/* Shandong Keyuan — site styles. Single committed light theme with dark chapters. */
:root{
  --bg:#fbfbfd;--bg-2:#ffffff;--tint:#f5f5f7;--ink:#1d1d1f;--ink-2:#6e6e73;--ink-3:#86868b;--line:#d2d2d7;--line-2:#e8e8ed;
  --dark:#000000;--dark-2:#161617;--dark-3:#1d1d1f;--dark-ink:#f5f5f7;--dark-ink-2:#a1a1a6;--dark-line:#333336;
  --orange:#ee7331;--orange-2:#ff8a4c;--blue:#2b7bc4;--blue-2:#0071e3;
  --sans:"Geist",-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"Geist Mono","SF Mono",Menlo,Consolas,monospace;
  --max:1120px;--wide:1440px;--gutter:clamp(20px,5vw,64px);
  --ease:cubic-bezier(.2,.7,.2,1);--dur:.7s;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.47;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,picture{max-width:100%;display:block}
img{height:auto}
a{color:var(--blue-2);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue-2);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(40px,6vw,80px);letter-spacing:-.03em}
h2{font-size:clamp(32px,4.4vw,56px);letter-spacing:-.028em}
h3{font-size:clamp(21px,2vw,28px);letter-spacing:-.02em;line-height:1.2}
h4{font-size:17px;letter-spacing:-.01em}
p{margin:0}
.lead{font-size:clamp(19px,1.8vw,24px);line-height:1.4;color:var(--ink-2);letter-spacing:-.01em;max-width:34em}
.sub{font-size:clamp(17px,1.4vw,21px);line-height:1.45;color:var(--ink-2);max-width:38em}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--orange);margin-bottom:16px}
.muted{color:var(--ink-2)}
.mono{font-family:var(--mono)}
.tnum{font-variant-numeric:tabular-nums}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.wrap-wide{max-width:var(--wide);margin-inline:auto;padding-inline:var(--gutter)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--blue-2);color:#fff;font-weight:500;font-size:17px;padding:12px 22px;border-radius:980px;border:0;cursor:pointer;transition:background .25s var(--ease),transform .25s var(--ease)}
.btn:hover{background:#0077ed;text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-orange{background:var(--orange)}
.btn-orange:hover{background:var(--orange-2)}
.btn-ghost{background:transparent;color:var(--blue-2);padding-inline:6px}
.btn-ghost:hover{background:transparent;text-decoration:underline}
.btn-ghost .arrow{transition:transform .25s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{background:#f0f0f2}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.on-dark .btn-outline{color:#fff;border-color:rgba(255,255,255,.7)}
.on-dark .btn-outline:hover{background:#fff;color:var(--ink)}
.link{color:var(--blue-2);font-weight:500;display:inline-flex;align-items:center;gap:6px}
.link .arrow{transition:transform .25s var(--ease)}
.link:hover .arrow{transform:translateX(3px)}
.on-dark .link{color:#2997ff}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;height:52px;z-index:50;background:rgba(251,251,253,.72);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08);transition:transform .45s var(--ease),background .3s}
.nav.hide{transform:translateY(-100%)}
.nav-in{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter);height:100%;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:15px;letter-spacing:-.01em;margin-right:auto}
.brand:hover{text-decoration:none}
.brand img{width:28px;height:28px}
.nav-links{display:flex;gap:28px;margin:0;padding:0;list-style:none}
.nav-links a{color:var(--ink);font-size:14px;opacity:.8;transition:opacity .2s}
.nav-links a:hover{opacity:1;text-decoration:none}
.nav-links a[aria-current]{opacity:1;font-weight:500}
.nav-cta{font-size:13px;padding:7px 14px}
.nav-toggle{display:none;width:40px;height:40px;background:none;border:0;cursor:pointer;position:relative;margin-right:-8px}
.nav-toggle span{position:absolute;left:11px;width:18px;height:1.5px;background:var(--ink);transition:transform .3s var(--ease),top .3s var(--ease),opacity .2s}
.nav-toggle span:nth-child(1){top:15px}.nav-toggle span:nth-child(2){top:20px}.nav-toggle span:nth-child(3){top:25px}
body.menu-open .nav-toggle span:nth-child(1){top:20px;transform:rotate(45deg)}
body.menu-open .nav-toggle span:nth-child(2){opacity:0}
body.menu-open .nav-toggle span:nth-child(3){top:20px;transform:rotate(-45deg)}
@media (max-width:820px){
  .nav-links{position:fixed;inset:52px 0 0 0;background:rgba(251,251,253,.96);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);flex-direction:column;gap:0;padding:16px var(--gutter);opacity:0;pointer-events:none;transform:translateY(-8px);transition:opacity .3s var(--ease),transform .3s var(--ease)}
  body.menu-open .nav-links{opacity:1;pointer-events:auto;transform:none}
  body.menu-open{overflow:hidden}
  .nav-links a{font-size:24px;font-weight:500;padding:14px 0;border-bottom:1px solid var(--line-2);display:block;opacity:1}
  .nav-cta{display:none}
  .nav-toggle{display:block}
}
/* page sub-nav */
.subnav{position:sticky;top:52px;z-index:40;background:rgba(251,251,253,.85);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}
.subnav-in{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter);height:48px;display:flex;align-items:center;gap:24px;overflow-x:auto;scrollbar-width:none}
.subnav-in::-webkit-scrollbar{display:none}
.subnav strong{font-size:17px;font-weight:600;letter-spacing:-.01em;margin-right:auto;white-space:nowrap}
.subnav a{color:var(--ink);font-size:13px;opacity:.75;white-space:nowrap;padding:6px 0;border-bottom:1.5px solid transparent;transition:opacity .2s,border-color .2s}
.subnav a:hover{opacity:1;text-decoration:none}
.subnav a.active{opacity:1;border-color:var(--ink)}
@media (max-width:820px){.subnav strong{display:none}.subnav-in{gap:20px}}

/* sections */
main{padding-top:52px}
.chapter{padding-block:clamp(72px,10vw,140px)}
.chapter-tight{padding-block:clamp(48px,7vw,96px)}
.on-dark{background:var(--dark);color:var(--dark-ink)}
.on-dark .lead,.on-dark .sub,.on-dark .muted{color:var(--dark-ink-2)}
.on-dark h1,.on-dark h2,.on-dark h3{color:#fff}
.on-tint{background:var(--tint)}
.on-dark2{background:var(--dark-2);color:var(--dark-ink)}
.on-dark2 .lead,.on-dark2 .sub,.on-dark2 .muted{color:var(--dark-ink-2)}
.center{text-align:center}
.center .lead,.center .sub{margin-inline:auto}
.head{margin-bottom:clamp(32px,5vw,64px)}
.head h2{margin-bottom:16px}
.divider{height:1px;background:var(--line-2);margin:0}
.on-dark .divider{background:var(--dark-line)}

/* reveal */
.js .rv{opacity:0;transform:translateY(24px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .rv-d1{transition-delay:.08s}.js .rv-d2{transition-delay:.16s}.js .rv-d3{transition-delay:.24s}.js .rv-d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none;transition:none}
  *{animation-duration:.001s!important;transition-duration:.001s!important}
}

/* hero */
.hero{padding-block:clamp(72px,11vw,150px) clamp(48px,6vw,80px);text-align:center}
.hero h1{max-width:18ch;margin-inline:auto}
.hero .lead{margin:24px auto 0}
.hero .cta{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin-top:32px;align-items:center}
.js .hero .a1,.js .hero .a2,.js .hero .a3{animation:rise 1s var(--ease) both}
.js .hero .a2{animation-delay:.12s}.js .hero .a3{animation-delay:.24s}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.hero-media{max-width:var(--wide);margin:clamp(40px,6vw,72px) auto 0;padding-inline:var(--gutter)}
.hero-media .frame{border-radius:clamp(16px,2vw,28px);overflow:hidden;aspect-ratio:21/9;background:#e9e9ee;position:relative;isolation:isolate}
.hero-media img{width:100%;height:100%;object-fit:cover;will-change:transform;transform:scale(1.06)}
.js .hero-media .frame{animation:rise 1.1s var(--ease) .3s both}
@media (max-width:640px){.hero-media .frame{aspect-ratio:4/3}}
.caption{font-size:13px;color:var(--ink-3);margin-top:12px;text-align:center}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stats div{border-top:1px solid var(--line);padding-top:20px}
.stats b{display:block;font-size:clamp(40px,5vw,64px);font-weight:600;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.stats b small{font-size:.45em;font-weight:500;letter-spacing:-.01em;margin-left:4px;color:var(--ink-2)}
.stats>div>span{display:block;margin-top:10px;color:var(--ink-2);font-size:15px;line-height:1.4}
.on-dark .stats div{border-color:var(--dark-line)}
.on-dark .stats>div>span,.on-dark .stats b small{color:var(--dark-ink-2)}
@media (max-width:820px){.stats{grid-template-columns:1fr 1fr}}

/* bento / cards */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{background:var(--bg-2);border-radius:24px;overflow:hidden;position:relative;color:inherit;display:flex;flex-direction:column;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.card:hover{text-decoration:none;transform:translateY(-4px);box-shadow:0 30px 60px -30px rgba(0,0,0,.25)}
.card .media{aspect-ratio:16/10;overflow:hidden;background:#fff}
.card .media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.card:hover .media img{transform:scale(1.04)}
.card .media.contain img{object-fit:contain;padding:8%}
.card .body{padding:28px 28px 32px;display:flex;flex-direction:column;gap:10px;flex:1}
.card .body p{color:var(--ink-2);font-size:15px}
.card .body .link{margin-top:auto;padding-top:8px}
.card.dark{background:var(--dark-3);color:var(--dark-ink)}
.card.dark .body p{color:var(--dark-ink-2)}
.card.dark h3{color:#fff}
.card.dark .media{background:#000}
.span-6{grid-column:span 6}.span-4{grid-column:span 4}.span-8{grid-column:span 8}.span-12{grid-column:span 12}
@media (max-width:820px){.span-6,.span-4,.span-8{grid-column:span 12}}

/* process rail (home) */
.rail{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px var(--gutter) 24px;margin-inline:calc(-1*var(--gutter));scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail li{list-style:none;flex:0 0 250px;scroll-snap-align:start;background:var(--dark-3);border-radius:20px;padding:22px 22px 26px;min-height:190px;display:flex;flex-direction:column;gap:8px;position:relative;transition:background .3s}
.rail li:hover{background:#2a2a2d}
.rail li i{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--orange);letter-spacing:.1em}
.rail li b{font-size:19px;font-weight:600;letter-spacing:-.015em;color:#fff;margin-top:auto}
.rail li span{font-size:14px;color:var(--dark-ink-2);line-height:1.4}
.rail-ctl{display:flex;gap:10px;justify-content:flex-end;margin-top:4px}
.rail-ctl button{width:40px;height:40px;border-radius:50%;border:1px solid var(--dark-line);background:var(--dark-2);color:#fff;cursor:pointer;font-size:18px;transition:background .2s}
.rail-ctl button:hover{background:#2a2a2d}

/* feature rows */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px);align-items:center}
.feature.flip .feature-text{order:2}
.feature-text h2{margin-bottom:16px}
.feature-text .sub{margin-bottom:24px}
.feature-media{border-radius:24px;overflow:hidden;aspect-ratio:4/3;background:var(--tint)}
.feature-media img{width:100%;height:100%;object-fit:cover}
@media (max-width:820px){.feature{grid-template-columns:1fr}.feature.flip .feature-text{order:0}}

/* spec table */
.spec{width:100%;border-collapse:collapse;font-size:15px}
.spec th,.spec td{text-align:left;vertical-align:top;padding:14px 0;border-bottom:1px solid var(--line-2)}
.spec th{font-weight:500;width:36%;padding-right:24px;color:var(--ink)}
.spec thead th{width:auto;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.spec td{color:var(--ink-2);font-variant-numeric:tabular-nums}
.spec td b{color:var(--ink);font-weight:600}
.on-dark .spec th{color:#fff}.on-dark .spec td{color:var(--dark-ink-2)}.on-dark .spec td b{color:#fff}.on-dark .spec th,.on-dark .spec td{border-color:var(--dark-line)}
.table-wrap{overflow-x:auto}

/* sticky scroll process (capabilities) */
.scrolly{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,96px);align-items:start}
.scrolly-media{position:sticky;top:120px;border-radius:24px;overflow:hidden;aspect-ratio:4/3;background:#000}
.scrolly-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .8s var(--ease),transform 1.2s var(--ease);transform:scale(1.04)}
.scrolly-media img.active{opacity:1;transform:none}
.scrolly-steps{display:flex;flex-direction:column}
.step{padding:clamp(24px,4vw,48px) 0;border-top:1px solid var(--dark-line);opacity:.35;transition:opacity .5s var(--ease)}
.step.active{opacity:1}
.step:last-child{border-bottom:1px solid var(--dark-line)}
.step .eyebrow{margin-bottom:10px}
.step h2{margin-bottom:12px;font-size:clamp(24px,2.6vw,34px)}
.step p{color:var(--dark-ink-2);max-width:44ch}
.step .spec{margin-top:18px}
@media (max-width:820px){.scrolly{grid-template-columns:1fr}.scrolly-media{position:relative;top:0;margin-bottom:16px}.step{opacity:1}}

/* segmented control + product grid */
.seg{display:inline-flex;background:var(--line-2);border-radius:980px;padding:3px;position:relative}
.seg button{position:relative;z-index:1;border:0;background:transparent;padding:8px 18px;border-radius:980px;font-size:14px;font-weight:500;cursor:pointer;color:var(--ink);transition:color .2s}
.seg button[aria-pressed="true"]{color:var(--ink)}
.seg .pill{position:absolute;top:3px;bottom:3px;left:3px;width:0;background:#fff;border-radius:980px;box-shadow:0 1px 3px rgba(0,0,0,.12);transition:left .35s var(--ease),width .35s var(--ease)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.prod{background:#fff;border-radius:22px;overflow:hidden;text-align:left;border:0;padding:0;cursor:pointer;display:flex;flex-direction:column;transition:transform .5s var(--ease),box-shadow .5s var(--ease),opacity .4s var(--ease)}
.prod:hover{transform:translateY(-4px);box-shadow:0 30px 60px -30px rgba(0,0,0,.3)}
.prod .media{aspect-ratio:4/3;background:#fff;display:grid;place-items:center;padding:10%;overflow:hidden}
.prod .media img{width:100%;height:100%;object-fit:contain;transition:transform 1s var(--ease)}
.prod:hover .media img{transform:scale(1.05)}
.prod .body{padding:20px 22px 24px;border-top:1px solid var(--line-2);display:flex;flex-direction:column;gap:6px}
.prod .body small{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.prod .body h3{font-size:19px}
.prod .body p{font-size:14px;color:var(--ink-2)}
.prod.hidden{display:none}
.on-tint .prod{box-shadow:0 1px 2px rgba(0,0,0,.04)}
@media (max-width:900px){.prod-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.prod-grid{grid-template-columns:1fr}}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:24px}
.lb.open{display:flex}
.lb .scrim{position:absolute;inset:0;background:rgba(0,0,0,.6);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);animation:fade .3s both}
.lb .panel{position:relative;background:#fff;border-radius:28px;max-width:960px;width:100%;max-height:calc(100vh - 48px);overflow:auto;display:grid;grid-template-columns:1fr 1fr;animation:pop .45s var(--ease) both}
.lb .panel .media{background:#fff;display:grid;place-items:center;padding:8%;min-height:320px}
.lb .panel .media img{width:100%;height:auto;max-height:420px;object-fit:contain}
.lb .panel .body{padding:36px 36px 40px;display:flex;flex-direction:column;gap:14px}
.lb .panel .body h3{font-size:26px}
.lb .panel .body p{color:var(--ink-2)}
.lb .close{position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;border:0;background:var(--line-2);cursor:pointer;font-size:18px;line-height:1;z-index:1}
.lb .close:hover{background:var(--line)}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
@media (max-width:760px){.lb .panel{grid-template-columns:1fr}.lb .panel .media{min-height:220px}}

/* certs */
.certs{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;list-style:none;margin:0;padding:0}
.certs li{background:var(--bg-2);border-radius:18px;padding:22px 18px;display:flex;flex-direction:column;gap:4px;border:1px solid var(--line-2)}
.certs b{font-size:22px;font-weight:600;letter-spacing:-.02em}
.certs span{font-size:13px;color:var(--ink-2);line-height:1.35}
@media (max-width:900px){.certs{grid-template-columns:repeat(3,1fr)}}
@media (max-width:520px){.certs{grid-template-columns:repeat(2,1fr)}}

/* timeline */
.timeline{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(7,1fr);gap:0;position:relative}
.timeline::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--line)}
.timeline li{padding:28px 20px 0 0;position:relative}
.timeline li::before{content:"";position:absolute;top:5px;left:0;width:9px;height:9px;border-radius:50%;background:var(--orange)}
.timeline b{display:block;font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--ink);margin-bottom:8px}
.timeline span{font-size:14px;color:var(--ink-2);line-height:1.4;display:block}
@media (max-width:1000px){.timeline{grid-template-columns:1fr;gap:0}.timeline::before{top:0;bottom:0;left:4px;width:1px;height:auto;right:auto}.timeline li{padding:0 0 28px 28px}.timeline li::before{top:4px}}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery figure{margin:0;border-radius:20px;overflow:hidden;aspect-ratio:4/3;background:var(--tint);position:relative}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:40px 18px 16px;background:linear-gradient(to top,rgba(0,0,0,.6),transparent);color:#fff;font-size:14px}
@media (max-width:820px){.gallery{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.gallery{grid-template-columns:1fr}}

/* logo wall */
.logos{background:#fff;border-radius:24px;padding:clamp(16px,3vw,32px);border:1px solid var(--line-2)}
.logos img{width:100%}

/* cta band */
.cta-band{border-radius:32px;background:var(--dark);color:#fff;padding:clamp(40px,6vw,80px);display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-20%;top:-40%;width:60%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(238,115,49,.35),transparent 65%);pointer-events:none}
.cta-band h2{margin-bottom:12px;color:#fff}
.cta-band p{color:var(--dark-ink-2);max-width:40ch}
.cta-band .actions{display:flex;gap:16px;justify-content:flex-end;flex-wrap:wrap;position:relative;z-index:1}
@media (max-width:820px){.cta-band{grid-template-columns:1fr}.cta-band .actions{justify-content:flex-start}}

/* contact */
.contact{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(32px,5vw,72px);align-items:start}
.form{background:#fff;border-radius:28px;padding:clamp(24px,4vw,40px);display:grid;grid-template-columns:1fr 1fr;gap:18px;border:1px solid var(--line-2)}
.form h2{grid-column:1/-1;font-size:28px;margin-bottom:4px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:500;color:var(--ink-2)}
.field input,.field select,.field textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--tint);border:1px solid transparent;border-radius:12px;padding:12px 14px;width:100%;transition:border-color .2s,background .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;background:#fff;border-color:var(--blue-2);box-shadow:0 0 0 4px rgba(0,113,227,.15)}
.field input:user-invalid{border-color:#e0362c}
.field .hint{font-size:12px;color:var(--ink-3)}
.form .btn{grid-column:1/-1;justify-self:start}
.form .note{grid-column:1/-1;font-size:13px;color:var(--ink-3)}
.form-ok{grid-column:1/-1;background:#e8f5ec;color:#1b5e20;border-radius:12px;padding:14px 16px;font-size:15px;display:none}
.form-ok.show{display:block}
@media (max-width:820px){.contact{grid-template-columns:1fr}}
@media (max-width:560px){.form{grid-template-columns:1fr}}
.side h3{font-size:13px;font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;font-weight:500;color:var(--ink-3);margin:26px 0 6px}
.side h3:first-child{margin-top:0}
.side p{color:var(--ink);font-size:17px}
.side a{color:var(--blue-2)}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:19px;font-weight:500;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:26px;font-weight:300;color:var(--ink-2);transition:transform .35s var(--ease);flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 0 24px;color:var(--ink-2);max-width:62ch}

/* footer */
.foot{background:var(--tint);color:var(--ink-2);font-size:12px;padding:40px var(--gutter) 32px;border-top:1px solid var(--line-2)}
.foot-in{max-width:var(--max);margin-inline:auto}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:20px}
.foot .ft{font-size:12px;font-weight:600;color:var(--ink);margin-bottom:10px}
.foot p{line-height:1.6}
.foot a{color:var(--ink-2)}
.foot a:hover{color:var(--ink)}
.foot .legal{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot-grid{grid-template-columns:1fr}}

/* toast */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:980px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s var(--ease);z-index:200}
.toast.show{opacity:1;transform:translate(-50%,0)}