/* SNX 璀璨智行 — site styles */
:root{
  --navy:#07122a;--navy-2:#0c1b3d;--ink:#0f172a;--ink-2:#334155;--muted:#5b6b82;
  --line:#e2e8f0;--bg:#ffffff;--bg-2:#f5f8fc;--card:#ffffff;
  --blue:#1c63e9;--blue-2:#0b4fd6;--cyan:#22d3ee;--amber:#f59e0b;
  --grad:linear-gradient(135deg,#1f6fff 0%,#22d3ee 100%);
  --shadow:0 10px 30px -12px rgba(7,18,42,.25);
  --r:16px;--r-sm:10px;--max:1200px;
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",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-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}

/* i18n */
html[lang="zh"] .en{display:none!important}
html[lang="en"] .zh{display:none!important}
html[lang="en"] body{letter-spacing:0}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section.tight{padding:56px 0}
.section.alt{background:var(--bg-2)}
.section.dark{background:var(--navy);color:#dbe4f3}
.section.dark h2,.section.dark h3{color:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}
.dark .eyebrow{color:var(--cyan)}
.h2{font-size:clamp(28px,3.4vw,40px)}
.lead{font-size:18px;color:var(--ink-2);max-width:720px}
.dark .lead{color:#b6c2d9}
.center{text-align:center}
.center .lead{margin:0 auto}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}.section{padding:64px 0}}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid transparent;transition:.2s;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px -8px rgba(31,111,255,.6)}
.btn-primary:hover{background:var(--blue-2);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-outline{border-color:var(--line);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-lg{padding:16px 28px;font-size:16px}

/* Header */
.topbar{background:var(--navy);color:#9fb0cc;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a:hover{color:#fff}
.topbar .l{display:flex;gap:18px}
.topbar .l span{display:inline-flex;align-items:center;gap:6px}
.topbar svg{width:14px;height:14px}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo img{height:40px;width:auto}
nav.main{display:flex;gap:4px}
nav.main a{padding:10px 14px;border-radius:10px;font-weight:600;font-size:15px;color:var(--ink-2);transition:.2s}
nav.main a:hover{background:var(--bg-2);color:var(--ink)}
nav.main a.active{color:var(--blue);background:rgba(31,111,255,.08)}
.hdr-right{display:flex;align-items:center;gap:12px}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:#fff}
.lang a{display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;padding:5px 11px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);text-decoration:none}
.lang a.on{background:var(--navy);color:#fff}
.burger{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center}
.burger svg{width:22px;height:22px}
@media(max-width:980px){
  nav.main{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  nav.main.open{display:flex}
  .burger{display:inline-flex}
  .hdr-cta{display:none}
  .topbar .l span:nth-child(3){display:none}
}
@media(max-width:640px){.topbar .r{display:none}}

/* Hero */
.hero{position:relative;background:var(--navy);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 500px at 85% 10%,rgba(31,111,255,.45),transparent 60%),
  radial-gradient(700px 400px at 10% 90%,rgba(34,211,238,.25),transparent 60%)}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%)}
.hero .wrap{position:relative;z-index:1}
.hero-home{padding:110px 0 80px}
.hero-home .grid{grid-template-columns:1.15fr .85fr;align-items:center;gap:48px}
@media(max-width:980px){.hero-home .grid{grid-template-columns:1fr}.hero-home{padding:72px 0 56px}}
.hero h1{font-size:clamp(34px,5vw,60px);font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.hero h1 .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{color:#b6c2d9;font-size:18px;margin-bottom:32px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-size:13px;color:#cfdaee;margin-bottom:22px}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.25)}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:26px;backdrop-filter:blur(10px)}
.hero-card h2{font-size:15px;color:#9fb0cc;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:18px}
.hero-card ul li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-top:1px solid rgba(255,255,255,.08);font-size:15px;color:#e2e8f0}
.hero-card ul li:first-child{border-top:0}
.hero-card .dot{flex:none;width:28px;height:28px;border-radius:8px;background:var(--grad);display:grid;place-items:center;color:#06142e;font-weight:800;font-size:13px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:48px}
.stat{padding:22px 24px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.stat b{display:block;font-size:40px;font-weight:800;letter-spacing:-.02em;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{display:block;margin-top:8px;color:#b6c2d9;font-size:14px}
@media(max-width:640px){.stats{grid-template-columns:1fr 1fr}.stat b{font-size:32px}}

/* Page hero (inner pages) */
.hero-page{padding:84px 0 72px}
.hero-page h1{font-size:clamp(32px,4.4vw,52px)}
.hero-page .lead{margin-bottom:0}
.crumbs{font-size:13px;color:#9fb0cc;margin-bottom:18px;display:flex;gap:8px;align-items:center}
.crumbs a:hover{color:#fff}
.subnav{position:sticky;top:72px;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;gap:6px;overflow-x:auto;height:54px;align-items:center;scrollbar-width:none}
.subnav a{padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap}
.subnav a:hover,.subnav a.on{background:rgba(31,111,255,.1);color:var(--blue)}

/* Cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:.25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.card .ic{width:48px;height:48px;border-radius:12px;background:rgba(31,111,255,.1);color:var(--blue);display:grid;place-items:center;margin-bottom:18px}
.card .ic svg{width:24px;height:24px}
.card h3{font-size:19px}
.card p{color:var(--ink-2);font-size:15px;margin:0}
.card.img{padding:0}
.card.img .ph{aspect-ratio:16/10;overflow:hidden;background:#dfe7f3}
.card.img .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card.img:hover .ph img{transform:scale(1.05)}
.card.img .bd{padding:24px}
.more{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:600;font-size:14px;margin-top:14px}
.more svg{width:16px;height:16px;transition:.2s}
.more:hover svg{transform:translateX(3px)}

/* Challenge / solution split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.panel{border-radius:20px;padding:34px;border:1px solid var(--line)}
.panel.pain{background:#fff}
.panel.gain{background:var(--navy);color:#dbe4f3;border-color:transparent}
.panel h3{font-size:22px;margin-bottom:18px}
.panel.gain h3{color:#fff}
.panel li{display:flex;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:15px}
.panel.gain li{border-color:rgba(255,255,255,.1)}
.panel li:first-of-type{border-top:0}
.panel li svg{flex:none;width:20px;height:20px;margin-top:2px}
.panel.pain li svg{color:var(--amber)}
.panel.gain li svg{color:var(--cyan)}

/* Flow */
.flow{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:12px}
.flow span{padding:8px 14px;border-radius:10px;background:var(--bg-2);border:1px solid var(--line);font-size:14px;font-weight:600}
.flow i{color:var(--muted)}

/* Cases */
.filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:0 0 36px}
.filters button{border:1px solid var(--line);background:#fff;padding:9px 18px;border-radius:999px;font-weight:600;font-size:14px;color:var(--ink-2);transition:.2s}
.filters button.on,.filters button:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.case{display:grid;grid-template-columns:1fr 1.25fr;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.25s}
.case:hover{box-shadow:var(--shadow)}
.case .ph{min-height:260px;background:#dfe7f3;position:relative}
.case .ph img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.case .tag{position:absolute;top:16px;left:16px;background:rgba(7,18,42,.85);color:#fff;font-size:12px;font-weight:600;padding:6px 12px;border-radius:999px;backdrop-filter:blur(6px)}
.case .bd{padding:30px 32px}
.case .bd h2{font-size:22px;margin-bottom:6px}
.case .reg{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.06em;margin-bottom:18px}
.case dl{margin:0;display:grid;gap:12px}
.case dt{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin-bottom:3px}
.case dd{margin:0;font-size:15px;color:var(--ink-2)}
.case .kpi{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.case .kpi span{background:var(--bg-2);border:1px solid var(--line);padding:6px 12px;border-radius:8px;font-size:13px;font-weight:600}
.case .kpi b{color:var(--blue)}
@media(max-width:860px){.case{grid-template-columns:1fr}.case .ph{min-height:220px}}
.case[hidden]{display:none}

/* Timeline */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:22px;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.tl{position:relative;padding-top:52px}
.tl::before{content:"";position:absolute;top:14px;left:0;width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--blue);box-shadow:0 0 0 6px rgba(31,111,255,.12)}
.tl b{display:block;font-size:26px;font-weight:800;color:var(--blue);letter-spacing:-.02em}
.tl h3{font-size:17px;margin:6px 0 4px}
.tl p{font-size:14px;color:var(--ink-2);margin:0}
.tl img{height:64px;width:auto;margin-bottom:12px;border-radius:8px;object-fit:contain}
@media(max-width:980px){.timeline{grid-template-columns:1fr;gap:0}.timeline::before{left:8px;right:auto;top:0;bottom:0;width:2px;height:auto;background:linear-gradient(180deg,var(--blue),var(--cyan))}.tl{padding:0 0 30px 40px}.tl::before{left:0;top:4px}}

/* Values */
.value{display:flex;gap:18px;align-items:flex-start}
.value img{width:52px;height:52px;flex:none}
.value h3{font-size:18px;margin-bottom:4px}
.value p{color:var(--ink-2);font-size:15px;margin:0}

/* Bars */
.bar{margin-bottom:18px}
.bar .t{display:flex;justify-content:space-between;font-size:14px;font-weight:600;margin-bottom:8px}
.bar .tr{height:8px;background:var(--line);border-radius:99px;overflow:hidden}
.bar .tr i{display:block;height:100%;background:var(--grad);border-radius:99px;width:0;transition:width 1.4s cubic-bezier(.2,.7,.2,1)}

/* Team roles */
.role{display:flex;gap:14px;padding:18px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.role .n{flex:none;width:36px;height:36px;border-radius:10px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px}
.role h3{font-size:16px;margin-bottom:4px}
.role p{font-size:14px;color:var(--ink-2);margin:0}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;gap:14px}
.gallery img{width:100%;height:100%;object-fit:cover;border-radius:14px}
.gallery .tall{grid-row:span 2}
.gallery .wide{grid-column:span 2}
@media(max-width:800px){.gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}}

/* Service tiles */
.tile{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:5/3;background:#0c1b3d}
.tile img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:.5s}
.tile:hover img{transform:scale(1.06);opacity:1}
.tile span{position:absolute;left:0;right:0;bottom:0;padding:40px 16px 14px;color:#fff;font-weight:700;font-size:15px;background:linear-gradient(transparent,rgba(7,18,42,.9))}
.feature{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature.rev>div:first-child{order:2}
@media(max-width:900px){.feature{grid-template-columns:1fr}.feature.rev>div:first-child{order:0}}
.feature img.ph{border-radius:20px;box-shadow:var(--shadow)}
.checks li{display:flex;gap:12px;padding:9px 0;font-size:15.5px;color:var(--ink-2)}
.checks li svg{flex:none;width:22px;height:22px;color:var(--blue);margin-top:1px}
.checks b{color:var(--ink)}

/* Map */
.map-wrap{background:var(--navy-2);border-radius:24px;padding:28px;border:1px solid rgba(255,255,255,.08)}
.map-svg{width:100%;height:auto;display:block}
.sites{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.site{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px 16px}
.site b{display:block;color:#fff;font-size:15px}
.site span{color:#9fb0cc;font-size:13px}
.site em{float:right;font-style:normal;color:var(--cyan);font-weight:700}
@media(max-width:800px){.sites{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.sites{grid-template-columns:1fr}}

/* News */
.post{display:grid;grid-template-columns:1fr;gap:0}
.post .meta{font-size:13px;color:var(--muted);margin-bottom:8px;display:flex;gap:10px}
.post .meta b{color:var(--blue);font-weight:600}
.post h3{font-size:19px;line-height:1.35}
.dl{display:flex;align-items:center;gap:18px;padding:22px 26px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.dl .ic{width:52px;height:52px;border-radius:12px;background:rgba(245,158,11,.12);color:var(--amber);display:grid;place-items:center;flex:none}
.dl .ic svg{width:26px;height:26px}
.dl h3{font-size:16px;margin:0 0 2px}
.dl p{margin:0;font-size:13px;color:var(--muted)}
.dl .btn{margin-left:auto}
@media(max-width:600px){.dl{flex-wrap:wrap}.dl .btn{margin-left:0;width:100%;justify-content:center}}
.blog-list li{display:flex;gap:16px;align-items:center;padding:14px 0;border-top:1px solid var(--line)}
.blog-list li:first-child{border-top:0}
.blog-list img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex:none}
.blog-list time{font-size:12px;color:var(--muted);display:block;margin-bottom:3px}
.blog-list h3{font-size:15.5px;margin:0;line-height:1.4}

/* Contact */
.form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:600px){.form .row{grid-template-columns:1fr}.form{padding:24px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;font-size:15px;background:#fbfcfe;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 4px rgba(31,111,255,.12);background:#fff}
.field textarea{min-height:120px;resize:vertical}
.form .note{font-size:13px;color:var(--muted)}
.form .ok,.form .err{display:none;padding:14px 16px;border-radius:10px;font-size:14px;margin-top:12px}
.form .ok{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}
.form .err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.contact-side .item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line)}
.contact-side .item:first-child{border-top:0}
.contact-side .item svg{width:22px;height:22px;color:var(--blue);flex:none;margin-top:2px}
.contact-side .item b{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-bottom:2px}
.contact-side .item span{font-size:16px;font-weight:600}
.qr{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.qr div{text-align:center;background:var(--bg-2);border-radius:14px;padding:16px;border:1px solid var(--line)}
.qr img{width:120px;height:120px;margin:0 auto 8px;border-radius:8px}
.qr span{font-size:13px;color:var(--ink-2);font-weight:600}
.benefits li{display:flex;gap:10px;align-items:center;padding:8px 0;font-size:15px;color:var(--ink-2)}
.benefits li svg{width:20px;height:20px;color:var(--blue)}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:12px;overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:600;font-size:16px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--blue);font-weight:400;flex:none;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 22px 20px;color:var(--ink-2);font-size:15px}

/* Partners */
.partners{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.partners div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 22px;display:grid;place-items:center;min-width:140px;height:72px}
.partners img{height:30px;width:auto;filter:grayscale(1);opacity:.75;transition:.2s}
.partners div:hover img{filter:none;opacity:1}

/* CTA band */
.cta{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 300px at 80% 50%,rgba(31,111,255,.5),transparent 60%)}
.cta .wrap{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;padding-top:64px;padding-bottom:64px;flex-wrap:wrap}
.cta h2{font-size:clamp(24px,3vw,34px);margin-bottom:6px}
.cta p{color:#b6c2d9;margin:0}

/* Footer */
footer.site{background:#040b1c;color:#9fb0cc;padding:64px 0 28px;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
@media(max-width:900px){footer .cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){footer .cols{grid-template-columns:1fr}}
footer h3{color:#fff;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:16px}
footer li{margin-bottom:10px}
footer a:hover{color:#fff}
footer .brand img{height:40px;width:auto;margin-bottom:16px;filter:brightness(0) invert(1)}
footer .brand p{max-width:360px}
footer .qrs{display:flex;gap:16px}
footer .qrs div{text-align:center;font-size:12px}
footer .qrs img{width:92px;height:92px;border-radius:8px;margin-bottom:6px;background:#fff;padding:4px}
footer .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#6f819f}

/* Floating contact */
.float{position:fixed;right:18px;bottom:22px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float a{width:50px;height:50px;border-radius:14px;background:var(--navy);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);position:relative;transition:.2s}
.float a:hover{background:var(--blue)}
.float a svg{width:22px;height:22px}
.float .wx:hover .pop{opacity:1;transform:translateX(0);pointer-events:auto}
.float .pop{position:absolute;right:62px;bottom:0;background:#fff;border-radius:12px;padding:10px;box-shadow:var(--shadow);opacity:0;transform:translateX(8px);transition:.2s;pointer-events:none;border:1px solid var(--line)}
.float .pop img{width:120px;height:120px}
.float .pop span{display:block;text-align:center;font-size:12px;color:var(--ink-2);margin-top:6px}

/* Reveal */
.js .rv{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js .rv.in{opacity:1;transform:none}



/* ================= UX pass (ui-ux-pro-max) ================= */
/* Accessibility: focus, skip link */
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.hero :focus-visible,.dark :focus-visible,.cta :focus-visible,footer.site :focus-visible,.topbar :focus-visible{outline-color:#67e8f9}
.skip{position:absolute;left:12px;top:-64px;z-index:200;background:var(--navy);color:#fff;padding:12px 18px;border-radius:10px;font-weight:600;transition:top .2s}
.skip:focus{top:12px}
main:focus{outline:none}
.faq summary:focus-visible{outline-offset:-3px}

/* Touch & interaction */
a,button,summary,label,select{touch-action:manipulation}
.btn:active{transform:scale(.98)}
.filters button:active,.lang a:active{transform:scale(.97)}
.filters button{min-height:44px}
.subnav a{min-height:44px;display:inline-flex;align-items:center}
.lang a{min-height:32px;min-width:40px}
.burger{width:44px;height:44px}
.faq summary{min-height:56px}
footer li a{display:inline-block;padding:4px 0}
.btn.loading{position:relative;pointer-events:none;opacity:.85}
.btn.loading::after{content:"";width:16px;height:16px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Layout: anchors clear the sticky header + sub-nav */
section[id],article[id]{scroll-margin-top:140px}

/* Typography: calmer wrapping */
h1,h2,h3{text-wrap:balance}
p,li{text-wrap:pretty}

/* Forms: inline errors + summary */
.fe{color:#b42318;font-size:13px;margin-top:6px;display:flex;gap:6px;align-items:flex-start}
.fe::before{content:"!";flex:none;width:16px;height:16px;border-radius:50%;background:#b42318;color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center;margin-top:2px}
.fe[hidden]{display:none}
.field input[aria-invalid="true"],.field select[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#b42318;background:#fffafa}
.summary{border:1px solid #fecaca;background:#fef2f2;color:#7f1d1d;border-radius:12px;padding:14px 18px;margin-bottom:18px;font-size:14px}
.summary[hidden]{display:none}
.summary strong{display:block;margin-bottom:6px}
.summary ul{list-style:disc;padding-left:18px}
.summary a{text-decoration:underline;font-weight:600}
.form .ok:focus,.form .err:focus{outline-offset:2px}

/* Floating contact: tap/keyboard operable WeChat popover */
.float .wxwrap{position:relative}
.float button.wx{width:50px;height:50px;border:0;border-radius:14px;background:var(--navy);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);cursor:pointer;transition:background .2s}
.float button.wx:hover,.float button.wx[aria-expanded="true"]{background:var(--blue)}
.float button.wx svg{width:22px;height:22px}
.float .pop{visibility:hidden}
.float .wxwrap.open .pop{opacity:1;transform:none;pointer-events:auto;visibility:visible}
@media(hover:hover){.float .wxwrap:hover .pop{opacity:1;transform:none;pointer-events:auto;visibility:visible}}

/* Mobile */
@media(max-width:980px){.lang a{min-height:44px;min-width:44px}}
@media(max-width:900px){.map-svg text{display:none}}
@media(max-width:640px){
  .topbar{display:none}
  header.site .wrap{height:64px;gap:10px}
  .logo img{height:32px}
  nav.main{top:64px}
  .subnav{top:64px}
  section[id],article[id]{scroll-margin-top:128px}
  .float button.wx,.float a{width:46px;height:46px}
  .float a[aria-label="Email"]{display:none}
  footer.site{padding-bottom:96px}
  .hero-home{padding:56px 0 48px}
}

/* Reduced motion */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .card:hover,.card.img:hover .ph img,.tile:hover img{transform:none}
}

/* Article pages */
.post-meta{display:flex;gap:12px;align-items:center;font-size:13px;color:#9fb0cc;margin-bottom:14px}
.post-meta b{color:#7fb0ff;font-weight:600}
.post-title{max-width:880px;font-size:clamp(26px,3.6vw,42px);line-height:1.3;text-wrap:balance}
.post-page .wrap{max-width:860px}
.post-cover{border-radius:var(--r);overflow:hidden;margin-bottom:32px;background:#dfe7f3;aspect-ratio:16/8}
.post-cover img{width:100%;height:100%;object-fit:cover}
.post-note{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:10px 14px;font-size:14px;color:var(--muted);margin-bottom:24px}
.post-body{font-size:17px;line-height:1.9;color:var(--ink-2)}
.post-body p{margin:0 0 1.1em}
.post-body h2{font-size:clamp(21px,2.4vw,26px);line-height:1.4;color:var(--ink);margin:2em 0 .7em;padding-left:14px;border-left:4px solid var(--blue);scroll-margin-top:140px}
.post-body h3{font-size:20px;line-height:1.45;color:var(--ink);margin:1.7em 0 .6em}
.post-body h4{font-size:17.5px;line-height:1.5;color:var(--ink);margin:1.4em 0 .5em}
.post-body ul,.post-body ol{margin:0 0 1.2em;padding-left:1.4em}
.post-body li{margin:.35em 0}
.post-body strong{color:var(--ink)}
.post-body blockquote{margin:1.2em 0;padding:12px 18px;border-left:4px solid var(--cyan);background:var(--bg-2);border-radius:0 var(--r-sm) var(--r-sm) 0}
.post-body img{max-width:100%;height:auto;border-radius:var(--r-sm)}
.post-body .tbl{overflow-x:auto;margin:1.2em 0}
.post-body table{border-collapse:collapse;width:100%;font-size:15px}
.post-body th,.post-body td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.post-cta{margin-top:48px;padding:32px;border-radius:var(--r);background:var(--navy);color:#dbe4f3;text-align:center}
.post-cta h2{color:#fff;font-size:24px;margin:0 0 8px}
.post-cta p{color:#b6c2d9;margin:0 0 18px}
html[lang="zh"] .post-note{display:none}
@media (max-width:640px){.post-body{font-size:16px;line-height:1.85}.post-cta{padding:24px 18px}}

.post-fig{margin:1.5rem 0}.post-fig img{width:100%;height:auto;border-radius:8px}

.split>*,.g2>*,.g3>*,.g4>*,.feature>*,.case>*{min-width:0}.contact-side .item span,.contact-side .item div{overflow-wrap:anywhere}