:root{
  --blue:#0057A8; --blue-deep:#003E7E; --bright:#1E90E0; --sky:#D9EBFA; --sky-soft:#EEF6FD;
  --ink:#10263D; --muted:#51667A; --line:#C9DDEE; --white:#fff; --sun:#FFD54A;
  --wa:#0E7A40; --wa-hover:#0A6334;
  --display:"Bricolage Grotesque","Figtree",system-ui,sans-serif;
  --body:"Figtree",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:400 17px/1.6 var(--body);color:var(--ink);background:linear-gradient(180deg,var(--sky-soft),var(--sky) 900px,var(--sky-soft));background-attachment:fixed}
[lang="zh-Hans"]{font-family:"Noto Sans SC",var(--body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
h1,h2,h3{font-family:var(--display);line-height:1.12;margin:0 0 .5em;letter-spacing:-.015em;font-weight:700}
h1{font-size:clamp(2.2rem,5vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.1rem)}
h3{font-size:1.3rem}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--bright);outline-offset:2px;border-radius:4px}
.wrap{width:min(1180px,100%);margin:0 auto;padding:0 20px}
.narrow{width:min(800px,100%)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:50;background:#fff;padding:8px 12px}

.promo{background:var(--blue-deep);text-align:center;font-size:.92rem;font-weight:600;padding:8px 14px}
.promo a{color:#fff;text-decoration:none}
.top{position:sticky;top:0;z-index:30;background:#fff;box-shadow:0 1px 0 var(--line)}
.top-in{display:flex;align-items:center;gap:28px;min-height:66px}
.logo img{width:96px;height:auto}
#nav{display:flex;gap:26px;align-items:center;margin-left:auto}
#nav a,#nav summary{color:var(--ink);text-decoration:none;font-weight:500;cursor:pointer}
#nav a:hover,#nav summary:hover{color:var(--blue)}
.dd{position:relative}.dd summary{list-style:none}.dd summary::-webkit-details-marker{display:none}
.dd summary::after{content:"";display:inline-block;width:7px;height:7px;margin:0 0 3px 8px;border:solid currentColor;border-width:0 2px 2px 0;transform:rotate(45deg)}
.dd ul{position:absolute;top:calc(100% + 18px);left:-16px;min-width:220px;background:#fff;border:1px solid var(--line);border-radius:12px;list-style:none;margin:0;padding:8px}
.dd li a{display:block;padding:7px 12px;border-radius:8px}.dd li a:hover{background:var(--sky-soft)}
.menu-btn{display:none;margin-left:auto;font:600 1rem var(--body);background:none;border:1px solid var(--line);border-radius:8px;padding:6px 14px;color:var(--ink)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 22px;border:0;border-radius:999px;font:700 1rem var(--body);text-decoration:none;cursor:pointer;transition:background .15s}
.btn-small{min-height:40px;padding:0 18px;font-size:.95rem}
.btn-blue{background:var(--blue);color:#fff}.btn-blue:hover{background:var(--blue-deep)}
.btn-wa{background:var(--wa);color:#fff}.btn-wa:hover{background:var(--wa-hover)}
.btn-line{background:#fff;color:var(--blue);box-shadow:inset 0 0 0 2px var(--blue)}.btn-line:hover{background:var(--sky-soft)}
.btn-white{background:#fff;color:var(--blue-deep)}.btn-white:hover{background:var(--sun)}
.wide{width:100%;margin-top:10px}

.hero{position:relative;background:var(--sky)}
.hero-img{width:100%;height:clamp(420px,60vw,640px);object-fit:cover;object-position:60% 50%}
.hero-in{position:absolute;inset:0;display:flex;align-items:center}
.hero-panel{background:rgba(255,255,255,.93);padding:30px 32px;border-radius:18px;max-width:430px}
.hero-panel h1{color:var(--blue-deep);margin-bottom:.3em}
.hero-panel p{font-size:1.1rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px}

.trust{background:#fff}
.trust-in{display:grid;grid-template-columns:repeat(3,1fr)}
.trust-in>div{padding:24px 26px;border-left:1px solid var(--line)}
.trust-in>div:first-child{border-left:0;padding-left:0}
.trust h2{font-size:1.15rem;margin-bottom:.25em}
.trust p{margin:0;color:var(--muted);font-size:.95rem}

.deal{background:linear-gradient(115deg,var(--blue-deep),var(--blue) 55%,var(--bright));color:#fff;overflow:hidden}
.deal-in{display:flex;justify-content:space-between;align-items:center;gap:30px;padding-top:40px;padding-bottom:40px;flex-wrap:wrap}
.deal-lead{font-weight:700;color:var(--sun);margin-bottom:.4em}
.deal-h{font-size:clamp(1.4rem,3vw,2rem);margin:0}
.deal-num{display:flex;align-items:baseline;gap:10px;margin:0;font:700 clamp(1.3rem,3vw,1.9rem) var(--display)}
.deal-num b{font-size:clamp(6rem,17vw,11rem);line-height:1;font-weight:800;color:var(--sun);letter-spacing:-.04em}
.deal-sub{font-weight:600;margin:0}
.deal-cta{max-width:340px}.deal-cta p{font-size:.84rem;margin:12px 0 0;opacity:.92}

.sec{padding:44px 0}
.sec-white{background:#fff}
.shelf-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:18px}
.shelf-head h2{margin:0}
.more{font-weight:700;text-decoration:none}.more:hover{text-decoration:underline}
.shelf+.shelf{padding-top:6px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{display:flex;flex-direction:column;background:#fff;border-radius:16px;overflow:hidden;text-decoration:none;color:var(--ink);box-shadow:0 0 0 1px var(--line);transition:box-shadow .15s}
.card:hover{box-shadow:0 0 0 2px var(--bright)}
.card-img{display:block;aspect-ratio:1;background:linear-gradient(180deg,#F5FAFE,#E7F2FB);padding:12px}
.card-img img{width:100%;height:100%;object-fit:contain;border-radius:8px}
.card-body{display:flex;flex-direction:column;align-items:flex-start;gap:5px;padding:14px 16px 16px;flex:1}
.card-name{font:700 1.14rem/1.2 var(--display)}
.card-model{font-size:.88rem;color:var(--muted);min-height:1.3em}
.pill{display:inline-block;background:var(--sky);color:var(--blue-deep);font-size:.8rem;font-weight:600;padding:2px 11px;border-radius:999px}
.price-box{margin-top:auto;width:100%;border:2px solid var(--bright);border-radius:12px;padding:8px 12px;font-size:.88rem;color:var(--muted)}
.card .pill{margin-bottom:8px}
.price-box b{font:800 1.5rem var(--display);color:var(--ink)}

.sec-faq{background:#fff}
.faq{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;font-size:1.05rem}
.faq p{color:var(--muted);max-width:68ch}

.sec-form{background:var(--blue-deep);color:#fff}
.form-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:start}
.form-note{font-size:.88rem;opacity:.9}
.wa-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:#fff;color:var(--ink);padding:24px;border-radius:16px}
.wa-form label{display:grid;gap:4px;font-weight:600;font-size:.94rem}
.wa-form input,.wa-form select,.wa-form textarea{font:400 1rem var(--body);padding:11px 12px;border:1px solid #8FA8BD;border-radius:8px;width:100%;background:#fff;color:var(--ink)}
.full{grid-column:1/-1}
.wa-form .form-note{margin:0;color:var(--muted)}

.foot{background:var(--ink);color:#D5E1EC;font-size:.95rem}
.foot-in{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding-top:40px;padding-bottom:26px}
.foot-logo{background:#fff;padding:6px 10px;border-radius:6px;width:116px;margin-bottom:12px}
.foot h2{font:700 1.05rem var(--body);color:#fff;letter-spacing:0}
.foot ul{list-style:none;margin:0;padding:0}.foot li{margin:5px 0}
.foot a:not(.btn){color:#D5E1EC}
.legal{font-size:.82rem;padding-bottom:88px;opacity:.85}
.wa-float{position:fixed;right:18px;bottom:18px;z-index:40;width:58px;height:58px;border-radius:50%;background:#25D366;color:#06351C;display:grid;place-items:center}
.wa-float svg{width:30px;height:30px}

.page-head{padding:38px 0 8px}
.page-head p{max-width:64ch;color:var(--muted)}
.crumb{font-size:.9rem;margin-bottom:10px}
.tools{display:grid;gap:14px;margin-top:10px}
#q{font:400 1rem var(--body);padding:12px 16px;border:1px solid #8FA8BD;border-radius:999px;max-width:420px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:600 .92rem var(--body);padding:7px 15px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.chip.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.empty{color:var(--muted)}

.pd{padding:20px 0 40px;background:#fff}
.pd-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:start}
.pd-gal{position:sticky;top:84px}
.pd-main{aspect-ratio:1;background:linear-gradient(180deg,#F5FAFE,#E7F2FB);border-radius:16px;padding:14px}
.pd-main img{width:100%;height:100%;object-fit:contain}
.thumbs{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:10px}
.thumbs button{padding:2px;border:2px solid transparent;border-radius:9px;background:var(--sky-soft);cursor:pointer;aspect-ratio:1}
.thumbs button.on{border-color:var(--blue)}
.thumbs img{width:100%;height:100%;object-fit:contain;border-radius:6px}
.pd-info h1{margin:10px 0 .1em}
.pd-model{color:var(--muted);margin-bottom:.8em}
.pd-bullets{margin:0 0 1em;padding-left:1.15em}.pd-bullets li{margin:2px 0}
.pd-from{font-size:1.05rem;margin-bottom:.8em}.pd-from b{font:800 2.5rem/1 var(--display);color:var(--blue-deep)}
.plans{border:0;padding:0;margin:0 0 10px;display:grid;gap:8px}
.plans legend{font-weight:700;margin-bottom:6px;padding:0}
.plan{cursor:pointer}.plan input{position:absolute;opacity:0}
.plan span{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 14px;border:2px solid var(--line);border-radius:12px}
.plan em{font:700 1.1rem var(--display)}.plan small{font:400 .82rem var(--body);color:var(--muted)}
.plan input:checked+span{border-color:var(--blue);background:var(--sky-soft)}
.plan input:focus-visible+span{outline:3px solid var(--bright);outline-offset:2px}
.outright{font-size:.95rem;color:var(--muted);margin:0 0 4px}
.fine{font-size:.82rem;color:var(--muted);margin:10px 0 0}

.sec-story{padding-top:30px}
.story{display:grid;grid-template-columns:1fr 1.2fr;gap:30px;align-items:center;background:#fff;border-radius:16px;padding:26px;margin-bottom:18px}
.story:nth-of-type(even) .story-pics{order:-1}
.story-many .story-pics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px}
.story-pics img{border-radius:10px;width:100%;object-fit:cover}
.story p{color:var(--muted);margin:0;max-width:60ch}
.filters{list-style:none;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}
.filters img{border-radius:8px;margin-bottom:4px}.filters b{display:block;font-size:.88rem;line-height:1.25}.filters small{color:var(--muted)}
.more-photos{background:#fff;border-radius:16px;padding:16px 22px}
.more-photos summary{cursor:pointer;font-weight:700}
.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;margin-top:14px}
.photo-grid img{border-radius:8px;aspect-ratio:1;object-fit:cover;width:100%}
.specs{width:100%;border-collapse:collapse}
.specs th,.specs td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.specs tbody th{width:38%;font-weight:600}
.specs thead th{background:var(--sky-soft)}
.tbl{overflow-x:auto;margin:0 0 1.2em}
.prose{max-width:800px}.prose h2{margin-top:1.3em;font-size:1.5rem}
.lead{font-size:1.15rem}
.art-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post{background:#fff;padding:22px;border-radius:16px;text-decoration:none;color:var(--ink);box-shadow:0 0 0 1px var(--line)}
.post:hover{box-shadow:0 0 0 2px var(--bright)}
.post small{color:var(--muted)}.post h2{font-size:1.3rem;margin:.4em 0}.post p{color:var(--muted);margin:0}
.stick{display:none}

@media (max-width:980px){
  .grid{grid-template-columns:repeat(3,1fr)}.posts{grid-template-columns:repeat(2,1fr)}
  .pd-grid,.form-grid{grid-template-columns:1fr;gap:24px}.pd-gal{position:static}
  .story{grid-template-columns:1fr}.story:nth-of-type(even) .story-pics{order:0}
  .foot-in{grid-template-columns:1fr 1fr}.foot-in>div:first-child{grid-column:1/-1}
}
@media (max-width:760px){
  body{font-size:16px}
  .menu-btn{display:block}
  .top-cta{display:none}
  #nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 16px;box-shadow:0 8px 16px rgba(16,38,61,.12)}
  #nav.open{display:flex}
  #nav>a,#nav summary{padding:10px 0}
  .dd ul{position:static;border:0;padding:0 0 0 12px}
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .posts{grid-template-columns:1fr}
  .card-body{padding:10px 12px 12px}.price-box{padding:6px 9px}.price-box b{font-size:1.25rem}
  .trust-in{grid-template-columns:1fr}.trust-in>div,.trust-in>div:first-child{padding:14px 0;border-left:0;border-top:1px solid var(--line)}.trust-in>div:first-child{border-top:0}
  .hero-img{height:300px}
  .hero-in{position:static;display:block;padding:0}
  .hero-panel{border-radius:0;max-width:none;background:#fff;padding:22px 20px}
  .wa-form{grid-template-columns:1fr;padding:18px}
  .sec{padding:30px 0}
  .stick{position:fixed;left:0;right:0;bottom:0;z-index:35;display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;padding:9px 16px;box-shadow:0 -1px 0 var(--line)}
  .stick b{font:800 1.3rem var(--display)}
  body:has(.stick) .wa-float{display:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.nw{white-space:nowrap}
.story-pics{border-radius:12px;overflow:hidden;padding:6px}
.photo-grid img{background:#33506B}
.thumbs img{background:#33506B0d}

.story:has(.filters){grid-template-columns:1fr}
.story:has(.filters) p{max-width:75ch}
.filters{grid-template-columns:repeat(auto-fill,minmax(150px,200px))}