;flex-wrap:wrap;padding:22px 0;border-bottom:1px solid var(--line)}
.chip{font-size:13px;padding:8px 16px;border:1px solid var(--line);background:#fff;font-weight:500}
.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.pdp{display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:54px 0 30px}
.pdp .gal{border:1px solid var(--line);padding:26px;background:#fff;display:grid;place-items:center;min-height:420px}
.pdp .gal img{max-height:420px;object-fit:contain;mix-blend-mode:multiply}
.pdp .info .cat-lab{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--copper);font-weight:600}
.pdp .info h1{font-size:clamp(24px,2.7vw,34px);margin-top:10px}
.pdp .info .sub{color:var(--steel);font-size:14px;margin-top:12px}
.spec{margin-top:26px;border-top:1px solid var(--line)}
.spec .row{display:grid;grid-template-columns:170px 1fr;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.spec .row .k{color:#5b6a8a}
.spec .row .v{font-weight:500}
.cta-box{margin-top:28px;background:var(--sand);border:1px solid #e6dcc2;padding:24px}
.cta-box h4{font-size:16px}
.cta-box p{font-size:13.5px;color:var(--steel);margin-top:8px}
.cta-box .acts{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.prose{max-width:78ch}
.prose p{margin-top:16px;color:var(--ink-2)}
.prose h2{margin-top:40px}
.prose ul{margin:16px 0 0;padding-left:22px}
.prose li{margin-top:8px;color:var(--ink-2)}
h2.sm{font-size:22px}
.band{background:var(--deep);color:#fff;padding:56px 0}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.band h2{color:#fff;max-width:22ch}
.band .acts{display:flex;gap:12px;flex-wrap:wrap}
.band .btn{background:#fff;color:var(--ink);border-color:#fff}
.band .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
footer.site{background:#04143d;color:#adbdda;padding:64px 0 30px;font-size:13.5px}
footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
footer h5{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 16px}
footer a{display:block;padding:5px 0;color:#adbdda}
footer a:hover{color:#fff}
footer .bot{margin-top:44px;border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer .fbrand{color:#fff;font-size:16px;font-weight:700;letter-spacing:.06em}
@media (max-width:1080px){
nav.main{gap:17px;font-size:13.5px}
.hero .wrap{padding:54px 24px}
.hero .body{min-height:340px}
.hero-dots{bottom:118px;right:20px}
.pgrid{grid-template-columns:repeat(3,1fr)}
.istrip{grid-template-columns:repeat(4,1fr)}
.adv{grid-template-columns:repeat(2,1fr)}
.brands{grid-template-columns:repeat(4,1fr)}
.split,.pdp{grid-template-columns:1fr;gap:32px}
.cgrid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
header.site .wrap{flex-wrap:wrap;min-height:auto;padding:10px 24px}
nav.main{display:flex;order:3;width:100%;gap:18px;font-size:13.5px;overflow-x:auto;scrollbar-width:none}
nav.main::-webkit-scrollbar{display:none}
nav.main a{white-space:nowrap}
nav.main .sub{display:none}
.hero-dots{display:none}
.burger{display:none}
.pgrid{grid-template-columns:repeat(2,1fr);gap:16px 12px}
.istrip{grid-template-columns:repeat(2,1fr)}
.adv{grid-template-columns:1fr}
.brands{grid-template-columns:repeat(2,1fr)}
.stats .wrap{grid-template-columns:repeat(2,1fr)}
.cgrid{grid-template-columns:1fr}
footer .cols{grid-template-columns:1fr;gap:28px}
section{padding:50px 0}
}

/* ---- floating quotation dock (all pages) ---- */
.fq{position:fixed;right:26px;bottom:26px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.fq-toggle{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.fq-btn{display:inline-flex;align-items:center;gap:9px;background:var(--ink);color:#fff;padding:13px 20px;font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;cursor:pointer;border-bottom:3px solid var(--copper);box-shadow:0 10px 26px rgba(6,26,79,.26);transition:background .18s}
.fq-btn:hover{background:var(--ink-2)}
.fq-btn .x{display:none}
.fq-toggle:checked ~ .fq-btn > span:first-child{display:none}
.fq-toggle:checked ~ .fq-btn .x{display:inline}
.fq-panel{display:none;width:322px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--copper);box-shadow:0 20px 50px rgba(6,26,79,.22);padding:20px 22px 22px}
.fq-toggle:checked ~ .fq-panel{display:block}
.fq-panel .fq-tag{margin:0;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--copper-d);font-weight:700}
.fq-panel h5{margin:8px 0 0;font-size:16px;line-height:1.35;color:var(--ink)}
.fq-note{margin:10px 0 0;font-size:12.5px;line-height:1.6;color:var(--steel)}
.fq-list{margin:14px 0 0;border-top:1px solid var(--line)}
.fq-list a{display:flex;justify-content:space-between;align-items:baseline;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);font-size:12.5px;color:var(--steel);text-decoration:none}
.fq-list a:hover b{color:var(--copper-d)}
.fq-list a b{font-weight:600;color:var(--ink-2);font-size:13px}
.fq-cta{display:block;margin-top:16px;background:var(--ink);color:#fff;text-align:center;padding:12px 0;font-size:13px;letter-spacing:.04em;text-decoration:none}
.fq-cta:hover{background:var(--ink-2)}
@media (max-width:600px){.fq{right:12px;bottom:12px;left:12px;align-items:stretch}.fq-panel{width:auto}.fq-btn{justify-content:center}}

/* ---- category card icons ---- */
.cat .chd{display:flex;align-items:center;margin-bottom:14px}
.cat .cico{display:inline-flex;width:26px;height:26px;flex:0 0 26px;color:var(--copper-d)}
.cat .cico svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ================= 平板 / 手机适配（覆盖前面的旧断点） ================= */
.nrow{display:grid;grid-template-columns:150px 1fr 240px;gap:32px;align-items:start;
border-top:1px solid var(--line);padding:28px 0}
.nthumb{display:block;line-height:0}
.nthumb img{width:100%;height:160px;object-fit:cover;border:1px solid var(--line);display:block}
.navtog{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}

@media (max-width:1080px){
header.site .wrap{flex-wrap:wrap;min-height:auto;padding:10px 22px 8px;gap:10px}
header.site .wrap>.brand{order:1}
header.site .wrap>.btn.sm{order:2}
header.site .wrap>nav.main{order:3;flex-basis:100%;gap:20px;font-size:13.5px;justify-content:flex-start}
nav.main>a,nav.main .nav-item>a{padding:5px 0}
nav.main>a.on::after,nav.main .nav-item>a.on::after{bottom:2px}
.hero .wrap{padding:48px 22px 40px}
.hero .body{min-height:320px}
.hero-dots{bottom:112px;right:18px}
section{padding:58px 0}
section.tight{padding:40px 0}
.phead{padding:42px 0 36px}
.split img{height:330px}
.pdp .gal{min-height:340px}
.band{padding:44px 0}
}

@media (max-width:860px){
.burger{display:flex;flex-direction:column;justify-content:center;gap:4px;width:42px;height:38px;
order:2;margin-left:auto;cursor:pointer;border:1px solid var(--line);padding:0 11px;background:#fff}
.burger span{display:block;height:2px;background:var(--ink)}
header.site .wrap>.btn.sm{order:3;margin-left:0;padding:9px 14px;font-size:12.5px}
nav.main{display:none;flex-basis:100%;flex-direction:column;align-items:stretch;gap:0;
border-top:1px solid var(--line);margin-top:8px;padding-top:4px;order:9;overflow:visible}
.navtog:checked~nav.main{display:flex}
nav.main .nav-item{display:block}
nav.main>a,nav.main .nav-item>a{display:block;padding:11px 2px;border-bottom:1px solid var(--wash-2)}
nav.main .sub{display:none}
nav.main>a.on::after,nav.main .nav-item>a.on::after{display:none}
.brand .s{display:none}
.brand .n{font-size:17px}
/* 内联网格统一降列 */
[style*="grid-template-columns:repeat(4,1fr)"]{grid-template-columns:repeat(2,1fr)!important}
[style*="grid-template-columns:repeat(3,1fr)"]{grid-template-columns:repeat(2,1fr)!important}
[style*="grid-template-columns:repeat(2,1fr)"]{grid-template-columns:1fr!important}
[style*="grid-template-columns:1.1fr 2fr 2fr"]{grid-template-columns:1fr!important;gap:14px!important}
[style*="grid-template-columns:80px 1fr 2fr"]{grid-template-columns:1fr!important;gap:8px!important}
[style*="grid-template-columns:1fr 1fr"]{grid-template-columns:1fr!important}
.istrip{grid-template-columns:repeat(2,1fr);gap:10px}
.ic img{height:112px}
.cgrid{grid-template-columns:1fr}
.stats .wrap{grid-template-columns:repeat(2,1fr);gap:8px;padding:18px 16px 24px}
.phead h1{max-width:100%}
.chips{gap:8px;padding:16px 0}
.chip{font-size:12px;padding:7px 12px}
.pdp{gap:26px}
.spec .row{grid-template-columns:120px 1fr;gap:12px}
.lead{font-size:16px}
.nrow{grid-template-columns:1fr!important;gap:14px!important;padding:22px 0!important}
.nthumb{order:-1}
.nthumb img{height:190px!important}
footer.site{padding:44px 0 24px}
}

@media (max-width:600px){
.wrap{padding:0 16px}
.hero .wrap{padding:36px 16px 28px}
.hero .body{min-height:270px}
.hero-tag{display:none}
section{padding:44px 0}
.adv .a{padding:20px 18px}
.brands{grid-template-columns:repeat(2,1fr)}
.istrip{grid-template-columns:1fr 1fr;gap:8px}
.ic img{height:98px}
.phead{padding:30px 0 26px}
.pdp .gal{padding:14px;min-height:250px}
.pdp .gal img{max-height:270px}
.band{padding:34px 0}
.band h2{max-width:100%}
.spec .row{grid-template-columns:1fr;gap:2px;padding:10px 0}
.spec .row .v{margin-bottom:6px}
footer .cols{gap:22px}
.nthumb img{height:170px!important}
.fq{right:10px;bottom:10px;left:10px;align-items:stretch}
.fq-panel{width:auto}
.fq-btn{justify-content:center}
}