/* ktech.my — "live data" concept: light lab paper, graphite, Autel-signal red, amber, data-cyan. Sharp corners, hairlines, mono labels. */
:root{--paper:#f3f4f0;--paper2:#e8eae4;--card:#fff;--ink:#15171a;--ink2:#3b4047;--mute:#6a7078;--line:#d5d8d1;--red:#d92128;--red2:#b5161c;--redt:#fde8e8;--amber:#f2a516;--cyan:#0f9fb3;--cyan2:#c9eef3;--g:#1b8a4b;--hd:'Chakra Petch',system-ui,sans-serif;--bd:'Public Sans',system-ui,sans-serif}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 var(--bd);overflow-x:hidden}
html[lang^=zh] body{font-family:var(--bd),'Noto Sans SC',sans-serif}
img{max-width:100%;height:auto;display:block}a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
h1,h2,h3{font-family:var(--hd);line-height:1.08;margin:0;letter-spacing:-.01em}
h2{font-size:clamp(26px,6.4vw,40px)}h3{font-size:19px}
.mono{font-family:var(--hd);font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:12px}
/* header */
.top{position:sticky;top:0;z-index:40;background:rgba(243,244,240,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:10px;height:72px}
.brand{display:flex;align-items:center;text-decoration:none;flex:0 0 auto}.brand img{height:54px;width:auto;max-width:min(200px,48vw)}
.tnav{display:none;gap:22px;margin-left:auto}.tnav a{text-decoration:none;font:600 14px var(--hd);letter-spacing:.04em;text-transform:uppercase;color:var(--ink2)}.tnav a[aria-current]{color:var(--red)}
.lang{margin-left:auto;display:flex;border:1.5px solid var(--ink);font:700 12px var(--hd)}
.lang a{padding:5px 8px;text-decoration:none;line-height:1}.lang a[aria-current]{background:var(--ink);color:var(--paper)}
.menu-btn{width:40px;height:40px;border:1.5px solid var(--ink);background:transparent;display:grid;place-content:center;gap:4px;cursor:pointer;padding:0}
.menu-btn i{display:block;width:18px;height:2px;background:var(--ink)}
#mnav{display:none;border-top:1px solid var(--line);background:var(--paper)}#mnav.open{display:block}
#mnav a{display:flex;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);text-decoration:none;font:600 17px var(--hd);text-transform:uppercase;letter-spacing:.04em}
#mnav a::after{content:'→';color:var(--red)}
@media(min-width:900px){.tnav{display:flex}.lang{margin-left:8px}.menu-btn,#mnav{display:none!important}.top .wrap{height:80px}.brand img{height:62px;max-width:none}}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 22px;font:700 16px var(--hd);letter-spacing:.03em;text-transform:uppercase;text-decoration:none;border:0;cursor:pointer;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px))}
.btn-wa{background:var(--red);color:#fff;box-shadow:0 10px 24px -10px rgba(217,33,40,.7)}.btn-wa:hover{background:var(--red2)}
.btn-wa svg{width:22px;height:22px;fill:#fff}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);clip-path:none}
/* hero */
.hero{position:relative;padding:22px 0 30px;overflow:hidden;background:
 linear-gradient(var(--paper),rgba(243,244,240,0) 30%),
 repeating-linear-gradient(0deg,transparent 0 23px,rgba(21,23,26,.05) 23px 24px),repeating-linear-gradient(90deg,transparent 0 23px,rgba(21,23,26,.05) 23px 24px)}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;background:var(--ink);color:#fff}
.badge b{width:8px;height:8px;border-radius:50%;background:var(--g);box-shadow:0 0 0 0 rgba(27,138,75,.7);animation:pulse 1.8s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(27,138,75,0)}100%{box-shadow:0 0 0 0 rgba(27,138,75,0)}}
.hero h1{font-size:clamp(34px,9.6vw,68px);margin:14px 0 10px;font-weight:700;text-transform:uppercase}
.hero h1 em{font-style:normal;color:var(--red);display:inline-block}
.hero .line{font-size:18px;color:var(--ink2);margin:0 0 18px;max-width:30ch}
.hero .ctas{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.hero .ctas .btn-wa{flex:1 1 220px}
.hero .ctas .lnk{font:600 14px var(--hd);text-transform:uppercase;letter-spacing:.05em;color:var(--ink2)}
.hgrid{display:grid;gap:22px}
@media(min-width:900px){.hgrid{grid-template-columns:1.05fr .95fr;align-items:center}.hero{padding:56px 0 64px}}
/* scan tablet */
.tab{position:relative;background:#1d2024;border:10px solid #2a2e33;outline:1px solid #000;padding:14px;color:#e9ecef;box-shadow:0 30px 50px -28px rgba(0,0,0,.6)}
.tab::before{content:'';position:absolute;inset:-10px auto -10px -10px;width:10px;background:linear-gradient(#2a2e33,#3a3f45)}
.tab .th{display:flex;justify-content:space-between;align-items:center;font:600 11px var(--hd);letter-spacing:.12em;color:#9aa3ab;margin-bottom:10px}
.tab .th span:last-child{color:var(--amber)}
.wave{height:84px;background:#111316;border:1px solid #30353b;position:relative;overflow:hidden}
.wave svg{position:absolute;inset:0;width:200%;height:100%;animation:wv 5s linear infinite}
.wave svg.b{animation-duration:7.5s;opacity:.85}
@keyframes wv{to{transform:translateX(-50%)}}
.wave .rpm{position:absolute;right:8px;top:6px;font:700 20px var(--hd);color:#fff}
.wave .rpm small{font-size:10px;color:#9aa3ab;margin-left:3px}
.sys{list-style:none;margin:10px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px}
.sys li{display:flex;justify-content:space-between;gap:6px;padding:8px 9px;background:#262a2f;font:600 13px var(--hd);letter-spacing:.02em;opacity:.35;transition:opacity .3s}
.sys li i{font-style:normal;color:#9aa3ab}
.sys li.on{opacity:1}.sys li.on i{color:#4ade80}
.bar{margin-top:10px;height:8px;background:#30353b;position:relative}.bar b{position:absolute;inset:0 auto 0 0;width:0;background:linear-gradient(90deg,var(--red),var(--amber));transition:width .45s linear}
.tab .st{margin-top:8px;font:600 12px var(--hd);letter-spacing:.08em;color:#9aa3ab;text-transform:uppercase}
.tab .prod{position:absolute;right:-6px;bottom:-58px;width:36%;max-width:210px;background:#fff;padding:6px;transform:rotate(-4deg);box-shadow:0 14px 30px -12px rgba(0,0,0,.5)}
.tab .prod small{display:block;font:600 9px var(--hd);color:var(--mute);letter-spacing:.06em;text-align:center}
.hero .tabwrap{padding-bottom:52px}
/* sections */
.sec{padding:52px 0}.sec.alt{background:var(--paper2)}.sec.dark{background:var(--ink);color:#fff}
.sh{display:flex;justify-content:space-between;align-items:end;gap:12px;margin-bottom:20px}
.sh .mono{color:var(--red)}.sh p{margin:6px 0 0;color:var(--mute)}
/* product glide (Wrapstar behaviour) */
.glide{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 18px 18px;margin:0 -18px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.glide::-webkit-scrollbar{display:none}.glide.auto{scroll-snap-type:none}.glide>*{flex:0 0 auto;scroll-snap-align:start}
@media(min-width:1156px){.glide{margin:0 calc((1120px - 100vw)/2);padding-left:calc((100vw - 1120px)/2 + 18px);padding-right:calc((100vw - 1120px)/2 + 18px)}}
.fam{width:236px;background:var(--card);border:1px solid var(--line);text-decoration:none;display:flex;flex-direction:column;position:relative}
.fam .pic{aspect-ratio:4/3;display:grid;place-items:center;background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.fam .pic img{width:100%;height:100%;object-fit:contain;padding:10px;pointer-events:none;-webkit-user-drag:none}
.fam .pic svg{width:64px;height:64px;stroke:var(--ink);fill:none;stroke-width:1.6}
.fam .code{position:absolute;top:8px;left:8px;background:var(--ink);color:#fff;padding:3px 6px;font:700 11px var(--hd);letter-spacing:.08em}
.fam .tx{padding:12px 14px 14px}.fam h3{font-size:18px;text-transform:uppercase}.fam p{margin:4px 0 0;font-size:14px;color:var(--mute)}
.fam .md{display:block;margin-top:8px;font:600 12px var(--hd);color:var(--cyan);letter-spacing:.03em}
/* proof */
.proof{display:grid;gap:10px}
.proof a,.proof div{display:flex;gap:12px;align-items:center;padding:14px;background:var(--card);border-left:4px solid var(--red);text-decoration:none}
.proof svg{flex:0 0 26px;width:26px;height:26px;stroke:var(--red);fill:none;stroke-width:2}
@media(min-width:900px){.proof{grid-template-columns:repeat(3,1fr)}}
/* steps: progress bar */
.steps{list-style:none;margin:0;padding:0;position:relative;display:grid;gap:0}
.steps li{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:0 0 22px;position:relative}
.steps li::before{content:'';position:absolute;left:21px;top:40px;bottom:0;width:2px;background:linear-gradient(var(--red),var(--amber))}
.steps li:last-child::before{display:none}
.steps .n{width:44px;height:44px;display:grid;place-items:center;border:2px solid var(--ink);font:700 16px var(--hd);background:var(--paper)}
.steps li:last-child .n{background:var(--red);border-color:var(--red);color:#fff}
.steps h3{text-transform:uppercase;margin-top:4px}.steps p{margin:2px 0 0;color:var(--mute)}
@media(min-width:900px){.steps{grid-template-columns:repeat(3,1fr);gap:18px}.steps li::before{left:56px;right:-18px;top:21px;bottom:auto;width:auto;height:2px}}
/* autoseo band */
.seo{display:grid;gap:14px;align-items:center;padding:24px;background:var(--ink);color:#fff;position:relative;overflow:hidden}
.seo::after{content:'';position:absolute;right:-40px;top:-40px;width:160px;height:160px;border:24px solid rgba(15,159,179,.35);border-radius:50%}
.seo p{margin:0;color:#c9ced3}.seo .btn{background:var(--cyan);color:#fff;justify-self:start;position:relative;z-index:1}
@media(min-width:900px){.seo{grid-template-columns:1fr auto}}
/* faq */
.faq details{border-top:1px solid var(--line);padding:4px 0}.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:12px;padding:14px 0;font:600 17px var(--hd)}
.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:'+';color:var(--red);font-size:22px;line-height:1}
.faq details[open] summary::after{content:'–'}.faq p{margin:0 0 14px;color:var(--ink2)}
/* final cta */
.end{text-align:left}.end h2{color:#fff;text-transform:uppercase}.end p{color:#c9ced3;margin:8px 0 18px}
/* inner pages */
.ph{padding:30px 0 22px;border-bottom:1px solid var(--line);background:repeating-linear-gradient(90deg,transparent 0 23px,rgba(21,23,26,.05) 23px 24px)}
.ph h1{font-size:clamp(32px,8.6vw,54px);text-transform:uppercase;margin:10px 0}
.ph p{margin:0 0 16px;color:var(--ink2);max-width:52ch}
.crumb{font:600 12px var(--hd);letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}.crumb a{text-decoration:none}
.flist{display:grid;gap:14px}
@media(min-width:700px){.flist{grid-template-columns:1fr 1fr}}@media(min-width:1000px){.flist{grid-template-columns:repeat(3,1fr)}}
.flist .fam{width:auto}
.svc{display:grid;gap:12px}
.svc article{display:grid;grid-template-columns:54px 1fr;gap:12px;padding:18px;background:var(--card);border:1px solid var(--line)}
.svc .n{font:700 15px var(--hd);color:var(--red);border:2px solid var(--red);height:46px;display:grid;place-items:center}
.svc h2{font-size:22px;text-transform:uppercase}.svc p{margin:6px 0 0;color:var(--ink2)}.svc a{font:700 14px var(--hd);color:var(--cyan);text-transform:uppercase;letter-spacing:.04em}
.svc article.hl{background:var(--ink);color:#fff;border-color:var(--ink)}.svc article.hl p{color:#c9ced3}
@media(min-width:900px){.svc{grid-template-columns:1fr 1fr}}
.spec{width:100%;border-collapse:collapse;background:var(--card)}
.spec th,.spec td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;word-break:break-word}
.spec th{width:38%;font:600 12px var(--hd);letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
.cgrid{display:grid;gap:14px}@media(min-width:900px){.cgrid{grid-template-columns:1fr 1fr}}
.cbox{padding:20px;background:var(--card);border:1px solid var(--line)}
.cbox .big{font:700 26px var(--hd);margin:6px 0 14px;display:block;text-decoration:none}
form label{display:block;font:600 12px var(--hd);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:12px 0 4px}
form input{width:100%;font:16px var(--bd);padding:12px;border:1.5px solid var(--line);background:var(--paper);border-radius:0}
form input:focus{outline:2px solid var(--cyan);border-color:var(--cyan)}
form .btn{margin-top:16px;width:100%}
/* footer */
.foot{background:#0e1012;color:#aeb4ba;padding:36px 0 96px;font-size:14px}
.foot .fg{display:grid;gap:22px}@media(min-width:900px){.foot .fg{grid-template-columns:1.2fr 1fr 1fr}.foot{padding-bottom:40px}}
.foot img{height:54px;width:auto}.foot a{color:#fff}.foot nav a{display:block;padding:4px 0;text-decoration:none}
.foot .tm{margin-top:22px;padding-top:16px;border-top:1px solid #24282c;font-size:12px;color:#7d848b}
.foot .seo-l{display:inline-block;margin-top:8px;padding:6px 10px;border:1px solid #33393f;text-decoration:none}
/* dock */
.dock{position:fixed;left:0;right:0;bottom:0;z-index:50;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:linear-gradient(rgba(14,16,18,0),rgba(14,16,18,.55))}
.dock .btn{width:100%}
@media(min-width:900px){.dock{left:auto;right:18px;bottom:18px;padding:0;background:none}.dock .btn{width:auto}}
.rv{opacity:0;transform:translateY(14px);transition:opacity .5s,transform .5s}.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}
/* real photos */
.real{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.real figure,.tshot,.real1{margin:0;position:relative;background:#000}
.real img,.tshot img,.real1 img{width:100%;aspect-ratio:4/5;object-fit:cover}
.real figcaption,.tshot figcaption,.real1 figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 10px 8px;background:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,.78));color:#fff;font:600 12px var(--hd);letter-spacing:.04em;text-transform:uppercase}
.tshot{width:240px;border:1px solid var(--line)}.tshot img{pointer-events:none;-webkit-user-drag:none}
/* real stock / deliveries: photo cards stay a uniform 4:5 cover frame.
   The 9:16 EV kit clip sits in its own modest contain card so the whole frame is visible.
   Mobile photos ~78vw; desktop a fixed 300px. object-position is set per photo in the markup. */
.stock-grid{display:flex;flex-wrap:wrap;gap:14px}
.stock-shot{width:78vw;max-width:320px;aspect-ratio:4/5;height:auto;position:relative;overflow:hidden;background:#111;align-self:flex-start;flex:0 0 auto}
@media(min-width:900px){.stock-shot{width:300px;max-width:300px}}
.stock-shot picture,.stock-shot .stock-vid-box{position:absolute;inset:0;display:block;margin:0;background:#111}
.stock-shot img,.stock-shot video,.stock-shot .stock-vid-poster,.stock-shot .stock-clip{width:100%;height:100%;max-width:none;object-fit:cover;pointer-events:none;-webkit-user-drag:none}
.stock-shot figcaption{z-index:2;padding:36px 12px 14px;background:linear-gradient(rgba(0,0,0,0),rgba(0,0,0,.84) 58%);font:600 12px/1.35 var(--hd);letter-spacing:.04em;text-transform:uppercase;color:#fff}
@media(max-width:899px){#real-stock{padding-bottom:calc(52px + 28px + env(safe-area-inset-bottom,0px))}}
@media(prefers-reduced-motion:reduce){.stock-clip{display:none}}
.stock-vid-full{margin:22px 0 0;width:min(65vw, calc(56vh * 9 / 16), 340px);max-width:340px}
.stock-vid-full video{width:100%;height:auto;aspect-ratio:9/16;object-fit:contain;object-position:center;background:#111;display:block;border-radius:16px}
.stock-vid-full figcaption{margin:8px 0 0;font:600 12px var(--hd);letter-spacing:.04em;text-transform:uppercase;color:var(--mute)}
/* Homepage EV kit clip: own 9:16 card, uncropped, modest phone size, caption below. */
.stock-vid-feature{margin:0 auto 22px;width:min(65vw, calc(56vh * 9 / 16), 340px)}
@media(min-width:900px){.stock-vid-feature{width:340px;max-width:340px}}
.stock-vid-feature .stock-vid-box{position:relative;aspect-ratio:9/16;background:#111;border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.stock-vid-feature .stock-vid-poster,.stock-vid-feature video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;background:#111;pointer-events:none;-webkit-user-drag:none}
.stock-vid-feature figcaption{position:static;padding:8px 2px 0;background:none;color:var(--mute);font:600 12px var(--hd);letter-spacing:.04em;text-transform:uppercase}

.about-g{display:grid;gap:16px}@media(min-width:800px){.about-g{grid-template-columns:.8fr 1.2fr;align-items:start}}
.real1{max-width:420px}
.cact{display:grid;gap:8px;margin-top:10px}.cact .btn{min-height:46px;font-size:14px;text-transform:none;word-break:break-all}
.lnk{color:var(--ink2)}
@media(min-width:900px){.real{grid-template-columns:1fr 1fr;max-width:760px}}
.recent{margin:16px 0 0;padding:12px 14px;border-left:4px solid var(--cyan);background:var(--card)}
.newbox{margin-bottom:18px;padding:18px;background:var(--ink);color:#fff;border-left:6px solid var(--amber)}.newbox .mono{color:var(--amber)}.newbox h2{font-size:22px;margin-top:4px;text-transform:uppercase}.newbox p{margin:6px 0 0;color:#c9ced3}
.wah{width:100%;margin-top:8px;text-transform:none;font-size:14px;white-space:nowrap;padding:0 12px}.wah svg{width:20px;height:20px;fill:#1b8a4b}

/* product sections (brochure models) */
.psec{display:grid;gap:16px;margin:0 0 28px;padding:18px;background:var(--card);border:1px solid var(--line)}
.psec:last-child{margin-bottom:0}
@media(min-width:800px){.psec{grid-template-columns:.9fr 1.1fr;align-items:start;gap:22px}}
.phero{background:var(--paper2);border:1px solid var(--line);display:grid;place-items:center;min-height:180px}
.phero img{width:100%;height:auto;object-fit:contain;max-height:420px;padding:10px}
.ptx .mono{color:var(--red)}
.ptx h2,.ptx h1{font-size:clamp(22px,5.5vw,32px);text-transform:uppercase;margin:6px 0 4px}
.ptx .ptag{margin:0 0 8px;color:var(--ink2);font-size:15px}
.ptx h3{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:16px 0 6px}
.pfeats{margin:0;padding:0 0 0 18px}
.pfeats li{margin:0 0 6px}
.pspec{display:grid;gap:0;margin:0}
@media(min-width:640px){.pspec{grid-template-columns:1fr 1fr;gap:0 18px}}
.pspec div{display:grid;grid-template-columns:44% 1fr;gap:8px;padding:8px 0;border-bottom:1px solid var(--line);align-items:start}
.pspec dt{font:600 11px var(--hd);letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.pspec dd{margin:0;font-size:14px;word-break:break-word}
.pcov{margin:12px 0 0;font-size:14px;color:var(--ink2)}
.pnote{margin:12px 0 0;padding:10px 12px;border-left:4px solid var(--amber);background:var(--paper);font-size:14px}
.pctas{display:grid;gap:8px;margin-top:16px}
.pctas .btn{width:100%;text-transform:none;font-size:15px;white-space:normal;text-align:center}
.pmore{margin:12px 0 0}
.pmore a{font:700 14px var(--hd);letter-spacing:.04em;text-transform:uppercase;color:var(--cyan);text-decoration:none}
.prel{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.prel a{display:inline-block;padding:8px 10px;border:1px solid var(--line);background:var(--paper);text-decoration:none;font:600 13px var(--hd)}
.pcrumb{font-size:13px;color:var(--mute);margin:0 0 8px}
.pcrumb a{color:var(--ink2);text-decoration:none}
#models{scroll-margin-top:70px}